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Numbers 0 to 100 and Powers of Ten in English Words

By Numbrate · Updated 2026-10-23

A compact cheat sheet for the building blocks of every English number word.

Zero to nineteen

0 zero5 five10 ten15 fifteen
1 one6 six11 eleven16 sixteen
2 two7 seven12 twelve17 seventeen
3 three8 eight13 thirteen18 eighteen
4 four9 nine14 fourteen19 nineteen

The tens

20 twenty50 fifty80 eighty
30 thirty60 sixty90 ninety
40 forty70 seventy100 one hundred

Spelling traps: forty has no u (unlike four and fourteen), fifteen and fifty use f, not v, and eighty has only one t after the g.

Everything in between

Join a tens word and a units word with a hyphen: 21 twenty-one, 38 thirty-eight, 99 ninety-nine.

Powers of ten (short scale)

PowerZerosName
1033thousand
1066million
1099billion
101212trillion
101515quadrillion
101818quintillion
102121sextillion
102424septillion
102727octillion
103030nonillion
103333decillion

Numbrate accepts whole numbers of up to 36 digits, so it can write numbers well beyond a decillion. Other languages use their own names for these scales; see long scale vs short scale.

Frequently asked questions

What comes after trillion?

Quadrillion, then quintillion, sextillion, septillion, octillion, nonillion and decillion in the short scale.

How many zeros are in a billion?

Nine zeros in the short scale: 1,000,000,000.

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