Inch Calculator & Measurement Guide
Inch Converter Calculator
1 inch = 2.54 centimeters
2.54 cm
0.0254 m
0.0833 ft
0.0278 yd
What is an Inch?
An inch is a unit of length in the imperial and US customary measurement systems. One inch is exactly equal to 2.54 centimeters by international agreement since 1959.
Common Uses
- Construction and carpentry measurements
- Screen sizes (TVs, monitors, phones)
- Paper sizes and dimensions
- Plumbing and pipe diameters
Historical Background
The inch originated from the width of a human thumb and was standardized as 1/12 of a foot in the Roman measurement system. The word "inch" comes from the Latin "uncia," meaning one-twelfth.