All calculators A–Z
Every one of our 743 calculators, converters and reference tables in alphabetical order.
# 4
A 36
- A1C to Average Glucose CalculatorHealth
- Absolute Difference CalculatorAlgebra
- Absolute Value CalculatorAlgebra
- Acceleration CalculatorPhysics
- Acceleration ConverterConverters
- Acres to Square Feet ConverterConverters
- Activity Method Depreciation CalculatorFinance
- Add Time to a Clock Time CalculatorTime & Date
- Adding and Subtracting Fractions CalculatorMath
- Adding and Subtracting Integers CalculatorMath
- Adding MachineFinance
- Addition and Multiplication Word ProblemsMath
- Adjustable-Rate Mortgage (ARM) CalculatorFinance
- Advanced Loan CalculatorFinance
- Age CalculatorTime & Date
- Age Checker (Old Enough?)Time & Date
- Age Difference CalculatorTime & Date
- Algebra Word Problems: AgesMath
- Algebra Word Problems: CoinsMath
- Amortization CalculatorFinance
- Amps to Watts CalculatorEngineering
- Angle ConverterConverters
- Annuity Payment Table (Payment per $1 Borrowed)Finance
- Annuity Payout CalculatorFinance
- Annulus CalculatorGeometry
- APR CalculatorFinance
- Area ConverterConverters
- Arithmetic Sequence CalculatorDiscrete
- Aspect Ratio CalculatorTech
- Asphalt CalculatorConstruction
- Auto Loan Payment Calculator with Trade-In and TaxFinance
- Auto Loan Refinance CalculatorFinance
- Average of Fractions CalculatorMath
- Average Percentage CalculatorMath
- Average Velocity CalculatorPhysics
- Avoirdupois Weight ConverterConverters
B 40
- Balance Transfer CalculatorFinance
- Bandwidth & Data Usage CalculatorTech
- Bar to PSI ConverterConverters
- Base64 Encoder & DecoderTech
- Basic APR CalculatorFinance
- Basic CalculatorMath
- Battery Life CalculatorEngineering
- Batting Average CalculatorGames
- Beam Deflection CalculatorEngineering
- Bi-Weekly Mortgage Payment CalculatorFinance
- Bi-Weekly Time Card Calculator with LunchTime Cards
- Bid-Ask Spread CalculatorFinance
- Binary CalculatorTech
- Binary, Hex & Decimal ConverterTech
- Bingo Card GeneratorGames
- Bingo Number CallerGames
- Binomial Probability CalculatorStatistics
- Birthday CalculatorTime & Date
- Birthday Paradox CalculatorStatistics
- Bitwise Calculator (AND, OR, XOR, Shift)Tech
- BlackjackGames
- Blood Alcohol Content (BAC) CalculatorHealth
- BMI CalculatorHealth
- BMI Calculator for WomenHealth
- BMR CalculatorHealth
- Board Foot CalculatorConstruction
- Body Fat Calculator (US Navy Method)Health
- Body Surface Area CalculatorHealth
- Bond Price CalculatorFinance
- Bond Yield to Maturity CalculatorFinance
- Bonus Tax CalculatorFinance
- Bowling Score CalculatorGames
- Boyle's Law CalculatorChemistry
- Break-Even CalculatorFinance
- Brick CalculatorConstruction
- BTU Calculator (Room AC & Heating)Construction
- Budget Calculator (50/30/20 Rule)Finance
- Buffer pH Calculator (Henderson–Hasselbalch)Chemistry
- Buoyancy Calculator (Archimedes' Principle)Physics
- Business Days CalculatorTime & Date
C 79
- Caffeine CalculatorEveryday
- CAGR CalculatorFinance
- Calorie Calculator (TDEE)Health
- Calories Burned CalculatorHealth
- Cap Rate CalculatorFinance
- Capacitor CalculatorEngineering
- Capital Gains Tax Calculator (2026)Finance
- Capsule CalculatorGeometry
- Car Depreciation CalculatorFinance
- Car Lease CalculatorFinance
- Car Loan CalculatorFinance
- Carpet CalculatorConstruction
- Cat Age CalculatorEveryday
