Drone Flight-Time Calculator

Estimate hover time and learn when this estimate breaks down

Drone & Battery Inputs
kg

Battery Voltage (V): 11.1V

85%

Multiplier relative to hover power. Depends on airframe drag and speed.

Flight Time Results

Hover Time

27.4 min

Cruise Time

30.4 min

Maximum Range

30.4 km

Battery Capacity

42.0 Wh
ConfidenceMEDIUM
Design RiskLOW

Reasonable hover estimate. Forward flight and maneuvers will reduce actual time.

Check Current Draw
Battery Discharge Graph

⚠️ This is a simplified ideal discharge pattern for visualization. Actual voltage varies with C-rate, temperature, and battery age. This graph does not affect flight time calculations.

Assumptions

  • Hover-centric estimate (not forward flight optimized)
  • Assumes 80% usable battery capacity for safety
  • Uses average discharge voltage (3.5V/cell), not nominal 3.7V
  • Cruise time uses a multiplier on hover power (adjustable in Standard/Advanced)

When This Estimate Breaks Down

  • Actual flight time varies with wind, temperature, and flight style
  • High current draw causes voltage sag, reducing usable capacity
  • Forward flight efficiency depends heavily on airframe design

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