Centimeters to Inches
Convert centimeters (cm) to inches instantly.
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| Centimeters (cm) | Inches (in) |
|---|---|
| 1 cm | 0.393701 in |
| 5 cm | 1.968504 in |
| 10 cm | 3.937008 in |
| 30 cm | 11.811024 in |
| 50 cm | 19.685039 in |
| 100 cm | 39.370079 in |
| 150 cm | 59.055118 in |
| 180 cm | 70.866142 in |
| 200 cm | 78.740157 in |
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Centimeters vs inches: two systems, one world
The centimeter is one hundredth of a meter, the SI base unit of length. It is used for everyday measurements in metric countries — body height, screen sizes, clothing dimensions, and construction.
The inch was historically defined as the width of a thumb, then standardized in various ways across cultures. Since 1959, one international inch is defined as exactly 2.54 centimeters — making the conversion precise and exact.
Common reference points: a standard credit card is 8.56 cm (3.37 inches) wide. A typical door is 200 cm (78.7 inches, or about 6 feet 7 inches) tall. Screen sizes on monitors and TVs are always measured diagonally in inches, even in metric countries.
Frequently asked questions
How many inches in a centimeter?
One centimeter equals 0.3937 inches.
What is 180 cm in inches?
180 cm equals approximately 70.87 inches, or 5 feet 10.87 inches.