When to Use This Unit Converter

Our free unit converter helps with everyday and professional conversion needs:

Travel & Navigation
Convert miles to kilometers, Fahrenheit to Celsius, and gallons to liters when traveling abroad.
Cooking & Recipes
Convert recipe measurements between cups, tablespoons, milliliters, and grams for perfect results.
Science & Engineering
Convert between scientific units for physics, chemistry, and engineering calculations.
Fitness & Health
Convert weight between pounds and kilograms, track distances in miles or kilometers.
Construction & DIY
Convert measurements between imperial and metric for building projects and home improvements.

Frequently Asked Questions

How accurate are the conversions?: Our conversions use high-precision calculations with industry-standard conversion factors. Results are accurate to at least 10 decimal places for precise scientific and professional use.
What unit categories are supported?: We support 13 categories: length, weight, temperature, volume, area, speed, time, data storage, pressure, energy, power, force, and fuel economy, covering over 90 different units.
Does this tool work offline?: Yes! Once the page loads, all conversions happen locally in your browser. You can convert units without an internet connection anytime you need.
Are metric and imperial units both supported?: Absolutely. Each category includes both metric and imperial units. Convert between meters and feet, kilograms and pounds, Celsius and Fahrenheit, and many more.
Can I save my favorite conversions?: Yes! Click the star icon to save frequently used unit pairs to your favorites. Your favorites and conversion history are stored locally and persist between sessions.