- CD CalculatorFinance
- Celsius to Fahrenheit (°C to °F)Converters
- Celsius to Kelvin (°C to K)Converters
- Celsius to Rankine (°C to °R)Converters
- Centimeters to Inches (cm to in)Converters
- Centripetal Force CalculatorPhysics
- Change CalculatorFinance
- Character CounterStatistics
- Charles's Law CalculatorChemistry
- Checkbook Balance (Reconciliation) CalculatorFinance
- Checkbook Register CalculatorFinance
- Chi-Square Test CalculatorStatistics
- Chinese Zodiac CalculatorTime & Date
- Circle CalculatorGeometry
- Circle Equation CalculatorGeometry
- Circle Sector & Arc Length CalculatorGeometry
- Circular Permutations CalculatorDiscrete
- Closing Costs CalculatorFinance
- Clothing Size ConverterEveryday
- Coefficient of Variation CalculatorStatistics
- Coffee to Water Ratio CalculatorEveryday
- Coin FlipperGames
- Collatz Sequence CalculatorMath
- College Savings (529) CalculatorFinance
- Color Contrast Checker (WCAG)Tech
- Color Converter (HEX, RGB, HSL, CMYK)Tech
- Combinations Calculator (nCr)Discrete
- Combinations with Replacement CalculatorDiscrete
- Combined Gas Law CalculatorChemistry
- Commission CalculatorFinance
- Common Factors CalculatorMath
- Comparing Fractions CalculatorMath
- Completing the Square CalculatorAlgebra
- Complex Fractions CalculatorMath
- Compound Interest CalculatorFinance
- Compound Interest Factor TableFinance
- Conception CalculatorHealth
- Concrete Block CalculatorConstruction
- Concrete CalculatorConstruction
- Cone CalculatorGeometry
- Confidence Interval CalculatorStatistics
- Conical Frustum CalculatorGeometry
- Cooking Measurement ConverterConverters
- Correlation Coefficient CalculatorStatistics
- Cost of an Employee CalculatorFinance
- Cost of Living Comparison CalculatorFinance
- Coulomb's Law CalculatorPhysics
- Countdown TimerTime & Date
- Covariance CalculatorStatistics
- Credit Card Interest CalculatorFinance
- Credit Card Payoff CalculatorFinance
- Cross Multiplication CalculatorMath
- Cross Product CalculatorAlgebra
- Crypto Profit CalculatorFinance
- Cube CalculatorGeometry
- Cube Number Calculator (x³)Algebra
- Cube Root CalculatorAlgebra
- Cubic Equation CalculatorAlgebra
- Cubic Feet CalculatorConstruction
- Cubic Feet to Cubic Yards ConverterConverters
- Cubic Yards CalculatorConstruction
- Cubic Yards to Cubic Feet ConverterConverters
- Cups to Milliliters ConverterConverters
- Currency Appreciation and Depreciation CalculatorFinance
- Currency ConverterFinance
- Cylinder CalculatorGeometry
D 44
- Data Storage Converter (Bytes, KB, MB, GB)Converters
- Date Calculator (Add or Subtract Days)Time & Date
- Date Difference CalculatorTime & Date
- Day of the Week CalculatorTime & Date
- Days Until CalculatorTime & Date
- Debt Consolidation CalculatorFinance
- Debt Payoff Calculator (Snowball vs. Avalanche)Finance
- Debt Ratios CalculatorFinance
- Debt-to-Income (DTI) Ratio CalculatorFinance
- Decibel CalculatorPhysics
- Decimal Degrees to DMS ConverterConverters
- Decimal Hours to Time CalculatorTime Cards
- Decimal to Fraction CalculatorMath
- Decimal to Percent CalculatorMath
- Deck CalculatorConstruction
- Declining Balance Depreciation CalculatorFinance
- Deferred Fixed Annuity CalculatorFinance
- Definite Integral Calculator (Numerical)Algebra
- Density Calculator (ρ = m/V)Physics
- Density ConverterConverters
- Depreciation CalculatorFinance
- Descriptive Statistics CalculatorStatistics
