Hours become minutes whenever you plan a schedule, estimate how long a task will take, or read a timesheet that records time as a decimal. The math is a single multiplication by 60, but decimal hours such as 7.75 or 0.4 are easy to misread, so this converter shows the answer three ways: total minutes, hours-and-minutes, and clock format.
How to use the hours to minutes converter
- Enter the number of Hours. Whole numbers and decimals both work, such as 3, 1.5 or 7.75.
- Read the total minutes on the tape, along with the same duration as hours and minutes (2 h 45 min), clock format (2:45) and seconds.
- Use the table for common values at a glance.
Hours to minutes formula
An hour contains 60 minutes, so:
To write decimal hours as hours and minutes, separate the whole number from the decimal part and convert only the decimal part:
Worked example: 2.75 hours
Total minutes: 2.75 × 60 = 165 minutes
Hours and minutes: whole hours = 2; 0.75 × 60 = 45 minutes, so 2 h 45 min
In seconds: 2.75 × 3,600 = 9,900 s
A second example, from a timesheet: 7.4 hours is 7.4 × 60 = 444 minutes, which is 7 hours 24 minutes (0.4 × 60 = 24).
Hours to minutes conversion table
| Hours | Minutes | Hours and minutes |
|---|---|---|
| 0.1 | 6 | 6 min |
| 0.25 | 15 | 15 min |
| 0.5 | 30 | 30 min |
| 0.75 | 45 | 45 min |
| 1 | 60 | 1 h |
| 1.25 | 75 | 1 h 15 min |
| 1.5 | 90 | 1 h 30 min |
| 2 | 120 | 2 h |
| 2.5 | 150 | 2 h 30 min |
| 3 | 180 | 3 h |
| 4 | 240 | 4 h |
| 7.5 | 450 | 7 h 30 min |
| 8 | 480 | 8 h |
| 12 | 720 | 12 h |
| 24 | 1,440 | 24 h |
| 40 | 2,400 | 40 h |
Decimal hours on timesheets
Payroll systems usually store time in decimal hours because they are easy to multiply by an hourly rate. Every tenth of an hour is exactly 6 minutes, which gives a handy mental shortcut:
| Decimal | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
|---|---|---|---|---|---|---|---|---|---|
| Minutes | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 54 |
Quarter hours are 0.25 (15 minutes), 0.5 (30) and 0.75 (45). If a value like 1.30 appears, ask whether it means 1.3 decimal hours (1 hour 18 minutes) or 1 hour 30 minutes written with a dot; the difference adds up quickly over a pay period.
Common uses
- Project estimates. A task estimated at 0.75 hours needs a 45-minute calendar slot.
- Travel. A flight time of 3.2 hours is 3 hours 12 minutes.
- Exercise and study logs. Converting everything to minutes makes totals easy to add.
- Billing. Professionals who bill in 6-minute increments (0.1 hour) can convert minutes worked to billable tenths and back.
To go the other way, use the minutes to hours converter. For longer spans, the hours to days converter handles both 24-hour days and 8-hour workdays, and the decimal to time calculator formats decimal hours as clock time. To total a week of shifts, try the time card calculator.
Frequently asked questions
How many minutes are in an hour?
Sixty. To convert hours to minutes, multiply by 60: 3 hours × 60 = 180 minutes.
How many minutes is 1.5 hours?
90 minutes. Multiply 1.5 by 60, or think of it as 1 hour (60 minutes) plus half an hour (30 minutes).
How do I turn 2.75 hours into hours and minutes?
Keep the whole hours (2) and multiply the decimal part by 60: 0.75 × 60 = 45. So 2.75 hours is 2 hours 45 minutes, or 165 minutes in total.
Is 1.30 hours the same as 1 hour 30 minutes?
No. In decimal hours, 1.30 means 1 and 30/100 of an hour, which is 1 hour 18 minutes. One hour 30 minutes is 1.5 hours. Mixing the two formats is a common timesheet error.