Unit Converter
Free unit converter for length, weight, volume, and area. Instantly convert between metric and imperial units with accurate results.
Related Calculators
You might also find these calculators useful
Convert Units Instantly and Accurately
Whether you're cooking with a recipe from another country, working on an international project, or solving homework problems, our unit converter handles all your conversion needs. Switch between metric and imperial units effortlessly with precise results.
Understanding Unit Conversion
Unit conversion is the process of changing a measurement from one unit to another while maintaining the same quantity. The world uses different measurement systems—metric (meters, kilograms, liters) predominates globally, while the US primarily uses imperial (feet, pounds, gallons). Understanding conversions is essential for international communication, science, cooking, travel, and countless everyday situations.
Conversion Principle
New Value = Original Value × Conversion FactorWhy Use Our Unit Converter?
Multiple Unit Types
Convert length, weight, volume, temperature, and more in one convenient tool.
Precise Calculations
Get accurate conversions using exact conversion factors, not rounded approximations.
Common & Uncommon Units
From everyday miles-to-kilometers to specialized units, we've got you covered.
How to Convert Units
Unit Conversion Scenarios
Cooking & Recipes
Convert cups to milliliters, ounces to grams, and Fahrenheit to Celsius for international recipes.
Travel Planning
Convert miles to kilometers, gallons to liters, and understand local measurement systems.
Fitness Tracking
Switch between pounds and kilograms, miles and kilometers for workout logging.
Academic Work
Complete physics, chemistry, and engineering assignments requiring unit conversions.
Frequently Asked Questions
The metric system was developed during the French Revolution for universal standardization. Most countries adopted it, but the US, Liberia, and Myanmar still primarily use imperial/customary units. This historical divide persists due to the cost and complexity of switching established systems.