Finnish Number to Words in JavaScript (fi-FI)

Use fi-FI when your application needs Finnish number words for invoicing, checkout flows, or legal documents that print totals in full words.

Locale codes: fi-FI · Numbering system: Short scale · Currency: Euro / Sentti · Script: Latin

Install

npm install to-words

Basic Conversion

import { ToWords } from 'to-words';

const tw = new ToWords({ localeCode: 'fi-FI' });

tw.convert(100);
tw.convert(1000);
tw.convert(1000000);

Currency - Euro / Sentti

tw.convert(1234.56, { currency: true });
tw.convert('500.00', { currency: true, includeZeroFractional: true });

Ordinal Numbers

tw.toOrdinal(1);
tw.toOrdinal(10);
tw.toOrdinal(100);

Locale Codes

Locale code	Country	Currency	Notes
fi-FI	Finland	Euro / Sentti	Standard Finnish number wording

Related

• Currency guide
• Ordinal guide
• Estonian
• Norwegian
• Swedish
• All locales

FAQ

Q: Which locale code should I use for Finnish number-to-words output? Use fi-FI.

Q: Does to-words support Finnish ordinal words? Yes. fi-FI includes ordinal mappings so toOrdinal() works without any custom suffix logic.