🔁 Unit Conversion Calculator
Convert between length, weight, volume, temperature, area, and speed units instantly.
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Result
How the Unit Conversion Calculator Works
Most categories convert by multiplying your value by a fixed factor to get a common base unit, then dividing by the target unit's factor. Temperature is handled differently since Celsius, Fahrenheit, and Kelvin scales don't share a common zero point.
Formula
Temperature: F = C × 9/5 + 32 · K = C + 273.15 · C = (F − 32) × 5/9
Frequently Asked Questions
Why is temperature conversion different from the others?
Length, weight, volume, area, and speed conversions are simple ratios (multiplying by a factor), but temperature scales have different zero points, so a linear offset formula is required instead.
How accurate are the conversion factors?
The factors used are standard internationally recognized conversion constants (e.g. 1 inch = 0.0254 meters exactly), so results are accurate to several decimal places.
Can I convert between any two units in the same category?
Yes. All units within a category convert through a shared base unit, so any "from" and "to" combination within that category is supported.