CRS Coordinate Converter
Convert coordinates between WGS84, UTM, State Plane, NAD83 and other EPSG systems. Paste them, or import a CSV and the columns are matched for you.
- Runs in your browser
- No sign-up
- Free
Coordinate systems
Coordinates
2 points converted
| In · lat, lon | Out · x, y |
|---|---|
| 28.61390000, 77.20900000 | 715980.294, 3167204.820 |
| 28.61490000, 77.21050000 | 716124.944, 3167318.361 |
Where these points land
Loading map…
If a point is not where you expect, the axis order or the source system is usually the reason.
Heights pass through unchanged. proj4 cannot apply a vertical datum shift or a grid file (NTv2/NADCON) in the browser, so results use the published 3- or 7-parameter transformation.
Understanding coordinate reference systems
Coordinate Reference Systems (CRS) define how geographic locations are represented numerically. Different systems are optimised for different purposes: global navigation, local surveying, or web mapping.
Why CRS matters for drone mapping
- Data alignment: every layer must use the same CRS to overlay correctly
- Accurate measurements: a projected CRS such as UTM gives distances in metres
- GIS compatibility: different software expects different systems
- Global vs local: geographic for global data, projected for local accuracy
Common Coordinate Reference Systems
| Name | EPSG | Units | Best For |
|---|---|---|---|
| WGS84 Geographic | 4326 | Degrees | GPS, Global data |
| Web Mercator | 3857 | Meters | Google Maps, Web mapping |
| UTM Zone (varies) | 326XX/327XX | Meters | Surveying, Drone mapping |
| State Plane (varies) | Varies | Feet/Meters | US local surveys |
| British National Grid | 27700 | Meters | UK mapping |
| India Zone (varies) | 24378-24383 | Meters | India surveys |
Choosing between systems
- EPSG:4326 vs EPSG:3857 — degrees against Web Mercator metres, and why neither should be measured in.
- WGS 84 vs NAD83 — identical in 1986, 1–2 m apart today, and still treated as the same by a lot of software.
- Which coordinate system should I use? — a three-question procedure, plus the unit traps that cost people metres.
- All 7 guides and the full EPSG list the converter supports.
Frequently Asked Questions About CRS Conversion
Enter your WGS84 coordinates (latitude, longitude) in our CRS Converter. Select your target UTM zone EPSG code (e.g., EPSG:32643 for UTM Zone 43N). The tool instantly converts to UTM Easting and Northing in meters. Use UTM Zone Finder if you don't know your zone.
EPSG:4326 is WGS84 geographic coordinates (latitude/longitude in degrees) - used by GPS devices and most location data. EPSG:3857 is Web Mercator (meters) - used by Google Maps, OpenStreetMap, and web mapping. For accurate measurements, convert to local UTM or State Plane.
For drone mapping, use a local projected CRS like UTM for your zone or State Plane for US projects. These provide accurate distance and area measurements in meters or feet. Avoid using WGS84 (EPSG:4326) for measurements as it's in degrees, not linear units.
Coordinate values look different because CRS use different units and origins. WGS84 uses degrees (-180 to 180), UTM uses meters from zone origin (typically 6-digit eastings, 7-digit northings). The location is the same - only the numerical representation differs.
Our converter supports batch conversion. Enter multiple coordinate pairs (one per line) or paste from a spreadsheet. The tool converts all points simultaneously and exports results in CSV format for use in GIS software.