Check Writing Calculator
| Amount | Words line |
|---|---|
| $105 | one hundred five and 00/100 dollars |
| $1,500 | one thousand five hundred and 00/100 dollars |
| $23.40 | twenty-three and 40/100 dollars |
A check carries the same amount twice - once in digits, once in words - and when the two disagree, banks are legally bound to honor the words. That legal line has its own grammar, and this calculator writes it for you: the dollar words, the fraction for cents, and the trailing dash that stops anyone adding to your amount.
Bottom line: type the amount and copy the line - one thousand two hundred thirty-four and 56/100 dollars. The word 'and' appears exactly once, before the cents fraction; writing 'one hundred and five' for $105 is the classic error. Fill the remaining space with a long dash so the amount cannot grow a few extra hundred.
The honest part: the words line is a security feature, not a formality. Checks are one of the few instruments where spelling beats arithmetic, which is why the digits box should match it exactly - $1,234.56 - and why 'covers' language on the memo line never overrides either. Write the words close to the printed 'Dollars' text so no gap exists to exploit.
How to use
- Type the amount in digits - the calculator renders the legal line instantly, with the cents as a fraction over 100 exactly as banks read them.
- Copy the words onto the check's second line (the one ending in 'Dollars'), starting as far left as the line allows, and draw a line from your last word to the printed 'Dollars' if any bare line remains.
- Enter the same figures in the digits box ($1,234.56, comma and cents), then sign - the signature is what authorizes; the words are what protects.
Frequently asked questions
How do you write $1,500 on a check?
One thousand five hundred and 00/100 dollars - or the cleaner one thousand five hundred dollars with 00/100 trailing. Never write fifteen hundred on the legal line: it is understood, but the formal register is what tellers and courts read, and a mixed-scale amount invites questions. Draw the protective dash from your last word to 'Dollars'.
Where does the word 'and' go in a check amount?
Only before the cents fraction: two hundred forty and 50/100. The British-style 'two hundred and forty' inserts a second 'and' that American check grammar reserves for the decimal point - it will still clear, but strict reviewers flag it, and if the words ever conflict with the digits in court, ambiguity is what the dispute is about.
What happens if the words and numbers on a check differ?
The written words control - Uniform Commercial Code Section 3-114 says terms spelled out outweigh figures. A check reading $100 in digits but 'one thousand' in words is legally a thousand-dollar check, which is exactly why careful writers fill the leftover space with a dash: the words line is where tampering pays.
Do I have to write the cents as a fraction?
The standard form is xx/100 - fifty-six and 00/100 - because the slash-and-fraction format is what the banking system standardized on, and it reads unambiguously. Writing 'fifty-six cents and no dollars' also works but wastes the fraction convention; what you must never do is leave the cents blank after a whole-dollar amount, because a copied zero turns $50 into $500.