About & Terms

These calculators are provided as free reference tools to help with CNC programming, geometry, and shop math.

The calculators perform mathematical calculations only. I do not know your machine, axis directions, coordinate system, tooling, or programming method. You are responsible for verifying and correctly applying the calculated results to your specific machine and situation.

Always verify your inputs and results before use. Simulate, dry-run, single-block, and inspect as appropriate before running any CNC program or moving a machine.

These calculators are provided “as is” without warranty of any kind. While I strive for accuracy, errors, bugs, rounding differences, browser issues, or incorrect inputs can occur.

By using this site, you accept responsibility for how you use the results. I am not liable for damaged tools, scrapped parts, machine crashes, lost production, injury, or any other damages resulting from the use or misuse of these calculators.

The calculators run entirely in your browser. Values you enter are not intentionally collected or stored. Standard server logs may be collected by the site host.

Questions, bug reports, or corrections are always welcome at cnctrig@gmail.com.