How to use Everyday Unit Converter

Convert an amount

Choose Length, Weight, Temperature or Volume, enter an amount, and choose the From and To units. Use the decimal-separator control for a dot or comma. Fractions, thousands separators and scientific-notation input are not accepted.

Read and copy results

The approximately-equal symbol marks a rounded display. Choose 4, 8 or 12 significant digits. Copy conversion uses your clipboard when available and provides a selectable text fallback otherwise. Swap units keeps the amount unchanged.

Know the limits

US and Imperial volumes are different. Volume cannot be converted to weight without a material density. More displayed digits do not make a measurement more accurate. This is an everyday calculator, not a medical dosing or safety-critical tool.