3. Target Distance and Bearing

Optional: enter a second coordinate to calculate great-circle distance and initial bearing from the converted coordinate to the target.

4. Detailed Conversion Table

Batch Conversion Output

Batch mode converts one coordinate pair per line. Named lines such as Dubai: 25.2048, 55.2708 are supported.

Latitude/Longitude Converter Formulas

Geographic coordinates are commonly written in three closely related angular formats: Decimal Degrees, Degrees Decimal Minutes, and Degrees Minutes Seconds. The calculator converts between them using the fact that one degree contains sixty minutes and one minute contains sixty seconds.

To convert DMS into Decimal Degrees, use:

If the coordinate is south or west, the decimal value is negative:

To convert Decimal Degrees into DMS:

To convert Decimal Degrees into Degrees Decimal Minutes:

Radians are useful in programming, spherical trigonometry, distance calculations, and bearing formulas:

The optional distance calculator uses the haversine formula:

The initial bearing formula is:

Complete Guide to Latitude and Longitude Conversion

Latitude and longitude are the most common way to describe a precise position on Earth. Latitude measures how far north or south a place is from the equator. Longitude measures how far east or west a place is from the prime meridian. Together, a latitude and longitude pair can identify a city, building, trail point, school, field site, landmark, prayer direction reference, GPS position, drone waypoint, photo location, shipping point, research location, or map marker.

Latitude values range from \(-90^\circ\) to \(90^\circ\). The equator is \(0^\circ\). The North Pole is \(90^\circ\text{N}\), and the South Pole is \(90^\circ\text{S}\). In signed decimal form, northern latitudes are positive and southern latitudes are negative. Longitude values range from \(-180^\circ\) to \(180^\circ\). Longitudes east of the prime meridian are positive, and longitudes west of the prime meridian are negative.

A coordinate can be written in several formats. Decimal Degrees, usually abbreviated DD, is the format most common in web maps, GPS APIs, databases, spreadsheets, and programming. An example is \(25.204800, 55.270800\). This means latitude \(25.204800^\circ\) and longitude \(55.270800^\circ\). Decimal degrees are compact, easy to store, and easy to sort.

Degrees Minutes Seconds, usually abbreviated DMS, is an older and very readable navigation format. The same coordinate can be written as \(25^\circ 12' 17.28''\text{N}, 55^\circ 16' 14.88''\text{E}\). This format separates the whole degrees, minutes, and seconds. It is common in surveying documents, aviation, maritime navigation, older maps, classroom geography, and technical coordinate references.

Degrees Decimal Minutes, often abbreviated DDM, is a middle format. It keeps whole degrees but expresses the minute part as a decimal. The same latitude can be written as \(25^\circ 12.2880'\text{N}\). DDM is common in some marine, GPS, and field-navigation contexts. This converter outputs all three formats so users can move between map apps, spreadsheets, reports, classroom worksheets, and field devices.

The key conversion idea is simple: there are 60 minutes in one degree and 60 seconds in one minute. Therefore, there are 3600 seconds in one degree. To convert from DMS to decimal degrees, divide minutes by 60, divide seconds by 3600, and add the parts. To convert from decimal degrees to DMS, keep the whole degree part, multiply the remaining decimal part by 60 to get minutes, then multiply the remaining minute decimal by 60 to get seconds.

Hemisphere letters are just another way to show sign. North and east are positive. South and west are negative. For example, \(40.7128^\circ\text{N}\) is \(+40.7128^\circ\), while \(74.0060^\circ\text{W}\) is \(-74.0060^\circ\). Many coordinate mistakes happen when the west longitude sign is forgotten. New York is around \(40.7128, -74.0060\), not \(40.7128, 74.0060\). The second point would be in a completely different part of the world.

Latitude must always be written before longitude in many human geography contexts, but some technical formats reverse the order. GeoJSON coordinates use longitude first and latitude second: \([longitude, latitude]\). WKT point syntax also commonly uses \(POINT(longitude\ latitude)\). This is why the calculator clearly labels coordinate order and outputs GeoJSON and WKT separately. A common bug in mapping projects is accidentally swapping latitude and longitude.

Decimal precision matters. A coordinate rounded to one decimal degree is very coarse. A coordinate rounded to six decimal places is usually precise enough for many map-marker and GPS-style tasks. However, more decimals do not always mean more real accuracy. If a phone GPS has only 20 metre accuracy, displaying ten decimal places does not make the real location accurate to the millimetre. Precision is about formatting; accuracy is about measurement quality.

