Centimetres to Inches: The Complete Guide
Centimetres (cm) and inches (in) are the two most commonly used units for measuring height, clothing sizes, screen dimensions, and small distances. The US uses inches; most other countries use centimetres. This conversion comes up constantly in everyday life.
The Conversion Formula
inches = centimetres ÷ 2.54
One inch is defined as exactly 2.54 centimetres — this is exact by international definition, not an approximation.
Quick Reference Table
- 1 cm = 0.394 in
- 10 cm = 3.937 in
- 30 cm = 11.81 in (≈ 1 foot)
- 100 cm = 39.37 in (≈ 3 feet 3 inches)
- 150 cm = 59.06 in (4 feet 11 inches)
- 180 cm = 70.87 in (5 feet 11 inches)
Height Conversion Reference
- 152 cm = 5'0"
- 160 cm = 5'3"
- 170 cm = 5'7"
- 175 cm = 5'9"
- 180 cm = 5'11"
- 183 cm = 6'0"
- 190 cm = 6'3"
Clothing and Screen Sizes
TV and monitor sizes are universally quoted in inches diagonally. Clothing waist, chest, and inseam measurements in US brands use inches. Shoe sizes involve a separate system but overall foot length is often given in cm vs. inches for international comparisons.
Convert any length instantly: Free cm to inches converter