Convert length, weight, and temperature between metric and imperial units in your browser. Instant results with no upload.
Length (m, km, cm, mm, mi, ft, in), weight (kg, g, lb, oz), and temperature (°C, °F, K). Select a category, then pick from and to units.
Results display up to six decimal places with trailing zeros trimmed for readability. For scientific or compliance work, verify critical constants in a certified reference.
Pick Temperature, set from °C to °F (or reverse). Conversion uses standard offset formulas through Celsius internally—not a simple multiplier like length. Double-check medical or cooking thresholds after converting.
No. All math runs in your browser instantly; nothing you enter is uploaded.
Unit Converter handles physical measurements. Use Timezone Converter for clock times and calendar dates across regions.
The tool expects a finite number in the value field. Letters or empty input show an invalid-number message—use decimal points, not commas, for fractional values.
Meters, kilometers, centimeters, millimeters, miles, feet, and inches. Convert cm to feet by choosing cm → ft. Conversions normalize through meters as the base unit.
Choose Weight, set from kg to lb (or reverse). Also supports g and oz. Ounces are avoirdupois ounces used in everyday US weight, not fluid ounces.
The current tool supports length, weight, and temperature only. Use dedicated converters for volume, area, or other categories when those units are added in future releases.
Yes. Free with no login required.
Convert once, write the target unit on your shopping list, and do not mix notations mid-project. For construction, prefer millimeters or inches consistently per plan set. Double-check temperature conversions when sharing oven settings across regions.