Drone Mapping Accuracy Calculator

Calculate GSD, survey accuracy, photo count, and flight parameters from camera specs and flight altitude for photogrammetric mapping missions.

Sensor width (mm)

Focal length (mm)

Image width (px)

Image height (px)

Flight altitude (m AGL)

Front overlap (%)

Side overlap (%)

Survey area (hectares)

Flight speed (m/s)

Ground control points

Tab to move between fields

Ground sample distance (cm/px)

0.6

Horizontal accuracy (cm)

0.9

Vertical accuracy (cm)1.51

Total photos1,624

Flight lines28

Trigger interval (sec)0.7

Photo footprint width (m)33

Photo footprint height (m)22

Flight distance (km)9.17

Flight time (min)19.1

Recommended GCPs7

Data size (GB)12.66

Footprint Area (m²)726

How to Use This Calculator

Enter sensor width (mm), focal length (mm), image width (px), and image height (px) for your camera.
Set flight altitude (m AGL) and desired front and side overlap percentages.
Review GSD (cm/px), expected horizontal accuracy (cm), and vertical accuracy (cm).
Compare accuracy estimates to your project's mapping specification to confirm the sensor-altitude combination is sufficient.
Add ground control points (GCPs) to improve vertical accuracy beyond the RTK-only estimate.

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