Climb Gradient Calculator

Calculate climb gradient for obstacle clearance and departure procedures.

Standard Climb Gradients

RequirementGradient
Standard IFR departure200 ft/nm
Typical ODP minimum300-400 ft/nm
Steep gradient departure500+ ft/nm

Formula

Gradient (ft/nm) = (Climb Rate x 60) / Ground Speed

Example: 500 fpm at 90 kt = (500 x 60) / 90 = 333 ft/nm