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CNC Feeds & Speeds
CNC Feeds & Speeds

Cutting Speed Calculator

Calculate cutting speed from RPM and diameter.

Two-stage calculation

Basic calculation first. Advanced check second.

Run the simple relationship first, then use the advanced version when the operation needs more variables or machine constraints. The calculators are intentionally stacked, not side by side.

Basic calculation

Basic Cutting Speed Calculator

Calculate cutting speed from RPM and diameter.

Cutting Speed Basic

Enter the values you know. The result is calculated in your browser.

Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.

Advanced calculation

Advanced Cutting Speed Calculator

Use the fuller calculator when the dedicated variables and machine constraints matter.

Cutting Speed

Enter the values you know. The result is calculated in your browser.

Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.

About this calculation

Calculate cutting speed from RPM and diameter. The formulas are transparent and the result should be checked against the actual tool and material data.