Coordinate Converter
Paste a list of coordinates and convert them all between decimal degrees, degrees minutes seconds and UTM. Runs in your browser on WGS84, with automatic UTM zone detection and a map of every point.
Paste coordinates
Type or paste cells straight from your spreadsheet, one coordinate per row.
| # | Latitude | Longitude |
|---|---|---|
| 1 | 24.00252 | 76.023785 |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
Paste straight from your spreadsheet (Ctrl+V or ⌘V). Drag to select, Ctrl+C or ⌘C copies, Enter moves down, drag the corner square to fill.
What this tool does
Renewable-energy teams receive coordinates in every format imaginable: decimal degrees from a GPS export, DMS from a land record or survey sketch, and UTM eastings and northings from a CAD drawing. This converter takes any one of them and returns all three.
- Paste many rows at once, straight from a spreadsheet, into a grid that behaves like one: multi-select, copy back, drag to fill.
- Decimal degrees (DD) to degrees, minutes, seconds (DMS) and back.
- Latitude and longitude to UTM easting, northing, zone and band, and back.
- Copy the result table back to your spreadsheet, download it as CSV, or plot every point on the map.
Inputs
The latitude and longitude fields accept decimal degrees, DMS and degrees with decimal minutes in almost any notation. Hemisphere can be given as a sign or a letter.
| Format | Accepted examples |
|---|---|
| Decimal degrees | 24.00252, -79.948862, 33.8688 S, 76.023785E |
| DMS | 24° 00′ 09.072″ N, 24 0 9.072 N, N 24 0 9.072, 24d 0m 9.072s N, 24:00:09.072 |
| Degrees, decimal minutes | 24° 00.1512′ N, 76 1.4271 E |
| UTM | Zone set once for all rows (43R), or per row: 43R 604131.98 2654884.00 |
Formula and method
Decimal degrees and DMS
A decimal degree value splits into whole degrees, then minutes as 60 × the remaining fraction, then seconds as 60 × the remaining fraction of a minute. The reverse is DD = degrees + minutes / 60 + seconds / 3600, negated for south or west. Seconds are rounded last, and a value that rounds to 60″ carries into the minutes.
Latitude and longitude to UTM
UTM is a transverse Mercator projection applied to 60 longitude zones of 6° each. The zone number is floor((longitude + 180) / 6) + 1 and the central meridian is zone × 6 − 183. The projection uses the WGS84 ellipsoid (a = 6,378,137 m, 1/f = 298.257223563), a scale factor of 0.9996 on the central meridian, a false easting of 500,000 m and, in the southern hemisphere, a false northing of 10,000,000 m.
The conversion uses Karney’s 2011 formulation of the Krüger series to sixth order in the third flattening, which is accurate to under a millimetre anywhere inside a zone. The inverse solves the same series and then iterates Newton’s method to recover latitude from the conformal latitude.
Worked example
A wind-turbine location in Agar Malwa district, Madhya Pradesh, is recorded as latitude 24.00252 and longitude 76.023785.
| Decimal degrees | 24.002520, 76.023785 |
|---|---|
| DMS | 24° 00′ 09.072″ N, 76° 01′ 25.626″ E |
| UTM zone | 43R, northern hemisphere. Longitude 76.02° lies in the 72° to 78° band, so zone 43. |
| UTM easting, northing | 604,131.98 m E, 2,654,884.00 m N |
Latitude 24.00252 is 24° plus 0.00252 × 60 = 0.1512′, which is 0′ plus 0.1512 × 60 = 9.072″. The easting sits 104 km east of the zone 43 central meridian at 75°E, which matches the 1.02° of longitude difference at this latitude.
Limitations
- WGS84 only. No datum transformations are applied. Indian coordinates on Everest 1830 / Kalianpur, or any local datum, can differ from WGS84 by hundreds of metres.
- UTM range. UTM is defined from 80°S to 84°N. Polar coordinates use the UPS grid, which this tool does not produce.
- Zone edges. Points projected into a neighbouring zone are supported, but the projection distortion grows with distance from that zone’s central meridian.
- Input precision. The output cannot be more precise than the input. A coordinate given to three decimal places of a degree is only known to about 100 m.
- Screening use. This is a conversion utility, not a survey deliverable. Verify results in your GIS before using them in permits or construction drawings.
Frequently asked questions
What is the difference between decimal degrees and DMS?
Both describe the same angle. Decimal degrees write latitude 24.00252° as one number. Degrees, minutes, seconds (DMS) split the fraction into 60ths: 24° 00′ 09.072″ N. GIS software and spreadsheets prefer decimal degrees; survey documents, land records and older maps often use DMS.
Which datum does this converter use?
WGS84, the datum used by GPS, Google Earth and almost every modern GIS dataset. UTM values are computed on the WGS84 ellipsoid (EPSG:326xx north, EPSG:327xx south). Coordinates recorded on an older datum such as Everest 1830 / Kalianpur will not match without a datum transformation.
How is the UTM zone chosen?
The zone is floor((longitude + 180) / 6) + 1, which gives 60 zones of 6° each. The converter also applies the two official exceptions: zone 32V is widened over southern Norway, and zones 31X to 37X are adjusted around Svalbard. You can override the zone to project a point into a neighbouring zone when a project straddles a boundary.
Which UTM zones cover India?
India spans longitudes 68°E to 97°E, so it falls in zones 42N to 47N. Gujarat and western Rajasthan mostly sit in 42N and 43N, Madhya Pradesh in 43N and 44N, Tamil Nadu and Andhra Pradesh in 44N, and the north-eastern states in 45N and 46N.
What do the band letter and hemisphere mean?
UTM proper only needs the zone number and hemisphere. The band letter (C to X, skipping I and O) is an 8° latitude band from the military grid reference system and is a convenient way to encode the hemisphere: letters N and above are north of the equator. When you type a band letter in the zone field, the hemisphere is set from it.
How accurate are the conversions?
The transverse Mercator series used here is accurate to well under a millimetre across a full UTM zone. The practical limit is the precision of your input: five decimal places of a degree is roughly 1 m, six is roughly 0.1 m.
Can I convert many coordinates at once?
Yes. Paste any number of rows straight from a spreadsheet. The grid works like a sheet: select a range, copy it back with Ctrl+C or ⌘C, drag to fill, or download CSV. For whole project datasets, reneGIS Windmill Micrositing processes complete turbine layouts.
Related tools
- UTM Zone Finder
Search a place or drop a pin on the map to get its UTM zone, band, central meridian and EPSG code, with the Indian state it falls in.
- Coordinate Distance Calculator
Paste pairs of coordinates in DD, DMS or UTM and get the distance in metres, km, miles and nautical miles with the compass bearing, on WGS84, drawn on a map.
- Wind Turbine 5D / 7D Spacing CalculatorComing soon
Turn a rotor diameter into 5D and 7D spacing distances for screening turbine layouts.
- Wind Turbine Distance CheckerComing soon
Check the distance between two turbines in metres and rotor diameters against 5D and 7D thresholds.
Need to analyze an entire wind project?
reneGIS Windmill Micrositing checks turbine spacing, competitor proximity and directional wake risk across your whole project, and exports KML maps for Google Earth.