Stefan Judis • 4/6/2026

Intl can localize units, too! (#tilPost)

This article explains how JavaScript's Intl.NumberFormat API can format numbers with localized currencies and units, such as EUR, JPY, and kilometer-per-hour. It demonstrates code examples for German, Japanese, Portuguese, and French locales, highlighting automatic symbol placement and unit translation. The post advises against implementing custom currency/unit logic in userland JavaScript, as the built-in API handles localization. It also provides a link to a list of supported units. This is a technical tutorial for web developers interested in internationalization.

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#JavaScript #Localization #Unit