AtlasCalc📏 ConversionbeginnerOffline
Length Converter
Convert between metric and imperial units of length/distance.
Inputs
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Result
Your answer appears here.
Enter values and press Calculate — the result appears here.
How it works
The formula behind this calculator.
1 m = 3.28084 ft = 39.3701 in; 1 km = 0.621371 mi
- value, from, to
- Source value and unit
Length conversions use fixed ratios. The metric system is decimal; imperial uses historical units that don't divide evenly.
Example: 1 mile = 1.609344 km; 1 foot = 0.3048 m
Ref: NIST Handbook 44 (Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices)
Tips
- 💡 1 mile = 1.609344 km exactly. 1 inch = 25.4 mm exactly.
- 💡 For height, 1 foot = 30.48 cm.