- Diamond Problem SolverMath
- Dice RollerGames
- Difference of Two Squares CalculatorAlgebra
- Digit Sum & Digital Root CalculatorMath
- Dilution Calculator (C₁V₁ = C₂V₂)Chemistry
- Discount Calculator (Percent Off)Finance
- Displacement Calculator (s = ½(u + v)t)Physics
- Displacement Calculator (s = ut + ½at²)Physics
- Displacement Calculator (s = vt)Physics
- Distance Between Two Points CalculatorGeometry
- Dividend Yield & DRIP CalculatorFinance
- Divisibility Rules CheckerMath
- Division Word ProblemsMath
- Dog & Cat Calorie CalculatorEveryday
- Dog Age CalculatorEveryday
- Doppler Effect CalculatorPhysics
- Dot Product CalculatorAlgebra
- Double Declining Balance Depreciation CalculatorFinance
- Down Payment CalculatorFinance
- Download Time CalculatorTech
- Draft Pick Trade Value CalculatorGames
- Drywall CalculatorConstruction
E 26
- E = mc² CalculatorPhysics
- Easter Date CalculatorTime & Date
- Effective Annual Rate (APY) CalculatorFinance
- Effective Interest Rate CalculatorFinance
- Efficiency (Operations) Ratios CalculatorFinance
- Elastic Potential Energy CalculatorPhysics
- Electricity Cost CalculatorEveryday
- Ellipse CalculatorGeometry
- Ellipsoid CalculatorGeometry
- Emergency Fund CalculatorFinance
- EMI CalculatorFinance
- Empirical Formula CalculatorChemistry
- Energy ConverterConverters
- Equal Principal Payment Amortization CalculatorFinance
- Equilateral Triangle CalculatorGeometry
- Equivalent Fractions CalculatorMath
- Equivalent Interest Rate CalculatorFinance
- ERA Calculator (Earned Run Average)Games
- Escape Velocity CalculatorPhysics
- Estimating Fractions CalculatorMath
- Euclid's Algorithm CalculatorMath
- EV Charging Cost CalculatorFinance
- Even Permutations CalculatorDiscrete
- Expanded Form CalculatorMath
- Expected Value CalculatorStatistics
- Exponent CalculatorAlgebra
F 45
- Factorial Calculator (n!)Discrete
- Factors CalculatorMath
- Fahrenheit to Celsius (°F to °C)Converters
- Fahrenheit to Kelvin (°F to K)Converters
- Fahrenheit to Rankine (°F to °R)Converters
- Federal Income Tax Calculator (2026)Finance
- Feet and Inches CalculatorConstruction
- Feet to Inches ConverterConverters
- Feet to Meters (ft to m)Converters
- Fence CalculatorConstruction
- FHA Loan CalculatorFinance
- Fibonacci CalculatorDiscrete
- Fifth Root CalculatorAlgebra
- Final Grade CalculatorStatistics
- Final Velocity Calculator (v² = u² + 2as)Physics
- FIRE Calculator (Financial Independence)Finance
- Five Card Draw PokerGames
- Five Number Summary CalculatorStatistics
- Fixed Declining Balance Depreciation CalculatorFinance
- Flooring CalculatorConstruction
- Flow Rate ConverterConverters
- FOIL Method CalculatorAlgebra
- Force Calculator (F = ma)Physics
- Force ConverterConverters
- Fourth Root CalculatorAlgebra
- Fraction CalculatorMath
- Fraction Exponents CalculatorMath
- Fraction to Decimal CalculatorMath
- Fraction to Decimal ChartMath
- Fraction to Percent CalculatorMath
- Fractions on a Number LineMath
- Free Fall CalculatorPhysics
- Freelance Hourly Rate CalculatorFinance
- Frequency ConverterConverters
- Frequency Table CalculatorStatistics
- Friction Calculator (f = μN)Physics
- Fuel Economy Converter (MPG ↔ L/100 km)Converters
- Function Table CalculatorAlgebra
- Future Value CalculatorFinance
- Future Value Formula ExplainedFinance
- Future Value of $1 TableFinance
- Future Value of a Lump Sum CalculatorFinance
