Number to Words Converter

Convert any number to its written word form for academic writing.

Enter a Number

Quick Examples

1one
12twelve
25twenty-five
100one hundred
365three hundred sixty-five
1,000one thousand
15,000fifteen thousand
1,000,000one million
1,000,000,000one billion

Style Guide Rules

APA — Spell out 1–9; use numerals for 10+
MLA — Spell out numbers in a few words; numerals otherwise
Chicago — Spell out 1–99; use numerals for 100+
Always spell out a number that begins a sentence.

Supported Range

Converts integers and decimals from negative trillions to positive trillions.

Frequently Asked Questions