UnitJuggler – unit and currency converter

Convert measurements and prices on any page: select 350°F, hover over a price, or turn a recipe metric. No tracking.

Convert measurements and prices right where you read them. Select “350°F” and see 176.7°C beside it, point at “$49.99” to see it in your currency, or turn a whole American recipe metric with one click, and back again. UnitJuggler brings the converter of unitjuggler.com into Chrome: more than 700 units and currencies, 113 specialty calculators, and 28 languages. ON ANY PAGE • Selection bubble: select a measurement such as 350°F, 5'11" or 2 cups, and a small bubble shows it in your units. Click it for more units, a picker with every unit of the quantity, copy buttons and a link to the full table on unitjuggler.com. • Prices on hover: point at a price and see it in your own currency, at the European Central Bank's daily reference rate. Prices that shops split over several elements are read whole. • Whole-page conversion: every measurement on the page is written in your units next to the original, “Bake at 350°F (176.7°C)”, and highlighted. Content that loads later is converted too, and Undo restores the page exactly. Use the toolbar button, the right-click menu or Alt+Shift+U, and choose “Always on this site” for the sites you read often. • Right-click menu: “Convert … with UnitJuggler” on any selected text, including values the automatic bubble is too careful to guess at, such as “5 A”. IN THE TOOLBAR AND THE ADDRESS BAR • Converter popup (Alt+Shift+J): type “5 km in mi”, “20 USD to EUR”, “0x1F” or “MMXXVI” and the answer appears as you type, with every unit of the quantity one click away. • Favourites: pin a conversion with the star and it stays on the popup's first screen as a live converter. • Address bar: type uj, a space and a conversion, and the answer appears in the suggestions. Calculator names work too: “uj espresso”. • 113 calculators for coffee, brewing, 3D printing, cycling, photography, dates and more, searchable from the popup. YOUR UNITS Choose metric, US customary or UK imperial (metric, but miles, mph, pints and stones). UnitJuggler starts from your browser's language; change it at any time, together with your currency, the precision and how page conversion writes its results. CAREFUL WITH YOUR PAGES UnitJuggler only converts what is clearly a measurement: “5 in the morning” is not inches, “12 pt” is a font size, and “A4” or “12:30” are left alone. Page conversion changes text only, never a page's layout or scripts, and stays out of code, forms and editable fields. PRIVATE BY DESIGN • Pages are read only inside your browser. Nothing about the pages you visit is sent anywhere. • No account, no analytics, no ads, no tracking, and no code loaded from elsewhere. • The only network request fetches the European Central Bank's public exchange rates, at most every six hours, and you can switch it off. • Settings and favourites sync with your Chrome profile; recent conversions stay on your computer. LANGUAGES Arabic, Bengali, Chinese (Simplified), Croatian, Czech, Dutch, English, Finnish, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Persian, Polish, Portuguese, Russian, Spanish, Swedish, Thai, Turkish, Ukrainian and Vietnamese. Typed conversions are understood in your language as well as in English. Privacy policy: https://www.unitjuggler.com/site-privacy.html#extension