Convert length, weight, and temperature instantly
Metric and imperial units — no signup needed
This converter handles three categories with metric and imperial options:
| Category | Units | Common Use |
|---|---|---|
| Length | Meters, Kilometers, Centimeters, Miles, Yards, Feet, Inches | Travel, construction, science |
| Weight | Kilograms, Grams, Pounds, Ounces | Cooking, shipping, fitness |
| Temperature | Celsius, Fahrenheit, Kelvin | Weather, science, cooking |
All conversions use standard international factors. For example, 1 mile is exactly 1,609.344 meters, and 1 pound is exactly 0.453592 kilograms. Temperature conversions use the standard formulas: Celsius to Fahrenheit is (°C × 9/5) + 32, and Celsius to Kelvin is °C + 273.15.
Math and science classes often require switching between metric and imperial. Physics problems may need meters to feet or kilograms to pounds.
Driving in a country with different road signs? Convert kilometers to miles (or vice versa) to understand distances and speed limits.
International recipes use different units. A European recipe might list 500g of flour; a US recipe might say 4 cups. Convert grams to ounces or pounds for accuracy.
Gym equipment and body weight trackers vary by region. Convert kilograms to pounds to match your scale or workout plan.
Building materials often come in imperial units (2x4 lumber, 16-inch centers) even in metric countries. Convert feet to meters or inches to centimeters for precise cuts.
Checking the forecast abroad? Convert Celsius to Fahrenheit to understand if 30°C is hot (it is — 86°F) or if 10°C needs a jacket (yes — 50°F).
Length: meters, kilometers, centimeters, miles, yards, feet, inches. Weight: kilograms, grams, pounds, ounces. Temperature: Celsius, Fahrenheit, Kelvin.
Yes. Conversions use standard international factors (e.g., 1 mile = 1,609.344 meters; 1 pound = 0.453592 kilograms). Results display to 6 decimal places for precision.
Yes. Once the page loads, all calculations happen in your browser using JavaScript. No internet connection is needed for conversions.
Temperature uses offset formulas, not simple multiplication. Celsius to Fahrenheit is (°C × 9/5) + 32. Kelvin is °C + 273.15. These formulas account for the different zero points of each scale.