Machinist Calculator

Machinist Calculator is a straightforward toolkit for machinists. It provides many tools in one simple app:

Calculator: A basic calculator with live, simultaneous metric (mm) and imperial (inch) unit conversion.

RPM Tool: Quickly calculates machine RPM from surface speed and tool diameter.

Triangle Solver: Solves for any unknown side or angle of a right-angle triangle.

Drill size chart and tap drill chart.

Keyway depth calculation.

All tools remember their last-used values for your convenience.