Guides to writing numbers in words.

Practical, in-depth articles on cheques, the Indian numbering system, currency formatting and spreadsheet conversion — the details that matter when the words have to be exactly right.

Indian banking & cheques

How to write a cheque amount without errors — the eight checks that stop a cheque bouncing.
Why cheque amounts end with the word "Only" — the anti-fraud reason and how to use it.
Lakh and crore, explained — how the Indian scale and commas work.
Common cheque mistakes that cause rejection · coming soon
Writing rupee amounts on a GST invoice — the lakh format, paise and rounding.
Demand draft vs cheque: how the wording differs · coming soon
Writing salary and rent amounts in words — leases, slips and receipts.
Reading large numbers in Indian financial news · coming soon

Currency, grammar & style

Using "and" in number words: US vs UK — when it belongs and when it doesn't.
How to write a US check correctly — the six fields and the and XX/100 cents rule.
When to spell numbers vs use digits — the style rules that matter.
Writing numbers in legal contracts — why words and figures appear together.
Cents and pence: formatting the fractional part · coming soon
"Fifteen hundred" vs "one thousand five hundred" — when each form is right.
Short scale vs long scale: billion around the world · coming soon

Spreadsheets & developers

Troubleshooting SpellNumber in Excel — fixing #NAME?, decimals and large numbers.
Converting a whole column of invoice amounts · coming soon
Number-to-words across programming languages · coming soon
Rounding and floating-point pitfalls · coming soon
Ordinal numbers (1st, 2nd, 3rd) in words · coming soon
Numbers in words for accessibility and screen readers · coming soon

Quick reference & conversions

How many zeros in a lakh, crore, arab? — the exact zero count for every scale term.
1 million in lakhs and crores — converting between international and Indian figures.
How to write 1 lakh, 5 lakh, 1 crore in words — common rupee amounts spelled out.
How to write a million, billion and trillion in numbers — zeros, figures and the Indian equivalent.
Converting numbers to words in a Word document — three ways to do it in Microsoft Word.

Fifteen guides are published below; the rest are being written and added in batches. Each one answers a distinct question rather than repeating the converters.