CNC Machinist Calculator
Everyone
Using a friendly interface inside CNC Machinist Calculator. janey-moon gives the finest touch for AGCscript enthusiasts. Explore info via Tools.
All You Need To This Latest Version CNC Machinist Calculator
▶ Every shop calc in one app. Get speeds and feeds, tap drill sizes and bolt-circle coordinates without flipping through charts or paying for a locked-up tool.
▶ Speeds & feeds, both ways. Pick a material and enter tool diameter and flute count for RPM, cutting speed and feed rate — or work it backward from RPM. Switch imperial and metric anytime.
▶ Tap drill in seconds. Choose a metric or unified thread and get the tap drill size with the nearest standard drill, plus a thread-percentage slider for tight or loose fits.
▶ Bolt circle coordinates. Enter hole count, diameter and start angle for an X/Y table you can copy row by row straight into the control, with a quick preview.
▶ Reference built in: material speed presets, a number/letter/fraction/metric drill chart, point-depth and surface-finish cards.
Recommended speeds are a starting point, not a final spec. Tune to your machine, tooling and material, and follow your tooling maker's data.
▶ Speeds & feeds, both ways. Pick a material and enter tool diameter and flute count for RPM, cutting speed and feed rate — or work it backward from RPM. Switch imperial and metric anytime.
▶ Tap drill in seconds. Choose a metric or unified thread and get the tap drill size with the nearest standard drill, plus a thread-percentage slider for tight or loose fits.
▶ Bolt circle coordinates. Enter hole count, diameter and start angle for an X/Y table you can copy row by row straight into the control, with a quick preview.
▶ Reference built in: material speed presets, a number/letter/fraction/metric drill chart, point-depth and surface-finish cards.
Recommended speeds are a starting point, not a final spec. Tune to your machine, tooling and material, and follow your tooling maker's data.
CNC machinist calculator: speeds and feeds, tap drill charts, bolt circles
Updated on
Aug 16, 2026
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- This app may share these data types with third partiesDevice or other IDs
- This app may collect these data typesApp activity and App info and performance
- Data is encrypted in transit
What’s new
Resolved the startup failure that kept CNC Machinist Calculator from loading on Chromebooks and tablets that run phone apps through a compatibility layer.
