🔄 Unit Converter
Convert length, weight, temperature, volume and speed instantly.
Unit Converter — Convert Length, Weight, Temperature, Volume & Speed
Our free unit converter instantly converts between metric and imperial units: feet to meters, pounds to kilograms, Celsius to Fahrenheit, gallons to liters, mph to km/h, and dozens more. One tool, five categories, zero signup.
What Can You Convert?
- 📏 Length — kilometers, meters, centimeters, miles, yards, feet, inches.
- ⚖️ Weight — kilograms, grams, pounds, ounces, tons.
- 🌡️ Temperature — Celsius, Fahrenheit, Kelvin.
- 🧪 Volume — liters, milliliters, gallons, quarts, cups.
- 🚗 Speed — km/h, mph, m/s, knots.
Quick Conversion Formulas
- Feet to meters: multiply feet by 0.3048.
- Celsius to Fahrenheit: (°C × 9/5) + 32.
- Pounds to kilograms: multiply pounds by 0.4536.
- Miles to kilometers: multiply miles by 1.609.
Frequently Asked Questions
How accurate are the conversions?
Results use standard international conversion factors and display up to 6 decimal places — plenty for homework, cooking, travel, and DIY.
Can I convert temperature too?
Yes — temperature uses its own formula (not a simple multiplier), and the tool handles Celsius, Fahrenheit, and Kelvin correctly.
Is it free?
Completely free with unlimited conversions, no account needed.
How to use
- Pick a category (length, weight, temperature…).
- Enter a value and choose from/to units.
- Click "Convert" for the instant result.