- Future Value of Annuity CalculatorFinance
- Future Value of Annuity TableFinance
- Future Value of Cash Flows CalculatorFinance
G 19
- Gallons to Liters (gal to L)Converters
- Gas Mileage Calculator (MPG)Finance
- Gear Ratio CalculatorEngineering
- Geometric Sequence CalculatorDiscrete
- Gestational Age CalculatorHealth
- Golden Ratio CalculatorMath
- Golf Handicap Calculator (WHS)Games
- GPA CalculatorStatistics
- Grade CalculatorStatistics
- Grams to Moles CalculatorChemistry
- Grams to Ounces (g to oz)Converters
- Grams to Pounds (g to lb)Converters
- Grass Seed CalculatorConstruction
- Gravel CalculatorConstruction
- Gravitational Force Calculator (Newton's Law)Physics
- Gravitational Potential Energy CalculatorPhysics
- Greatest Common Factor (GCF) CalculatorMath
- Gross Pay CalculatorFinance
- GST CalculatorFinance
H 18
- Half-Life CalculatorChemistry
- Hash Generator (SHA-256, SHA-1, SHA-512)Tech
- Heat Conduction Calculator (Fourier's Law)Physics
- Height Converter (cm ↔ feet and inches)Converters
- Hemisphere CalculatorGeometry
- Hexagon CalculatorGeometry
- Holiday Pay CalculatorTime Cards
- Home Equity & HELOC CalculatorFinance
- Hooke's Law Calculator (F = −kx)Physics
- Horsepower to Kilowatts ConverterConverters
- Hourly to Salary CalculatorFinance
- Hours and Minutes CalculatorTime & Date
- Hours CalculatorTime Cards
- Hours to Days ConverterConverters
- Hours to Minutes ConverterConverters
- How Much Car Can I Afford?Finance
- How Much House Can I Afford?Finance
- How Much Loan Can I Afford?Finance
I 21
- Ideal Gas Law Calculator (PV = nRT)Physics
- Ideal Weight CalculatorHealth
- Image Resize CalculatorTech
- Improper Fraction to Mixed Number CalculatorMath
- Impulse Calculator (J = FΔt)Physics
- Impulse-Momentum Calculator (FΔt = mΔv)Physics
- Inches to Centimeters (in to cm)Converters
- Inches to Feet ConverterConverters
- Inflation Calculator (US CPI 1913–present)Finance
- Insulation Calculator (R-Value)Construction
- Interest Rate CalculatorFinance
- Interest-Only Mortgage CalculatorFinance
- Internal Rate of Return (IRR) CalculatorFinance
- Inventory Turnover CalculatorFinance
- Inverse Trig Functions CalculatorTrigonometry
- Inverse Trigonometric Function GraphsTrigonometry
- Investment Account CalculatorFinance
- Investment CalculatorFinance
- Investment Inflation CalculatorFinance
- IP Subnet Calculator (IPv4)Tech
- Isosceles Triangle CalculatorGeometry
J 1
K 9
- Kelvin to Celsius (K to °C)Converters
- Kelvin to Fahrenheit (K to °F)Converters
- Kelvin to Rankine (K to °R)Converters
- Kilograms to Pounds (kg to lb)Converters
- Kilometers to Miles (km to mi)Converters
- Kilowatts to Horsepower ConverterConverters
- Kinetic Energy CalculatorPhysics
- KPH to MPH (km/h to Miles per Hour)Converters
- kVA Calculator (kVA to Amps and Amps to kVA)Engineering
L 32
- Large Exponents CalculatorAlgebra
- Lattice Multiplication CalculatorMath
- Law of Cosines CalculatorGeometry
- Law of Sines CalculatorGeometry
- Layaway Plan CalculatorFinance
- Lean Body Mass CalculatorHealth
- Leap Year CalculatorTime & Date
- Lease vs. Buy a Car CalculatorFinance
- Least Common Denominator (LCD) CalculatorMath
- Least Common Multiple (LCM) CalculatorMath
- LED Resistor CalculatorEngineering
- Length ConverterConverters
- Limiting Reactant CalculatorChemistry
- Linear Inequality CalculatorAlgebra
- Linear Interpolation CalculatorAlgebra
