Length Converter

Convert length between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.

InputsChange a value to recalculate instantly

Length

Conversion factor

ResultUpdates as you type

Converted length1

How it worksTransparent math

FormulaOutput=Value×Factor

Converts the input by multiplying it by the supplied target-per-source unit factor.

Result breakdownSee the important numbers together

1Converted length1

λ DooMathWork with this calculation

Local · deterministic · optional

auto_awesome

Quick mathNatural-language-style shortcuts for deterministic arithmetic.

Calculator guide

How to use the Length Converter

Convert length between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.

01Set inputsChoose values, units and assumptions.

02Apply the modelconverted = value × source unit / target unit

03Read the resultCheck the output against the assumptions before using it.

menu_book

Convert length between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.

functions

converted = value × source unit / target unit

fact_check

Review the inputs, units and assumptions before using the result for a real decision.