Drone Flight Time Calculator

Total flying weight including battery, camera, GPS, antennas — everything that leaves the ground.

Series cell count. 4S = 14.8 V nominal, 6S = 22.2 V nominal. Higher S means more voltage, less current for the same power.

Grams of static thrust produced per watt at the hover point. Tinywhoop ~3, 5" race ~5, 5" cinematic ~7, 7" long-range ~9, 10" cinelifter ~11. Pull from your motor manufacturer's thrust table.

Determines the average power above hover. Hover-only is the upper bound, racing the lower.

Fraction of nameplate capacity you actually use before landing. Landing at 3.5 V/cell typically leaves ~80% usable; 3.7 V/cell leaves ~70%.

Combined motor + ESC electrical efficiency. Modern BLHeli_32 + quality motors hover around 90–94%.