- Linear Regression CalculatorStatistics
- Liquidity Ratios CalculatorFinance
- List of Perfect CubesAlgebra
- List of Perfect SquaresAlgebra
- List of Prime NumbersMath
- Liters to Gallons (L to gal)Converters
- Loan CalculatorFinance
- Loan Payment TableFinance
- Loan Repayment CalculatorFinance
- Logarithm CalculatorAlgebra
- Logarithm Equation CalculatorAlgebra
- Long Addition CalculatorMath
- Long Division CalculatorMath
- Long Division with Decimals CalculatorMath
- Long Multiplication CalculatorMath
- Long Subtraction CalculatorMath
- Lottery Number GeneratorGames
M 43
- Macro CalculatorHealth
- Margin CalculatorFinance
- Margin of Error CalculatorStatistics
- Markdown CalculatorFinance
- Markup CalculatorFinance
- Matrix CalculatorAlgebra
- Matrix Determinant CalculatorAlgebra
- Matrix Inverse CalculatorAlgebra
- Mean Calculator (Average)Statistics
- Mean, Median, Mode CalculatorStatistics
- Meters to Feet (m to ft)Converters
- Metric Prefix ConverterConverters
- Midpoint CalculatorGeometry
- Miles to Kilometers (mi to km)Converters
- Military Time ChartTime Cards
- Military Time ConverterTime Cards
- Milliliters to Fluid Ounces ConverterConverters
- Millimeters to Inches (mm to in)Converters
- Minutes to Decimal Hours ConverterTime Cards
- Minutes to Hours ConverterConverters
- Mixed Number to Decimal CalculatorMath
- Mixed Number to Improper Fraction CalculatorMath
- Mixed Number to Percent CalculatorMath
- Mixed Numbers CalculatorMath
- Modular Exponentiation CalculatorDiscrete
- Modulo CalculatorMath
- Molar Mass Calculator (Molecular Weight)Chemistry
- Molarity CalculatorChemistry
- Momentum Calculator (p = mv)Physics
- Momentum ConverterConverters
- Money Counter (Cash Counting Calculator)Finance
- Money Math CalculatorMath
- Moon Phase CalculatorTime & Date
- Mortgage CalculatorFinance
- Mortgage Payoff CalculatorFinance
- Mortgage Points CalculatorFinance
- Moving Average CalculatorStatistics
- MPH to KPH (Miles per Hour to km/h)Converters
- Mulch CalculatorConstruction
- Mulch Coverage ChartConstruction
- Multifactorial Calculator (n!!, n!!!)Discrete
- Multiples CalculatorMath
- Multiplication Table (Times Tables 1–12)Math
N 6
O 15
- Octagon CalculatorGeometry
- Odd Permutations CalculatorDiscrete
- Odds Probability CalculatorGames
- Ohm's Law CalculatorPhysics
- One-Rep Max (1RM) CalculatorHealth
- One-Way ANOVA CalculatorStatistics
- Online StopwatchTime & Date
- Orbital Period Calculator (Kepler's Third Law)Physics
- Order of Operations Calculator (PEMDAS)Math
- Ordering Fractions CalculatorMath
- Ounces to Grams (oz to g)Converters
- Ounces to Pounds (oz to lb)Converters
- Outlier Calculator (IQR & Z-Score)Statistics
- Overtime CalculatorTime Cards
- Ovulation CalculatorHealth
P 80
- P-Value CalculatorStatistics
- Paint CalculatorConstruction
- Parallelogram CalculatorGeometry
- Party Drinks CalculatorEveryday
- Party Food CalculatorEveryday
- Pascal's Triangle CalculatorDiscrete
- Password GeneratorTech
- Paver CalculatorConstruction
- Pay Raise CalculatorFinance
- Paycheck Calculator (Take-Home Pay)Finance
- Payroll CalculatorTime Cards
- Pendulum Period CalculatorPhysics
- Pension Lump Sum vs. Monthly CalculatorFinance
- Percent Composition CalculatorChemistry
- Percent Error CalculatorMath
- Percent of a Percent CalculatorMath
- Percent to Decimal CalculatorMath
- Percent to Fraction CalculatorMath
