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Convert units of length, weight, area, volume, temperature, and speed easily. Supports meters, kilograms, Fahrenheit, and many more.
Choose from length, weight, area, volume, temperature, or speed.
Enter the number to convert and select the source unit from the dropdown.
Conversion results for all units are displayed in real time. Use the copy button to copy values.
Please enter a number
Unit Converter is an online tool that converts units across 6 categories: length, weight, area, volume, temperature, and speed. Simply enter a value to see conversion results for all supported units in real time.
We support 6 categories: length (mm, cm, m, km, inch, foot, etc.), weight (mg, g, kg, ounce, pound, etc.), area (m², km², acre, etc.), volume (mL, L, gallon, etc.), temperature (Celsius, Fahrenheit, Kelvin), and speed (m/s, km/h, mph, etc.).
Results are displayed with up to 6 significant digits. Very large or small values are shown in scientific notation (e.g., 2E15). When copying, values are converted to standard decimal notation.
Negative values can be entered. However, for temperature conversions, values below absolute zero (0 Kelvin = -273.15°C = -459.67°F) will result in an error, as such temperatures cannot physically exist.