Number to Words Converter

Spelling a number out means writing it the way you would say it: the figure 1,250 becomes one thousand two hundred fifty. You do it constantly without thinking — on checks, in contracts, on invitations, in legal documents — anywhere the words have to back up the digits so the amount can’t be misread or altered.

English names numbers in groups of three digits, from the right. Master four small building blocks and you can spell any number in the world.

1. 1

   The ones, teens, and tens

   Zero through nineteen each has its own word. From twenty up, the tens (twenty, thirty …) combine with a ones word using a hyphen.

   47 = forty-seven
2. 2

   The hundreds

   A leading digit plus the word hundred, then whatever the last two digits spell out. No “and” is needed in American usage.

   358 = three hundred fifty-eight
3. 3

   Group in threes, add a scale word

   Split the number into three-digit groups from the right. Name each group, then tag it with thousand, million, billion, and so on.

   2,400,000 = two million four hundred thousand
4. 4

   Handle the decimal and the sign

   In plain words a decimal is read digit by digit after “point”. In money it becomes two-place cents. A minus sign becomes the word negative.

   −3.5 = negative three point five

This is the reason most people look up “number to words”. The amount line of a check has its own grammar — get it right and the bank pays exactly what you intend. For the full walkthrough see our guide to writing a check, and for the cents-as-a-fraction idea, our fraction-to-decimal converter.

The same number, shown in plain words and in check format, across the situations people actually run into.

The amounts people most often need to spell — in words and in the form you write on a check. The fast answer to “how do I write $750 in words?” without typing.

Spelling numbers out is rarely decorative — it is usually there to make an amount tamper-proof or unambiguous.

A handful of conventions that keep spelled-out numbers correct and tamper-proof.

The errors that get checks bounced and contracts questioned — and how to avoid each one.

Common questions