Unit Converter

Convert length, mass, temperature, area, volume, data storage and time units online, with imperial units included. Formatted for your locale. Runs in your browser.

Runs locally · data never uploaded
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How to use

What it does

Convert across seven categories: length, mass, temperature, area, volume, data storage and time. It includes common imperial units (inch, foot, mile, pound, ounce, gallon, °F), formats results for your locale, and lists the value in every unit of the chosen category.

Example

Pick "Length", enter 1, source m, target ft to get about 3.28084 feet. Switch to "Temperature": 100 °C equals 212 °F.

Notes

  • Temperature uses formulas, not simple ratios
  • Data storage uses a 1024 base (1 KB = 1024 B)
  • The table shows the value in every unit of the category

FAQ

Q1.Does data storage use 1000 or 1024?
This tool uses the binary 1024 base (1 KB = 1024 B), which matches most systems; if you need SI decimal (1 kB = 1000 B) the numbers differ slightly.
Q2.How is temperature converted?
Temperature is not a ratio, so it uses formulas: °F = °C×9/5+32 and K = °C+273.15.
Q3.Are imperial units supported?
Yes. Length includes inch/foot/mile, mass includes pound/ounce, volume includes gallon, and temperature includes °F, convenient for English-speaking users.
Q4.Is my data uploaded?
No. Conversion happens entirely in your browser.
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