- Percent Tolerance CalculatorMath
- Percent Yield CalculatorChemistry
- Percentage CalculatorMath
- Percentage Change CalculatorMath
- Percentage Change Word ProblemsMath
- Percentage Decrease CalculatorMath
- Percentage Difference CalculatorMath
- Percentage Increase CalculatorMath
- Percentile CalculatorStatistics
- Perfect, Abundant & Deficient Number CheckerMath
- Period CalculatorHealth
- Periodic Compound Interest CalculatorFinance
- Periodic Interest Rate CalculatorFinance
- Permutations Calculator (nPr)Discrete
- Permutations with Replacement CalculatorDiscrete
- Personal Loan CalculatorFinance
- pH CalculatorChemistry
- PIN GeneratorGames
- Pixels Per Inch (PPI) CalculatorTech
- Pizza Size & Value CalculatorEveryday
- Place Value CalculatorMath
- Poisson Distribution CalculatorStatistics
- Poker Hand RankingsGames
- Poker Odds Calculator (Texas Hold'em Equity)Games
- Polar to Rectangular ConverterTrigonometry
- Polygon Area Calculator (Coordinates)Geometry
- Polynomial Derivative CalculatorAlgebra
- Polynomial Long Division CalculatorAlgebra
- Pounds to Kilograms (lb to kg)Converters
- Pounds to Ounces (lb to oz)Converters
- Power Calculator (P = W/t)Physics
- Power ConverterConverters
- Power Factor CalculatorEngineering
- Pregnancy Due Date CalculatorHealth
- Pregnancy Weight Gain CalculatorHealth
- Present Value CalculatorFinance
- Present Value Formula ExplainedFinance
- Present Value of $1 TableFinance
- Present Value of a Future Sum CalculatorFinance
- Present Value of Annuity CalculatorFinance
- Present Value of Annuity TableFinance
- Present Value of Cash Flows CalculatorFinance
- Pressure Calculator (P = F/A)Physics
- Pressure ConverterConverters
- Price CalculatorFinance
- Prime Factorization CalculatorMath
- Prime Number CheckerMath
- Printable Calendar GeneratorTime & Date
- Printable Timesheet TemplatesTime Cards
- Probability Calculator (And, Or, Not)Statistics
- Profit CalculatorFinance
- Profit Goal CalculatorFinance
- Profit Margin CalculatorFinance
- Profitability Ratios CalculatorFinance
- Projectile Motion CalculatorPhysics
- Property Tax CalculatorFinance
- Proportion CalculatorMath
- Protein Intake CalculatorHealth
- PSI to Bar ConverterConverters
- PTO Accrual CalculatorTime Cards
- Pyramid Frustum CalculatorGeometry
- Pythagorean Theorem CalculatorGeometry
Q 3
R 51
- RAID Capacity CalculatorTech
- Random Card GeneratorGames
- Random Name PickerGames
- Random Number and Letter Set GeneratorGames
- Random Number GeneratorGames
- Random Number Generator 1–10Games
- Random Number Generator 1–100Games
- Random Team GeneratorGames
- Range CalculatorStatistics
- Ratio CalculatorMath
- Ratio SimplifierMath
- Ratio to Fraction CalculatorMath
- RC Time Constant CalculatorEngineering
- Reactance and Resonance CalculatorEngineering
- Rebar CalculatorConstruction
- Recipe ScalerEveryday
- Reciprocal CalculatorMath
- Rectangle CalculatorGeometry
- Rectangular Prism CalculatorGeometry
- Reference Angle & Coterminal Angle CalculatorTrigonometry
- Refinance CalculatorFinance
- Regular Polygon CalculatorGeometry
- Rent Affordability CalculatorFinance
- Rent vs. Buy CalculatorFinance
- Rental Property Cash Flow CalculatorFinance
- Rental Property Depreciation CalculatorFinance
- Required Minimum Distribution (RMD) CalculatorFinance
- Resistor Color Code CalculatorEngineering
- Retaining Wall Block CalculatorConstruction
