Number & Math

Sum and Average

Add up a list of numbers and see the mean, median and spread.

Decimal places

Numbers

Separated by anything: spaces, commas, or new lines

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

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

Convert length, mass, temperature and digital storage units.

Number & Math