Would be perfect with metric feed option.
If we could set everything in metric this would be perfect for me.

Calculate lathe RPM based on material, designation, and tool type. Supports a wide range of materials and allows for unit changes. Simply input your work diameter to get the RPM value.
1.0.1
December 31, 2018
# Minor layout changes, # Changed measurement units.
Lathe RPM Calculator supports a comprehensive list of materials including various steels, cast iron, non-ferrous metals like brass and aluminum, plastics such as Delrin and Polycarbonate, and even wood. This extensive support ensures versatility for different machining projects.
To use Lathe RPM Calculator, you select the material, its designation, and the tool type. You can also change measurement units if needed. Finally, enter the work diameter, and the app will calculate the required RPM.
Yes, Lathe RPM Calculator is completely free to download and use. There are no in-app purchases or subscription fees required to access its full functionality.
Lathe RPM Calculator is available for iPhone, iPad, and iPod touch devices. It is designed to be compatible with Apple's mobile operating system.
Lathe RPM Calculator was last updated on December 31, 2018, with version 1.0.1. While there haven't been recent updates, the app's core functionality remains stable for its intended purpose.
Lathe RPM Calculator has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.
No, Lathe RPM Calculator is ad-free. Users can enjoy calculating RPM without any interruptions from advertisements.
Lathe RPM Calculator has received excellent user feedback, with an average rating of 5.0 stars from 1 rating. This suggests a highly positive user experience.