How to use this tool
- Enter your values or try the example.
- Run the tool and check the result.
- Save the result where a download is available.
Supported features & limits
Unshifted involute spur-gear geometry: addendum 1 module, dedendum 1.25 modules. Teeth 18–200, module 0.1–20 mm, pressure angle 20–30°. Flanks use 24 line segments; roots use radial joins and arcs, without generated trochoidal fillets. No backlash, kerf, strength or pair-interference calculation. Review the profile before fabrication.
What happens to my files?
Your entries are processed locally and are not sent to our server. Reset clears the result and restores initial form values. Downloads remain on your device.
Maintained by Roman Zmazhenko. Updated 1 November 2026.