Drone Photography Calculator

How It Works

Ground Sampling Distance (GSD) is the most important metric in aerial mapping — it tells you how much real-world area each pixel represents. Lower altitude = smaller GSD = more detail, but requires more photos and flight time. For mapping: 70-80% front overlap and 60-70% side overlap ensures complete coverage. For inspection: higher overlap (80%+) gives better 3D reconstruction. FAA Part 107 limits commercial drone flights to 400 ft AGL. Larger sensors produce better GSD at the same altitude because each pixel captures more light and detail. Always shoot in RAW for mapping work, and avoid midday flights when shadows are minimal (reduces 3D accuracy).