2 inches at a glance
- Centimeters
- 5.08 cm
- Millimeters
- 50.8 mm
- Meters
- 0.0508 m
- Feet & inches
- 2 in (under 1 ft)
- Feet (decimal)
- 0.1667 ft
- Nearest whole cm
- 5 cm
How to convert 2 inches to cm
cm = inches × 2.54
2 × 2.54 = 5.08 cm
2 × 2.54 = 5.08 cm
Because the inch is defined as exactly 2.54 cm, 5.08 cm is exact — no rounding involved. To do it in your head, split 2.54 into 2.5 + 0.04: 2 × 2.5 = 5 and 2 × 0.04 = 0.08, which add up to 5.08.
Fractions of an inch around 2 in
Tape measures between 2 and 3 in are marked in eighths. Each eighth adds 3.175 mm:
| Inches | Centimeters | Millimeters |
|---|---|---|
| 2 | 5.08 | 50.8 |
| 2 1/8 | 5.3975 | 53.975 |
| 2 1/4 | 5.715 | 57.15 |
| 2 3/8 | 6.0325 | 60.325 |
| 2 1/2 | 6.35 | 63.5 |
| 2 5/8 | 6.6675 | 66.675 |
| 2 3/4 | 6.985 | 69.85 |
| 2 7/8 | 7.3025 | 73.025 |
2 inches in real life
- Rain and snow. 2 in of rain is 50.8 mm. 2 in of fresh snow holds about 0.2 in (5.08 mm) of water at the commonly quoted 10-to-1 ratio, though wet snow holds more and powder less.
- Lumber. A “2 × 4” is a nominal size: the planed board actually measures 1½ × 3½ in (3.8 × 8.9 cm).
Objects of a similar size
- About the same as the length of an AA battery, 5.05 cm (1.99 in).
- 6% shorter than the short side of a credit card, 5.4 cm (2.13 in).
- 19% longer than the minimum diameter of a golf ball, 4.27 cm (1.68 in).
Inches near 2 in
| Inches | Centimeters | Feet & inches / mm |
|---|---|---|
| 1 in | 2.54 cm | 25.4 mm |
| 2 in | 5.08 cm | 50.8 mm |
| 3 in | 7.62 cm | 76.2 mm |
| 4 in | 10.16 cm | 101.6 mm |
| 5 in | 12.7 cm | 127 mm |
| 6 in | 15.24 cm | 152.4 mm |
| 7 in | 17.78 cm | 177.8 mm |
Going the other way: 5 cm to inches is 1.97 in.
Frequently asked questions
How many cm is 2 inches?
2 inches is exactly 5.08 cm, because one inch is defined as 2.54 cm.
What is 2 inches in mm?
2 in = 50.8 mm (multiply by 25.4).
What is 2 ½ inches in cm?
2.5 in × 2.54 = 6.35 cm.
Is 2 inches the same as 5 cm?
Not quite: 2 in is 5.08 cm, so 5 cm is 0.8 mm too short — close enough for most everyday measuring.