Quadcopter Build Calculator
Plan your FPV quad powertrain — from prop size and weight through motor sizing and battery cells — and find the optimal motor KV for any flight style. Start with a propeller size and work through each parameter. Weight and motor size can be set as rough presets or dialed in precisely by clicking the value.
Add up to 3 additional setups to compare configurations side by side — useful for evaluating different prop sizes, weights, or battery cell counts at a glance.
Setup
Propeller
Motor
Target Weight
Normal KV Range
Setup 1
Propeller
3.5" 2.48 dm²
-53% vs 5.1" area
Motor
~1604
Balanced
Target Weight
199g - 310g
Agile
Motor KV 3496 - 4082 KV
4S (15.2V)
Motor Alternatives
1106 570 mm³ ~7.6g -29%
1404 616 mm³ ~8.2g -23%
1404.5 693 mm³ ~9.2g -14%
1604 804 mm³ ~10.7g 0%
1505 884 mm³ ~11.8g +10%
1605 1005 mm³ ~13.4g +25%
1804 1018 mm³ ~13.6g +27%
Target Motor KV vs Flight Style
Hover to inspect. Click to lock tooltip.
Setup 1
Disc Loading Profile
Move horizontally to compare AUW. Click to lock.