Centimeters to Inches Converter
Convert centimeters to inches instantly. Type any cm value and see the exact inch equivalent. Includes a common values table, formula, and height conversion examples.
Inches (in)
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Common Centimeters to Inches Conversions
| centimeters (cm) | inches (in) | Note |
|---|---|---|
| 1 cm | 0.39 in | 1 cm |
| 5 cm | 1.97 in | 5 cm |
| 10 cm | 3.94 in | 10 cm |
| 30 cm | 11.81 in | 30 cm |
| 100 cm | 39.37 in | 1 m |
| 150 cm | 59.06 in | 4 ft 11 in |
| 160 cm | 62.99 in | 5 ft 3 in |
| 170 cm | 66.93 in | 5 ft 7 in |
| 180 cm | 70.87 in | 5 ft 11 in |
| 190 cm | 74.8 in | 6 ft 3 in |
The Centimeters-to-Inches Formula
To convert centimeters to inches, divide by 2.54 (or equivalently multiply by 1 ÷ 2.54 ≈ 0.393701). The relationship is exact: 1 inch is defined as exactly 2.54 cm, so 1 cm = 1/2.54 inches = 0.393701 inches. For example, 30 cm ÷ 2.54 = 11.81 inches. For quick mental math, multiply centimeters by 0.4 — this gives an answer within 1.6% of the exact value, which is sufficient for most everyday estimates.
Converting Height from Centimeters to Feet and Inches
Height is commonly expressed in centimeters outside the US and in feet and inches within the US. To convert height: first divide centimeters by 2.54 to get total inches, then divide by 12 and take the whole number for feet, and use the remainder for inches. Example: 175 cm ÷ 2.54 = 68.9 inches total. 68.9 ÷ 12 = 5 feet with 8.9 inches remaining — so 175 cm ≈ 5 feet 9 inches. Common heights: 160 cm ≈ 5'3", 170 cm ≈ 5'7", 180 cm ≈ 5'11", 190 cm ≈ 6'3".
Where Centimeters and Inches Are Each Used
Centimeters are the standard unit for height measurement in medicine, science, and everyday use in most countries. In the US, height is almost always expressed in feet and inches, but clothing size charts and import product specifications often provide centimeter measurements as well. Screen and television sizes are nearly universally quoted in inches by diagonal — even in metric countries — while panel resolution and pixel pitch are specified in millimeters or micrometers. Tape measures sold in the US typically show both units on opposite edges.
Frequently Asked Questions
How many inches is 1 centimeter?
1 centimeter equals approximately 0.3937 inches, or about 25/64 of an inch. Since 1 inch = exactly 2.54 cm, 1 cm = 1 ÷ 2.54 = 0.393701 inches.
How do I convert centimeters to feet and inches?
Divide centimeters by 2.54 to get total inches, then divide by 12 to separate feet from remaining inches. Example: 170 cm ÷ 2.54 = 66.93 inches = 5 feet 6.93 inches ≈ 5'7".
What is 100 centimeters (1 meter) in inches?
100 cm = 39.37 inches, which is approximately 3 feet 3.37 inches. 1 meter = 100 cm = 39.3701 inches exactly.
What is the quick way to estimate cm to inches in my head?
Multiply centimeters by 0.4 (or divide by 2.5). This gives a result within about 1.6% of the exact answer — close enough for most everyday estimates. For example, 80 cm × 0.4 = 32 inches (exact: 31.5 inches).