Length Converter
Convert between cm, m, km, inch, ft, mile and more.
모든 단위 변환
Overview
Convert between meters (m), feet (ft), inches (in), centimeters (cm), yards (yd), miles (mi), and more in real time. Supports both SI (metric) and US/Imperial customary units.
Formula
1 m = 3.28084 ft = 39.3701 in 1 ft = 0.3048 m = 12 in 1 in = 2.54 cm 1 yard = 0.9144 m = 3 ft 1 mile = 1.60934 km = 5280 ft 1 km = 1000 m
How to Use
- 1Enter the length value you want to convert.
- 2Select the source unit (e.g., m, ft, in).
- 3Select the target unit.
- 4View the converted result instantly.
Tips
- ✔For height conversion, 170 cm equals roughly 5 ft 6.93 in.
- ✔In construction, feet and inches are standard, so pay attention to decimal precision when converting to meters.
- ✔Clothing sizes from US retailers often use inches -- convert to cm for accurate sizing.
- ✔A quick mile-to-km estimate: multiply miles by 1.6.
FAQ
Q. How many centimeters are in one foot?
One foot is exactly 30.48 centimeters. This comes from 1 ft = 12 in and 1 in = 2.54 cm.
Q. Why does the US use feet and inches instead of metric?
The US uses US customary units, which evolved from English units. While most countries adopted the metric system, the US retained its traditional system for everyday measurements.
Q. Is there a quick way to convert miles and kilometers?
Multiply miles by 1.6 to get approximate kilometers, or multiply kilometers by 0.6 to get approximate miles.
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