Decimal Degrees to Latitude and Longitude Calculator

Formula used

Use the absolute decimal degree value before splitting it into components.

Negative latitude indicates south. Negative longitude indicates west. Positive values indicate north or east.

How to use this calculator

1. Choose decimal degrees, a pasted coordinate pair, or DMS input.
2. Enter latitude and longitude using valid geographic ranges.
3. Select precision, rounding, order, separator, and display options.
4. Add comparison coordinates when distance and bearing are needed.
5. Press the conversion button and review every output format.
6. Copy, print, map, or download the converted coordinate.

Understanding decimal degree coordinates

Decimal degrees express an angular position with one signed number. Latitude measures distance north or south of the equator. Longitude measures distance east or west of the prime meridian. This format is compact and common in mapping software, geographic databases, phones, navigation systems, and web links.

A latitude can range from minus ninety to positive ninety. A longitude normally ranges from minus one hundred eighty to positive one hundred eighty. A negative latitude is south. A negative longitude is west. The sign is therefore part of the location and should never be removed without replacing it with a hemisphere letter.

DD, DDM, and DMS formats

DD means decimal degrees. DDM means degrees and decimal minutes. DMS means degrees, minutes, and seconds. All three formats can represent the same position. The calculator preserves the coordinate while changing its notation. Small differences may appear when output is rounded to fewer decimal places.

For example, 33.6844 degrees north becomes 33 degrees, 41 minutes, and 3.84 seconds north. The same value becomes 33 degrees and 41.064 minutes north in DDM format. Longitude is processed with the same steps, but its valid range is wider.

Precision and practical accuracy

More decimal places describe a smaller geographic area. One decimal place is broad. Five decimal places often describe a location within roughly one meter. Longitude spacing changes with latitude because meridians converge toward the poles. The precision estimate shown above accounts for that change.

Extra digits do not guarantee that a source measurement is truly accurate. A phone, survey receiver, map pin, or imported dataset may have its own measurement limits. Preserve source precision when possible, but avoid implying certainty that the original data did not provide.

Coordinate order matters

Many applications display latitude first and longitude second. GeoJSON uses longitude first and latitude second. Mixing these orders can move a point to another region or make the pair invalid. The order selector changes displayed pairs and pasted input interpretation. Individual latitude and longitude values remain labeled.

Validation and normalization

The calculator checks numeric input, valid ranges, incomplete DMS values, and sign conflicts. Optional longitude normalization wraps values into the standard range. For example, 190 degrees becomes minus 170 degrees. This is useful for global calculations, but it should be used intentionally.

Maps and approximate addresses

The map marker displays the converted point. The address lookup uses a public reverse-geocoding request from the browser. Results are approximate and depend on available map data. A coordinate may return a road, neighborhood, city, region, or country instead of a precise building.

UTM, MGRS, geohash, and Plus Codes

UTM divides much of the world into numbered zones and reports easting and northing in meters. MGRS adds grid letters and compact numeric references. Geohash converts a coordinate into a hierarchical text code. Plus Codes provide another location code that can be shared without a street address.

UTM and MGRS are based on the WGS 84 ellipsoid in this calculator. Standard UTM and MGRS coverage excludes the extreme polar regions. Specialized polar systems are normally used there. Grid outputs are helpful, but professional surveying work may require official transformation software and local datums.

Batch conversion workflow

The batch tool reads one coordinate pair per line. It validates each row separately, converts valid rows, and keeps error messages beside invalid rows. CSV uploads are processed locally by browser code. The exported file includes decimal degrees, DMS values, geohash, and status information.

Distance and bearing

Optional comparison coordinates produce a great-circle distance using the haversine formula. The initial bearing describes the starting direction from the first point toward the second. Actual travel distance can be longer because roads, terrain, borders, and routes do not follow a perfect great-circle path.

Common coordinate mistakes

Frequent problems include reversed order, missing negative signs, contradictory hemisphere letters, minutes equal to sixty, seconds equal to sixty, and copied punctuation. Another common mistake is placing latitude beyond ninety degrees. Use the validation message to identify the exact field that needs correction.

Frequently asked questions