Length Converter (Inch/CM)
Convert Metric (cm) and Imperial (in) units instantly.
Length Converter
Enter a value below to convert automatically.
How many cm is 1 inch?
1 inch is exactly 2.54cm.
TV screen sizes or waist sizes, why do we still use inches?
History of Length Units
Inch comes from 'uncia' (1/12) and was historically based on thumb width. Centimeter is a scientific unit defined based on the Earth's circumference.
- 1 Inch (in) = 2.54 Centimeters (cm)
- 1 Centimeter (cm) ≈ 0.3937 Inches (in)
Common Conversions
Height
180 cm ≈ 5 ft 11 in (70.8 in)
160 cm ≈ 5 ft 3 in (63 in)
Screen Size
13-inch (Laptop) ≈ 33 cm
27-inch (Monitor) ≈ 68.6 cm