Settings & languages

OtterCalc bends to how you like to see numbers and the language you think in. Open Settings from the gear in the top bar. Everything there is a personal display preference: it changes how results look to you, never the document itself, so anything you share still means the same for everyone who opens it.

What you can change

Theme switches between System, Light, and Dark. Language flips the whole app between English, Spanish and French. Result decimals sets the digits after the dot, from a tidy 0 to a precise 10. Thousands separators group big numbers so 1000000 reads as a million at a glance. Compact large numbers shows 100k or 1.2M instead of the long form. And editor text size (Small, Medium, Large) makes the notepad comfortable on any screen. Change any of them and every result on the page updates at once.

Think in English or Spanish

Write your calculations in either language, and switch whenever you like. In Spanish, dates read naturally (hoy, mañana, próximo viernes, 10 de junio), conversions use "a" and "en" (5 kilometros a millas, 2000 USD en EUR), charts are tarta, barras and línea, cities are localized (nueva york, tokio), and big numbers follow the long scale, so 1 billón is a million millions. However you write it, the answer comes back in the language and format you have chosen.

One document, every reader

Behind the scenes, a document stores exactly what you typed, while results are rendered fresh for whoever is looking, unit names included: the same document shows 1,234.56 and 4,500 EUR / month to you and 1.234,56 and 4.500 EUR / mes to a Spanish reader, with error messages in each reader’s language. Numbers written the English way mean the same thing to everyone; the Spanish and French forms (1.200,50) are read in the interface language of whoever opens the document, see Basics. Custom exchange rates travel inside the document, so a conversion reproduces to the cent no matter who opens it. See Sharing for links and forking.