Converters

Unit, currency and format converters

Two systems describe the same quantity and only one of them fits where you need it. A floor plan is drawn in square feet while your room is measured in meters. A receipt arrives in a currency you do not budget in. A design file specifies a hex code where your stylesheet expects hsl(). Each converter here performs one of those translations without altering the thing itself.

The Unit Converter covers eighteen unit families — length, mass, temperature, pressure, data storage and more — with temperature converted through the exact formulas rather than approximations. The Currency Converter works from the European Central Bank's published daily reference rates, the same figures accounting departments cite, rather than live trading prices. The Color Converter keeps HEX, RGB, HSL and HSV in sync while you type and treats HEX as the canonical form, so a value taken from the HEX card survives a round trip unchanged.

Enter the value you have, read off the value you need, and get on with the task.

Every tool below runs entirely in your browser — no signup, no downloads, no data leaves your device.