Check Amount to Words Converter

What Is This Tool?

Checks require the amount written twice: once in numerals (in the small box) and once spelled out in words (on the long line). The written-out version exists specifically to prevent fraud — a numeral is trivial to alter, but altering a fully spelled-out phrase without it looking tampered with is far harder. Banks follow the written words as authoritative if the two ever disagree.

The convention differs from how you'd normally spell out a number: whole dollars are written in words, but cents are written as a fraction over 100 (e.g. "99/100"), not spelled out — writing "and ninety-nine cents" instead of "and 99/100" is technically non-standard, even though most tellers would still accept it.

Under U.S. law the words are what count: Uniform Commercial Code § 3-114 provides that when the numeric amount and the written-out amount on a check disagree, the words control. That is why banks care far more about the written line than the little box.

Why Use It?

• Produces the exact convention banks expect — cents as a /100 fraction, not spelled out.
• Works for Dollars, Pounds and Euros.
• Optional "Only" suffix — a common practice that closes off the line against tampering.
• Handles amounts up to nearly a trillion, in case you ever need it.
• Free, instant, no account, runs entirely in your browser.

How to Use

1. Enter the numeric amount (e.g. 1688.99).
2. Choose the currency label (Dollars/Pounds/Euros).
3. Optionally check "Append Only" if you want the fraud-prevention convention.
4. Copy the result and write it on the amount line of your check.

Example

Input

1688.99

Output

One Thousand Six Hundred Eighty-Eight and 99/100 Dollars

Note the cents are written as "99/100", not spelled out as "ninety-nine cents" — this is the standard check-writing convention.

Practical tips for writing the amount line

• For a whole-dollar amount with no cents, still write the fraction as "and 00/100" (e.g. "Two Hundred and 00/100 Dollars") rather than leaving it off — an amount line without the /100 fraction can read as incomplete to a teller and invites someone adding cents after the fact.
• Start the words hard against the left edge of the line and let the tool's optional "Only" suffix close off the right edge — the two together leave no blank space on either side for anything to be inserted.
• "And" belongs exactly once, between the dollar words and the cents fraction — not between hundreds and tens ("One Hundred and Twelve" is common spoken English but technically redundant on a check; banks don't reject it, but the cleanest convention places it only before the fraction).
• If you make a mistake, void the check and rewrite it rather than crossing out and correcting the amount — most banks refuse to honor a check with an altered amount line, numerals or words.

Not the same as other countries' amount-in-words rules

This US/UK/EU convention — dollar amount spelled in words, cents as a /100 fraction — is specific to how English-language checks work. It's a different system entirely from, for example, mainland Chinese financial documents, which require amounts in Chinese uppercase numerals (壹, 贰, 叁...) instead of Arabic digits, for the same anti-fraud reason but a completely different alphabet and rule set.

If you're filling out a US-style check, a money order or a cashier's check, this converter's output applies directly. If you're instead filling out a Chinese bank document, invoice or contract that requires 大写 numerals, you need the separate RMB uppercase conversion, since the two formats aren't interchangeable.

→ Chinese Numeral Currency Converter

Frequently Asked Questions