Designed For
Manual machinists, cnc operators, apprentices, and home-shop users.
Included Calculators
- Speeds and feeds
- Tap drill size
- Bolt-circle coordinates
- Machinist trigonometry
- MRR and horsepower
ShopCalc
ShopCalc: Machinist Calc
Shop-floor math for speeds and feeds, tap drills, bolt circles, trigonometry, drill depth, MRR, horsepower, and conversions.
Calculation Workflow
Enter valuesUse field units and project conditions.
Review resultCheck the calculated output and assumptions.
Verify externallyConfirm against official sources where the work is regulated or safety critical.