- Retirement Savings CalculatorFinance
- Retirement Withdrawal CalculatorFinance
- Reverse Sales Tax CalculatorFinance
- Rhombus CalculatorGeometry
- Riemann Sum CalculatorAlgebra
- Right Triangle CalculatorGeometry
- Ring Size ConverterEveryday
- Road Base CalculatorConstruction
- ROI CalculatorFinance
- Roman Numeral CalculatorConverters
- Roman Numeral ConverterConverters
- Roman Numeral Date ConverterConverters
- Roof Pitch CalculatorConstruction
- Roofing CalculatorConstruction
- Roth IRA CalculatorFinance
- Roth vs. Traditional IRA CalculatorFinance
- Round to Nearest Multiple CalculatorMath
- Rounding CalculatorMath
- Rounding Methods CalculatorMath
- Rounding to Significant Figures CalculatorMath
- Rule of 72 CalculatorFinance
- Running Pace CalculatorHealth
S 79
- Salary Inflation CalculatorFinance
- Salary to Hourly CalculatorFinance
- Sale Price CalculatorFinance
- Sales CalculatorFinance
- Sales Tax CalculatorFinance
- Sample Size CalculatorStatistics
- Sand CalculatorConstruction
- Savings CalculatorFinance
- Savings Goal CalculatorFinance
- Scientific CalculatorMath
- Scientific Notation CalculatorMath
- Scientific Notation ConverterMath
- Screen Size CalculatorTech
- Self-Employment Tax CalculatorFinance
- Selling Price CalculatorFinance
- Series and Parallel Resistor CalculatorEngineering
- Set Operations CalculatorDiscrete
- Shift Differential CalculatorTime Cards
- Shift Pattern Calculator (2-2-3, 4-on-4-off, DuPont)Time Cards
- Shoe Size ConverterEveryday
- Significant Figures CalculatorMath
- Significant Figures CounterMath
- Simple Interest Calculator (A = P(1 + rt))Finance
- Simple Interest Calculator (I = Prt)Finance
- Simple Loan CalculatorFinance
- Simplify Radicals CalculatorAlgebra
- Simplifying Complex Fractions CalculatorMath
- Simplifying Fractions CalculatorMath
- Sinusoidal Function CalculatorTrigonometry
- Sleep Calculator (Bedtime & Wake-Up)Health
- Slope CalculatorGeometry
- Slugging Percentage & OPS CalculatorGames
- Snell's Law CalculatorPhysics
- Social Security Benefits EstimatorFinance
- Sod CalculatorConstruction
- Solar Panel CalculatorEngineering
- Solution Concentration Calculator (ppm, %, M)Chemistry
- Solve for Exponent CalculatorAlgebra
- Solve for X in Fractions CalculatorMath
- Specific Heat Calculator (Q = mcΔT)Physics
- Speed ConverterConverters
- Speed Distance Time CalculatorMath
- Sphere CalculatorGeometry
- Spherical Cap CalculatorGeometry
- Split the Bill CalculatorFinance
- Square CalculatorGeometry
- Square Feet to Acres ConverterConverters
- Square Feet to Square Meters ConverterConverters
- Square Footage CalculatorConstruction
- Square Meters to Square Feet ConverterConverters
- Square Number Calculator (x²)Algebra
- Square Pyramid CalculatorGeometry
- Square Root CalculatorAlgebra
- Stadium CalculatorGeometry
- Stair CalculatorConstruction
- Standard Deviation CalculatorStatistics
- Standard Error CalculatorStatistics
- Standard Form CalculatorMath
- Startup Costs CalculatorFinance
- State and Local Sales Tax CalculatorFinance
- State Income Tax CalculatorFinance
- Statistics FormulasStatistics
- Stem and Leaf Plot GeneratorStatistics
- Steps to Miles CalculatorHealth
- Stock Average Cost CalculatorFinance
- Stock Profit CalculatorFinance
- Stock Valuation Ratios CalculatorFinance
- Stone to Kilograms ConverterConverters
- Straight Line Depreciation CalculatorFinance
