Unit converter app · iOS & AndroidYour day,
converted.
A unit converter app with a calculator and a currency converter inside: type the number, even as a sum like 2×125, and read it in every unit at once, metric and imperial. Instantly. Offline. Exactly.
Made by Olivier, one developer who answers every message. Free, no account.
Whatever the day throws at you.
A recipe in cups,
a scale in grams.
Doubling a recipe? Type 2 × 125 g straight into the field and read it in every unit at once. The maths happens where you look, no clearing, no second app. And the flour chart turns cups into grams at a glance.
- Cups, grams, ouncesYES
- Every unit at onceYES
- Works fully offlineYES
A price abroad,
in your own money.
163 currencies at live rates, each with its flag — and they keep working from the last sync when you're offline in a new city.
- 163 currenciesLIVE
- Offline fallbackYES
Quick answers, full charts.
Each of these has a full chart on the blog, and the app answers it offline in one tap.
A unit converter app that works offline
Most conversions happen away from a desk: in the kitchen, at the airport, in a shop abroad. This unit converter app keeps 372 units in 46 categories and 163 live currencies on your phone, and every unit conversion works offline, with no account to create.
It is free on iPhone and Android. Type a value once and the measurements line up in metric and imperial at the same time: grams and cups, centimetres and inches, °C and °F. When a recipe or a bill needs a sum first, the calculator sits in the input field, so the unit converter app does the maths and the conversion in one go.
In their own words.
Typed "2ft6" on a job site and had centimetres before my tape measure was even out.
Cups to grams while cooking, sizes while shopping abroad — it quietly replaced three apps.
Live currency rates are spot on, and offline mode saved me roaming fees twice already.
Tomorrow will ask again.
Be ready.
Free. No account. Works offline.