Drone Flight Time Calculator
Calculate drone flight time based on battery capacity, weight, and power consumption
Calculate Drone Flight Time
Battery capacity (found on LiPo battery label)
Recommended: 80% (to prevent LiPo damage)
Nominal voltage (found on battery label)
Total weight including battery and payload
Conservative estimate: 170 W/kg, efficient: 120 W/kg
Flight Time Results
Formula: Flight Time = (Battery Capacity × Discharge) ÷ Average Amp Draw
Amp Draw: (All-Up Weight × Power Required) ÷ Battery Voltage = 0.00A
Flight Time Analysis
Example Calculation
Aerial Photography Drone
Battery capacity: 8,800 mAh (8.8 Ah)
Battery discharge: 80%
Battery voltage: 36V
All-up weight: 2.5 kg
Power required: 170 W/kg
Calculation Steps
1. Average Amp Draw = (2.5 kg × 170 W/kg) ÷ 36V = 11.8A
2. Flight Time = (8.8 Ah × 80%) ÷ 11.8A = 0.6 hours
Result: 36 minutes hover time
Factors Affecting Flight Time
Weight
Heavier drones require more power
Battery
Higher capacity = longer flight
Efficiency
Motor and propeller efficiency
Flying Style
Aggressive flying uses more power
LiPo Battery Safety
Never discharge below 80% to prevent damage
Store at 50-60% charge for longevity
Use a LiPo-compatible charger
Never leave charging unattended
Flight Time Optimization
Use larger capacity batteries
Reduce unnecessary weight
Use efficient propellers
Fly in calm weather conditions
Maintain smooth flying patterns
Understanding Drone Flight Time Calculations
Flight Time Formula
Flight Time = (Capacity × Discharge) ÷ Amp Draw
- Capacity: Battery energy storage (mAh or Ah)
- Discharge: Safe discharge percentage (usually 80%)
- Amp Draw: Average current consumption (A)
Amp Draw Calculation
Amp Draw = (Weight × Power/kg) ÷ Voltage
Flight Mode Impact
Minimal movement, stable flight
Slow movements, position adjustments
Fighting wind, frequent movements
High throttle, aggressive maneuvers
Note: Actual flight times vary based on weather, flying style, and drone condition. Use these calculations as estimates for planning.