- Stress, Strain and Young's Modulus CalculatorEngineering
- Student Loan CalculatorFinance
- SudokuGames
- Sum CalculatorStatistics
- Sum of the Years' Digits Depreciation CalculatorFinance
- Summation (Sigma Notation) CalculatorDiscrete
- Sunrise and Sunset CalculatorTime & Date
- Surface Area CalculatorGeometry
- Synthetic Division CalculatorAlgebra
- System of Linear Equations Calculator (2×2 and 3×3)Algebra
T 48
- T-Distribution Critical Value CalculatorStatistics
- T-Test CalculatorStatistics
- Tablespoons to Teaspoons ConverterConverters
- Tank Volume CalculatorConstruction
- Target Heart Rate CalculatorHealth
- Tax Refund Estimator (2026)Finance
- Temperature ConverterConverters
- Texas Hold'em PokerGames
- Text Case ConverterTech
- Text to ASCII & Unicode ConverterTech
- Thin Lens & Mirror Equation CalculatorPhysics
- Three Card PokerGames
- Three-Phase Power CalculatorEngineering
- Tile CalculatorConstruction
- Time and a Half CalculatorTime Cards
- Time CalculatorTime & Date
- Time Card CalculatorTime Cards
- Time Clock CalculatorTime Cards
- Time Duration CalculatorTime & Date
- Time to Decimal Hours CalculatorTime Cards
- Time Unit ConverterConverters
- Time Wasted CalculatorTime Cards
- Time Zone ConverterTime & Date
- Timesheet CalculatorTime Cards
- Tip CalculatorFinance
- Titration CalculatorChemistry
- Topsoil CalculatorConstruction
- Torque CalculatorEngineering
- Torque ConverterConverters
- Torus CalculatorGeometry
- Tournament Bracket GeneratorGames
- Trading Card Game Life Points CalculatorGames
- Traditional IRA CalculatorFinance
- Trapezoid CalculatorGeometry
- Triangle Area CalculatorGeometry
- Triangle Calculator (SSS, SAS, ASA, AAS, SSA)Geometry
- Triangle Circumcircle & Incircle CalculatorGeometry
- Triangular Prism CalculatorGeometry
- Trig Functions of π CalculatorTrigonometry
- Trigonometric Function GraphsTrigonometry
- Trigonometric Functions CalculatorTrigonometry
- Trigonometric IdentitiesTrigonometry
- Trigonometric Ratios TableTrigonometry
- Troy Weight ConverterConverters
- Truth Table GeneratorDiscrete
- Tube CalculatorGeometry
- Turkey Cooking Time CalculatorEveryday
- Two's Complement CalculatorTech
U 7
V 12
- VA Loan CalculatorFinance
- Variable Declining Balance Depreciation CalculatorFinance
- Variance CalculatorStatistics
- VAT CalculatorFinance
- Velocity Calculator (v = u + at)Physics
- Video File Size & Bitrate CalculatorTech
- VO2 Max CalculatorHealth
- Voltage Divider CalculatorEngineering
- Voltage Drop CalculatorEngineering
- Volume CalculatorGeometry
- Volume ConverterConverters
- Vote Percentage CalculatorStatistics
W 21
- Waist-to-Hip Ratio CalculatorHealth
- Wallpaper CalculatorConstruction
- Water Intake CalculatorHealth
- Water Usage CalculatorEveryday
- Watts to Amps CalculatorEngineering
- Wavelength Calculator (λ = v/f)Physics
- Wedding Budget CalculatorEveryday
- Week Number Calculator (ISO)Time & Date
- Weight and Mass ConverterConverters
- Weight Calculator (W = mg)Physics
- Weight Loss Timeline CalculatorHealth
- Weighted Average CalculatorStatistics
- What Is My IP AddressTech
- Wheel Spinner (Random Picker)Games
- WHIP CalculatorGames
- Wire Gauge (AWG) CalculatorEngineering
- Word CounterStatistics
- Word Form to Standard Form CalculatorMath
- Work Calculator (W = Fd)Physics
- Work Hours CalculatorTime Cards
- Working Days per Month & Year CalculatorTime Cards