Thermal Cutting Kerf Width Calculator

Calculate kerf width for oxy-fuel, plasma, and laser cutting processes to account for material loss in layout

Input Parameters

Results

--
Kerf Width
in
--
Kerf Width
mm
--
Material Lost to Kerf
in
--
Extra Stock Needed
in
Note: Kerf allowance is critical for accurate part layout. Always add kerf width per cut to material requirements.

Reference

Oxy-fuel kerf ~ 1/32" + 0.03 x thickness Plasma kerf ~ tip orifice x 1.5 Laser kerf ~ 0.010-0.020" Waterjet kerf ~ mixing tube dia + spread