This calculator includes a GPS button for convenience. When the user grants permission, the browser can provide latitude, longitude, and sometimes accuracy, altitude, and speed. Browser geolocation is useful, but it has limits. Indoors, coordinates may come from Wi-Fi or cell-tower estimation. In dense cities, tall buildings can reflect signals. On desktop computers, location may be approximate. For serious surveying, field engineering, or legal boundaries, use professional geospatial methods.

The flexible parser is designed for common coordinate strings. It can interpret decimal pairs such as 25.2048, 55.2708, DMS pairs such as 25°12'17.28"N, 55°16'14.88"E, and colon-separated formats such as 25:12:17.28 N, 55:16:14.88 E. The safest format is still a comma-separated pair with clear hemisphere letters or signs.

Batch conversion is useful for teachers, developers, SEO tool pages, map markers, data cleaning, research reports, and content creators. You can paste one coordinate pair per line and export the result as CSV. This is helpful when converting a list of landmarks, school locations, customer addresses that already have coordinates, travel points, GIS exports, or field observations.

The target distance and bearing section is included because coordinate conversion often leads to the next question: how far apart are two points and what direction is the second point from the first? The calculator uses a spherical Earth approximation with the haversine formula. It also calculates the initial great-circle bearing, which is the direction you would initially face from the first point toward the second point.

The initial bearing is not always the same as drawing a straight line on a flat map. Earth is curved, and flat map projections distort angles, areas, and distances. Great-circle calculations model travel along the surface of a sphere. They are useful for educational navigation, geography, Qibla-style direction tools, distance comparisons, and programming examples.

Coordinate conversion is not the same as datum transformation. This calculator converts notation formats: DD, DDM, DMS, radians, GeoJSON, WKT, and URI-style output. It does not transform between geodetic datums such as WGS 84, NAD 83, NAD 27, local national datums, UTM zones, or State Plane systems. Datum transformations require geodetic models and, in many cases, region-specific transformation parameters.

For most web users, WGS 84-style latitude and longitude is the common expectation because GPS and many web maps use global geographic coordinates. Still, professional GIS users should always check the source coordinate reference system before combining datasets. Two coordinates can look similar while referring to different datums, which may create offsets on a map.

In education, latitude and longitude conversion is a strong applied-math topic. It includes ratios, base-60 conversion, signs, angles, rounding, units, trigonometry, radians, spherical geometry, and data formatting. Students can learn why \(0.5^\circ\) equals \(30'\), why \(0.25'\) equals \(15''\), and why west longitude is negative in signed decimal notation.

For web developers, this tool solves common practical problems. APIs may return decimal degrees. A client may send DMS values. A spreadsheet may contain mixed strings. GeoJSON may require longitude first. A map search URL may need a decimal pair. A database may need numeric signed values. This page provides a clean conversion workflow and shows each output clearly.

For content and SEO, the page should answer the user’s intent quickly. Many visitors search for “latitude longitude converter,” “decimal to DMS,” “DMS to decimal,” “convert coordinates,” or “GPS coordinate converter.” A strong page should include a working converter, examples, formulas, error handling, copy buttons, batch tools, explanations, FAQ, and schema. This section includes those components in one WordPress-ready block.

This converter is not an exam score calculator. There is no score table, score guideline, or next exam timetable for coordinate conversion. The tool can support geography, geometry, navigation, GIS, programming, astronomy, drone mapping, field science, and applied mathematics, but official exam schedules and scoring rules must come from the relevant school or exam board.

How to Use the Latitude/Longitude Converter

1. Choose a conversion mode. Select Decimal Degrees, DMS, DDM, flexible parser, or batch conversion.
2. Enter latitude and longitude. Use valid latitude values from \(-90^\circ\) to \(90^\circ\) and longitude values from \(-180^\circ\) to \(180^\circ\).
3. Set precision. Choose decimal places and seconds precision based on your output needs.
4. Click Convert Coordinates. The tool outputs DD, DMS, DDM, radians, GeoJSON, WKT, and URI formats.
5. Use GPS if needed. On HTTPS, allow location permission to fill your current coordinates.
6. Calculate distance and bearing. Enter a target coordinate to estimate great-circle distance and initial bearing.
7. Copy or download. Export results as text or CSV for spreadsheets, maps, reports, or coding projects.

Score, Course, and Exam Table Note

Reference Links

Useful references: NOAA latitude/longitude distance calculator format note, NOAA NGS Coordinate Conversion and Transformation Tool, MDN Geolocation getCurrentPosition, and Great-circle formulas.

Latitude/Longitude Converter FAQ