Giga Useful ToolsUnit converter: the calculator missing from your phone
Kilos to pounds, Celsius to Fahrenheit, liters to gallons. Four conversion categories in one place, without looking up the formula every time.
Converting units by hand works right up until it doesn't: you probably remember that kilos times 2.2 gets you pounds, but what about the Celsius to Fahrenheit formula? That's where most people end up searching it on Google again, every single time.
Four categories, one place
The converter covers Length (millimeters to miles), Weight (milligrams to tonnes), Volume (milliliters to gallons), and Temperature (Celsius, Fahrenheit, Kelvin), which together cover the vast majority of everyday conversions: a recipe, a piece of furniture you need to measure, or figuring out what that Fahrenheit reading in an app actually means.
Why temperature behaves differently
Length, weight and volume all convert by multiplying by a fixed number, but temperature doesn't work that way: 0°C isn't "nothing," unlike 0 grams. So the converter uses the actual Celsius, Fahrenheit and Kelvin formulas instead of a simple multiplier, so the result is always exact.
- Pick a category: Length, Weight, Volume, or Temperature.
- Type the value you want to convert.
- Choose the "from" and "to" units.
- The result updates instantly as you type or switch units.
If you need something beyond converting units, Giga Useful Tools has over thirty free tools in the same spirit, all with no signup.