Calculator · Machines & tooling
Router Bit Speed Calculator
The free Router Bit Speed Calculator answers one question: Maximum safe RPM by bit diameter. Enter your numbers in inches or millimeters and the result updates instantly in your browser, with no sign-up and no app to install. Use it on your phone at the bench, then copy or print the result for your cut list.
Large bits must spin slower. Always follow the bit manufacturer's maximum if it's lower.
Which other machines & tooling calculators help with this project?
- Saw Blade Rim Speed Calculator — Tip speed of a saw blade or sanding disc.
- Pulley Speed Calculator — Output RPM from motor speed and pulley sizes.
- Dust Collection CFM Calculator — Airflow and duct size per machine.
- Band Saw Blade Length Calculator — Blade length from wheel size and center distance.
What you'll need for this project
Tools
Screws & hardware
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Build it · Intermediate · 1 weekend
Download the complete plan with cut list and materials list (PDF)
Benchtop Router Table — Router table with split fence, dust port and insert plate. Drawings, cut list with board-foot totals, hardware list and step-by-step instructions.
$14.99All plans & bundles →