Estimate time to climb, required climb rate, and distance covered during climb. This free aviation calculator helps pilots with departure planning, terrain clearance, and flight performance awareness.
Use either method below. The first method calculates time to climb and climb distance. The second method calculates the climb rate required to gain altitude within a given time.
A time to climb calculator helps pilots estimate how long it will take to gain a given amount of altitude at a known climb rate. It can also estimate how much distance the aircraft will cover during the climb if groundspeed is known.
A required climb rate calculator works in the opposite direction and helps determine how many feet per minute are needed to reach a target altitude within a given amount of time.
Divide altitude to gain by climb rate. That gives time in minutes when climb rate is entered in feet per minute.
Divide altitude to gain by the time available in minutes.
Groundspeed affects how far the aircraft travels over the ground while climbing, which can matter for terrain, departure planning, and route awareness.
This calculator is a planning aid. Actual climb performance depends on aircraft weight, density altitude, wind, configuration, and aircraft-specific performance data.