UnitConverter

Free Online Unit Converter - Convert Units Instantly

Convert between 100+ units of measurement instantly. Fast, accurate unit converter for length (ft to m, in to cm), weight (lbs to kg), volume (gal to L), temperature (°F to °C), area, speed, time, and currency. Mobile-friendly conversion calculator - no registration required.

Length Converter - Convert Feet to Meters, Inches to CM Online

Weight Converter - Convert Pounds to Kilograms, Ounces to Grams

Volume Converter - Convert Gallons to Liters, Cups to ML

Temperature Converter - Convert Celsius to Fahrenheit, Kelvin

Area Converter - Convert Square Feet to Square Meters, Acres

Speed Converter - Convert MPH to KMH, Meters per Second

Time Converter - Convert Hours to Minutes, Days to Weeks

Currency Converter - Convert USD to EUR, GBP, JPY Exchange Rates

Note: Exchange rates are approximate and for demonstration only. Use official sources for actual transactions.

About Unit Conversion

🚀 Fast & Accurate

Instant conversions as you type with precise calculations and proper rounding.

📱 Mobile Friendly

Works perfectly on all devices - desktop, tablet, and mobile phones.

🔒 Privacy First

All conversions happen in your browser. No data sent to servers.

🆓 Completely Free

No registration required, no limits. Use as much as you need.

How to Use the Unit Converter

1. Select Conversion Type

Choose from length, weight, volume, temperature, area, speed, time, or currency conversion tabs.

2. Enter Value

Type the number you want to convert in the "From" input field.

3. Select Units

Choose the source unit and target unit from the dropdown menus.

4. View Results

The converted value appears instantly with the conversion formula displayed below.

Most Common Unit Conversions

Length Conversions

  • 1 meter = 3.28084 feet
  • 1 inch = 2.54 centimeters
  • 1 mile = 1.60934 kilometers
  • 1 yard = 0.9144 meters

Weight Conversions

  • 1 kilogram = 2.20462 pounds
  • 1 ounce = 28.3495 grams
  • 1 stone = 14 pounds
  • 1 tonne = 1000 kilograms

Volume Conversions

  • 1 liter = 0.264172 gallons (US)
  • 1 gallon = 3.78541 liters
  • 1 cup = 236.588 milliliters
  • 1 quart = 0.946353 liters

Temperature Conversions

  • 0°C = 32°F = 273.15K
  • 100°C = 212°F = 373.15K
  • Formula C to F: (C × 9/5) + 32
  • Formula F to C: (F - 32) × 5/9