8 units
Meter (m)
Centimeter (cm)
All categories
A unit converter changes a value from one unit to another, such as metres to feet or Celsius to Fahrenheit. Pick a category, type a value, choose the two units and read the result. The conversion runs in your browser, so nothing is uploaded. Currency is the one category that needs the daily reference rates from the European Central Bank.
16 categories · 98+ units100% OFFLINE
A row of chips at the top and a grid below list every category with its unit count. Pick one and the converter switches to it.
Type a value and choose the from and to units. Swap the two units with one button, and copy the result with the copy icon.
Below the converter, a list shows what the value equals in other units. Tap a row to set it as the target unit.
Currency uses the European Central Bank's daily reference rates and shows the date. If the rates feed is down, the Currency category is left out and the others keep working.
Choose Length, Mass, Temperature or any other category from the chips or the grid.
Type the value, then choose the unit you start from and the unit you want.
Read the answer, swap the units if you need the reverse, and copy it with one tap.
One page holds every unit category, so you do not need a new tool for each kind of measurement.
Check homework and lesson examples across length, mass and temperature.
Move between cups, grams, inches and centimetres without a search for each one.
Compare temperatures, distances and prices when you are abroad.
8 units
Meter (m)
Centimeter (cm)
All categories
Unit conversions run in your browser and do not upload anything. Currency needs the daily reference rates, so it needs a connection.
From the European Central Bank's daily reference rates. The category shows the date of the rates it uses.
Once a day, when the European Central Bank publishes its reference rates.
No. They are reference rates, not live market quotes. Use your bank's rate for a payment.
Press the swap button between the two fields, or choose a different unit from either menu.
Yes. Use the copy icon next to the result, or tap an equivalents row to set it as the target unit.
The chips and the grid list every category, each with its unit count.
The converter asks you to enter a number to convert.
Yes. On a phone the categories sit in a swipeable chip row and a two-column grid.
No. You can convert units without signing in.
Yes. It does not use credits.
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