Tap into the desired category, then tap the correct unit -- so if you want to convert grams for a recipe, tap Weight then Gram. Once you pick the unit, you'll be taken back to the main Calculator ...

For example, speed is made up of distance and time. To convert the units of compound measures, convert the individual units separately. The maximum speed of a racing car is 340 km/h. Convert this ...

Multiply the number of centimetres by the conversion factor. Check the answer - should it be smaller or larger than the original number? Units of length can be converted between imperial and ...