Router Speed Calculator

Calculate safe router RPM for bit diameter.

Distance across a circle through its center.
in
Type of substance or matter being used.

Results

Maximum RPM:
Maximum allowed or calculated value.
-RPM
Recommended RPM:
Suggested value based on calculations.
-RPM
Surface Feet/Min:
Minimum required or calculated value.
-SFM
Reference: Industry Standards. Larger bits require slower speeds.