Centimeters to Inches
One centimeter equals 0.393701 inches.
Inches = centimeters ÷ 2.54
By Piero Nanni · Last checked
Centimeters to Inches Calculator
1 Centimeters = 0.39370079 Inches
How to Convert Centimeters to Inches
Formula:
Inches = centimeters ÷ 2.54
Worked example:
10 centimeters ÷ 2.54 = 3.937 inches
Centimeters to Inches Conversion Table
| cm | in |
|---|---|
| 1 | 0.3937 |
| 1.5 | 0.5906 |
| 2 | 0.7874 |
| 2.5 | 0.9843 |
| 3 | 1.1811 |
| 4 | 1.5748 |
| 5 | 1.9685 |
| 6 | 2.3622 |
| 7 | 2.7559 |
| 7.5 | 2.9528 |
| 8 | 3.1496 |
| 9 | 3.5433 |
| 10 | 3.937 |
| 15 | 5.9055 |
| 20 | 7.874 |
| 25 | 9.8425 |
| 30 | 11.811 |
| 40 | 15.748 |
| 50 | 19.685 |
| 60 | 23.622 |
| 70 | 27.5591 |
| 75 | 29.5276 |
| 80 | 31.4961 |
| 90 | 35.4331 |
| 100 | 39.3701 |
| 150 | 59.0551 |
| 200 | 78.7402 |
| 250 | 98.4252 |
| 300 | 118.1102 |
| 400 | 157.4803 |
| 500 | 196.8504 |
| 600 | 236.2205 |
| 700 | 275.5906 |
| 750 | 295.2756 |
| 800 | 314.9606 |
| 900 | 354.3307 |
| 1000 | 393.7008 |
About This Conversion
Centimeters to inches shows up in clothing sizes, screen dimensions, luggage limits and furniture specifications. The relationship is exact by international agreement: one inch is 2.54 cm, so the conversion is a division by 2.54 with no approximation involved.
The trap is the output format. Inches are conventionally written in binary fractions, not decimals, so 15 cm is 5.906 in, which a tape measure would show as just under 5 15/16 in. If your result feeds into anything measured with an imperial tape, round to the nearest sixteenth rather than the nearest hundredth.
Frequently Asked Questions
How many inches is 1 cm?
One centimeter is 0.3937 inches. Dividing by 2.54 is the exact conversion.
How many inches is 30 cm?
30 cm is 11.811 inches, just under a foot.
What is 15 cm in inches on a tape measure?
15 cm is 5.906 in, which reads as roughly 5 and 15/16 inches on an imperial tape.
Is 2.54 an approximation?
No. Since 1959 the inch has been defined as exactly 2.54 centimeters, so the factor is exact.