Your everyday toolkit

Tooldam is a collection of free tools for quick calculations, conversions, and text editing. No account or installation is needed.

Instant results

Open a tool, enter a value, and copy the result. Everything runs in your browser. The language menu keeps you on the same tool.

Calculation rules

Each tool explains its rules below the input. Numbers use up to 15 significant digits; floating-point calculations can have rounding errors. Use a recent Chrome, Safari, Firefox, or Edge.

Bookmark a tool to come back to it. All tools