Math

Unit Converter

Unit converter: quickly convert between common units of length, weight (mass), and temperature.

A quick tool for everyday unit conversions without memorizing factors. Pick a category, enter a value, and choose your source and target units.

Frequently asked questions

Are the conversions accurate?

Yes. We use standard international conversion factors (metric and imperial). Results are shown to up to six decimal places.

How do I convert Celsius to Fahrenheit manually?

Multiply the Celsius value by 9, divide by 5, then add 32. Example: 25°C = (25×9÷5)+32 = 77°F.