GEO Calc : Coordinates

GEO Calc is a professional field instrument for geographic calculations on the WGS84 ellipsoid — built for surveyors, engineers, and outdoor professionals who work where networks don't.

COORDINATE CONVERTER
Convert between Decimal Degrees, DMS, UTM, and MGRS. Paste any format with auto-detect. Copy results in one tap.

LIVE GPS
Real-time coordinates in every supported format when location is available.

DISTANCE & BEARING
Ellipsoidal geodesic distance and forward azimuth between two points using Vincenty calculations — not flat-map shortcuts.

DIRECT GEODESIC
Enter bearing and distance to compute a precise destination coordinate.

MAP MEASURE
Draw paths and polygons on an offline map canvas. Measure path length and polygon area on the WGS84 ellipsoid. Optional GPS centering.

FIELD NAVIGATOR
Live compass arrow to any coordinate — walk to a point with arrival feedback.

WAYPOINTS & GPX
Save named waypoints on device. Export as GPX 1.1 for GIS tools and GPS devices.

UNITS & LANGUAGES
Metric, imperial, or nautical display. Twelve languages. Dark theme for outdoor readability.

OFFLINE BY DESIGN
Core tools work without a network. No account required. Your data stays on your device.

FREE WITH OPTIONAL PRO
GEO Calc is free with banner and interstitial ads. Upgrade once to Pro for live navigator, satellite map, USNG & Plus Codes, GPX import, unlimited waypoints, and no ads. No subscription.

Not a substitute for certified surveying instruments or legal boundary determinations. Verify critical measurements with appropriate professional methods.