Unit converter
Convert 246 units across everyday, scientific and engineering measurements.
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Unit converter — workspace
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How to use: Unit converter
Choose a measurement type. Only compatible units appear.
Enter your value, select the source and destination units, and choose the precision. Use Swap units to reverse the direction.
Get the result and compare every unit in that category. Copy or download your conversion.
What you can do
- Convert 246 units across everyday, scientific and engineering measurements.
What you get
- A result you can review, copy or download. Numeric tools show labeled calculations; text tools show the transformed output.
What you need
- Measurement type
- Length, Mass / weight, Temperature, Area, Volume & cooking, and Time duration; 32 choices in total.
- Value
- Enter a number.
- From
- Meter (m), Kilometer (km), Centimeter (cm), Millimeter (mm), Micrometer (µm), and Nanometer (nm); 246 choices in total.
- To
- Meter (m), Kilometer (km), Centimeter (cm), Millimeter (mm), Micrometer (µm), and Nanometer (nm); 246 choices in total.
- Significant digits
- Enter a whole number (3–15).
Try an example
- Measurement type
Length
- Value
1
- From
Meter (m)
- To
Foot (international) (ft)
- Significant digits
12
Good to know
- 246 units across 32 categories. US and Imperial measures are distinct. Results use 3–15 significant digits; scientific notation preserves very small values. Months, currency, pixels and Mach need extra context and are not fixed conversions.
Your work stays on your device
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
Questions & answers
Is Unit converter free?
Yes. Unit converter is free to use and does not require an account.
Are my files or entered values uploaded?
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
What result can I save?
A result you can review, copy or download. Numeric tools show labeled calculations; text tools show the transformed output.
What should I check before using the result?
246 units across 32 categories. US and Imperial measures are distinct. Results use 3–15 significant digits; scientific notation preserves very small values. Months, currency, pixels and Mach need extra context and are not fixed conversions.