Unit Converters

QuickToolz Unit Converters is a free collection of accurate, real-time converters for everyday and scientific use. Convert between metric and imperial units for length, weight, temperature, volume, area, speed, data storage, and energy — instantly, with no signup.

Why use our converters

Whether you are cooking with a recipe in cups, shipping a package internationally, planning a road trip across borders, sizing a hard drive, or working on a physics problem, our converters give you precise results with the exact decimal precision you need.

• Live, two-way conversion — type in either field

• Metric, imperial, US customary, and scientific units supported

• Clear unit symbols and SI definitions

• Mobile-friendly with large, tappable inputs

Common conversions

Convert miles to kilometers, pounds to kilograms, Fahrenheit to Celsius, gallons to liters, square feet to square meters, mph to km/h, gigabytes to megabytes, or joules to kilowatt-hours. Every conversion uses official SI definitions and rounded conventions appropriate for the unit.