Ensure
Number & Math

Unit Converter

Convert length, mass, temperature and digital storage units.

All units

Millimetre1000
Centimetre100
Metre1
Kilometre0.001
Inch39.370079
Foot3.2808399
Yard1.0936133
Mile0.00062137119
Nautical mile0.0005399568

Guides that cover this

Number bases, byte sizes and the units people argue aboutHow hex maps onto bits, why a 1 TB drive shows as 931 GB, what 0.1 plus 0.2 actually equals, and how rounding, percentages and locale formatting quietly change a number.

Related tools

Sum and Average
Add up a list of numbers and see the mean, median and spread.
Number & Math
Number to Words
Write a number out in words, as a cardinal or an ordinal.
Number & Math
Number Sequence
Generate arithmetic, geometric, Fibonacci, prime and square sequences.
Number & Math
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.
Number & Math