Climb Gradient Calculator
Convert rate of climb to climb gradient (ft/NM and %), check against departure procedure requirements, and verify obstacle clearance.
Inputs
fpm
C172 sea level: ~730 fpm, at 5000 ft: ~530 fpm
kt
Vy climb: 70–90 kt for light aircraft
ft/NM
Results
Climb Gradient
375 ft/NM
Meets Requirement?
Yes
Climb Gradient6.2%
ROC Needed for Requirement267 fpm
Climb Gradient
375 ft/NM
Meets Requirement?
Yes
How to Use This Calculator
- Enter your rate of climb from the POH at current conditions.
- Enter your climb ground speed (Vy adjusted for wind).
- Enter the required gradient from the departure procedure.
- Verify your gradient meets or exceeds the requirement.
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