NigeriaGeo Pro is a prototype geospatial tool designed to assist surveyors, GIS professionals, engineers, and students in performing coordinate transformations between Nigerian coordinate systems — instantly, accurately, and for free.
A free, browser-based coordinate transformation engine built specifically for Nigerian geodetic reference systems.
Nigeria operates with two parallel address systems for the same physical locations. The Minna datum — used in every official survey plan, Land Registry document, and Certificate of Occupancy since the colonial era — and WGS84 — the system used by every GPS device, Google Maps, and modern instrument.
These two systems describe the same spot on the ground using numbers that differ by approximately 100 to 200 metres. This is not an error — it is a coordinate language difference. NigeriaGeo Pro bridges this gap using the official EPSG:1061 Molodensky transformation parameters.
Three Transverse Mercator zones covering western, central, and northeastern Nigeria. All use the Minna datum, Clarke 1880 ellipsoid, and scale factor k₀ = 0.99975.
The global GPS standard. Used by all smartphones, GNSS receivers, satellite imagery, and online maps. Coordinates in decimal degrees latitude and longitude.
Global projected coordinate system on WGS84 datum. No datum shift required when converting from WGS84. Used in international GIS projects.
Used by Google Maps, OpenStreetMap, and Bing Maps for tile display. Suitable for visualisation only — introduces up to 0.7% distance error.
The complete transformation process from input to validated result — explained clearly for professionals and students alike.
Choose your source CRS from the dropdown — West Belt, Mid Belt, East Belt, WGS84, UTM, or Web Mercator. The input field labels update automatically.
Type a single point (Easting/Northing or Longitude/Latitude) or upload a batch CSV file containing multiple coordinates for bulk processing.
Select the CRS you want to convert to. The pipeline display updates instantly, showing which mathematical operations will be applied before you run anything.
Click Transform. All Molodensky and Transverse Mercator calculations execute locally in your browser in under one second — no server, no internet needed.
Transformed coordinates appear instantly. A gold marker is placed on the interactive OpenStreetMap so you can visually confirm the result is in the right location.
A complete walkthrough of NigeriaGeo Pro — from opening the app to exporting batch transformation results.
A comprehensive reference guide for all users — from beginner students to experienced licensed surveyors.
The manual covers everything from opening the application for the first time to understanding the geodetic mathematics behind each transformation. Written in plain, accessible English suitable for both professionals and students.
40 real Nigerian locations across all three belt zones — ready to upload directly into NigeriaGeo Pro's Batch CSV tab for testing.
⬇ Download Test CSVThis is a prototype tool built for the Nigerian geospatial community. Your feedback — whether you are a licensed surveyor, GIS analyst, geology student, or first-time user — directly shapes the next version.
NigeriaGeo Pro is a prototype geospatial tool developed for educational and professional assistance purposes. Transformation parameters are sourced from the EPSG Geodetic Parameter Registry (EPSG:1061) and formulas follow IOGP Guidance Note 7 Part 2. The application has not been formally certified by SURCON or any State Surveyor General's office. Users are responsible for verifying all coordinate outputs before using them in official surveying, engineering, cadastral, or legal applications. The developer accepts no liability for decisions made based on outputs from this tool without independent professional verification.