Free tool

Unit Converter

Convert common engineering units for CAD, CAM, BIM, machining, simulation, and 3D printing work.

Processing

Browser only

Convert Units

Choose a category, enter a value, then pick source and target units.

CAD-Friendly Defaults

Length defaults to meters and millimeters, with inch, foot, yard, mile, micron, mil, and nautical mile available for mixed metric and imperial workflows.

Private by Design

Conversions run locally in your browser. The values you type are not uploaded to the server.