Oneca - Ultimate Unit Conversion Calculator

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Oneca is the one calculator app you can use to efficiently and accurately convert between a variety of different units. From distances to computer memory sizes and quite a bit in between, Oneca can help you quickly get your data into the unit you need.

Here are just some of the units you can use Oneca to convert between:

Distance/Area - centimetres, metres kilometres, inches, feet and miles.

Speed - kilometres per hour, miles per hour, metres per second

Temperature - celcius, fahrenheit, kelvin

Weight - pound, kilogram, gram

Scientific - from femto to peta

Cooking - cups, teaspoons, fl. oz, millilitres

And more consistently added!

Oneca works directly on your device, and needs no internet connection to work. You don't have to buy any extra units either, as everything shown is included for free.