Free Unit Converter – Convert Units Instantly
Use this free unit converter to switch between hundreds of units. Length, weight, temperature, area, volume, speed, time, data, pressure, energy — all right here. No sign‑up, just accurate results in your browser.
How to Use This Free Unit Converter
This free online unit converter is simple: pick a category, type a number, and choose your start and target units. The conversion appears instantly. It’s perfect for homework, cooking, travel, and DIY projects.
Supported Conversion Types
- Length. Feet to meters, inches to cm, miles to km, and more.
- Weight. Pounds to kilograms, ounces to grams, tons to metric tons.
- Temperature. Fahrenheit to Celsius, Celsius to Kelvin.
- Area. Square feet to square meters, acres to hectares.
- Volume. Gallons to liters, cups to milliliters, fluid ounces.
- Speed. MPH to KPH, knots, and meters per second.
- Time. Hours to minutes, days to seconds, weeks to months.
- Data Storage. Bytes to kilobytes, megabytes, gigabytes, terabytes.
- Pressure. PSI to bar, pascal, atmosphere.
- Energy. Joules to calories, kilowatt‑hours, BTU.
Step by Step
- Choose a category. Click one of the tabs — Length, Weight, etc.
- Enter a value. Type the number you want to convert.
- Pick the “from” and “to” units. Use the dropdowns to set your source and target.
- Read the result. The conversion appears immediately below.
Frequently Asked Questions
Q: Is this unit converter really free?
A: Yes, it’s 100% free. No sign‑up, no hidden fees. Use it as much as you want.
Q: Can I convert metric to imperial?
A: Absolutely. This metric to imperial converter handles all common US and international units.
Q: Does it work on mobile?
A: Yes. The tool is fully responsive and works on any phone, tablet, or computer.
Q: Are my conversion details private?
A: Yes. Everything runs locally in your browser. No data is collected or shared.
