Unit Converter
Convert length, mass, volume and temperature between metric and common imperial units with clear unit compatibility checks.
Set your values
Adjust the values, then calculate your result.
How to use Unit Converter
- Load the example or enter your own values.
- Choose the relevant options and run the tool.
- Review the result, then copy it or download a local file.
When this tool is useful
Translate everyday measurements when following a specification, checking a package weight or comparing metric and imperial dimensions. Select two units of the same measurement type. Length, mass and volume conversions use fixed relationships; temperature conversions additionally apply the required offset. US liquid gallons and imperial gallons are separate choices so their different volumes remain visible.
Reading the result and limitations
A length cannot be converted into a mass without extra information such as density, so incompatible selections are rejected. Negative length, mass or volume and temperatures below absolute zero are also rejected. Ounces and pounds refer to mass rather than fluid volume or force. Calculations use JavaScript floating-point arithmetic and display up to twelve significant digits; they are suitable for general measurement checks rather than calibration certificates or precision laboratory work.
What are the main limits of Unit Converter?
A length cannot be converted into a mass without extra information such as density, so incompatible selections are rejected. Negative length, mass or volume and temperatures below absolute zero are also rejected. Ounces and pounds refer to mass rather than fluid volume or force. Calculations use JavaScript floating-point arithmetic and display up to twelve significant digits; they are suitable for general measurement checks rather than calibration certificates or precision laboratory work.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.