Unit Converter
Convert length, weight, temperature, area, volume, speed, time, data, and energy units accurately and instantly. Free online unit converter.
Convert between everyday units across length, weight, temperature, area, volume, speed, time, data size, and energy. Enter a value, choose the units, and get an accurate result instantly, with a handy swap button to reverse the direction. All conversions run in your browser using standard, exact factors.
How to use Unit Converter
- Pick a category, such as Length or Temperature.
- Enter your value and choose the "from" and "to" units.
- Read the converted result, or press the swap button to reverse it.
Frequently asked questions
Are the conversion factors accurate?
Yes. The tool uses internationally standardized factors — for example, 1 inch = 0.0254 m and 1 pound = 0.45359237 kg — and handles temperature with proper offsets rather than simple ratios.
Does it convert temperature correctly?
Yes. Celsius, Fahrenheit, and Kelvin are converted through their real formulas, not just multiplied, so results are exact.
What's the difference between MB and MiB?
MB is decimal (1,000,000 bytes) and MiB is binary (1,048,576 bytes). Both are offered in the Data size category so you can convert either way.
Can I convert months and years?
Yes, in the Time category. These use average Gregorian values (a month is about 30.44 days) so long-range conversions stay consistent.