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Coordinate Converter

100% Free

Convert latitude and longitude between decimal degrees (DD), degrees-minutes-seconds (DMS), and degrees-decimal-minutes (DMM).

DD · DMS · DMM
Live Two-Way
100% Client-Side
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Parsed: 19.076° (DD, DMS, or DMM accepted)

Parsed: 72.8777°

Decimal Degrees (DD)
19.076000, 72.877700
Degrees Minutes Seconds (DMS)
19°4'33.6"N 72°52'39.72"E
Degrees Decimal Minutes (DMM)
19°4.56'N 72°52.662'E

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How to Use

  1. 1 Type a latitude in any format — decimal degrees, DMS, or DMM
  2. 2 Type a longitude the same way (or press Use my location)
  3. 3 Pick how many decimal places you want for the output
  4. 4 Read the coordinate in all three notations at once
  5. 5 Copy the format you need with one click

Features

  • Converts between DD, DMS, and DMM in both directions
  • Accepts mixed input — paste any common coordinate format
  • Handles hemispheres with N/S/E/W or signed values
  • Adjustable precision for seconds and decimals
  • Optional Use my location button reads your GPS position
  • Runs entirely in your browser — your location is never uploaded

Why it Matters

Maps, GPS units, surveying tools, and aviation charts all describe the same point on Earth in different notations — one app shows 19.0760°, another shows 19°4'33.6"N. Copy the wrong format into the wrong field and you can land hundreds of metres off. Converting cleanly between decimal degrees and the minutes-seconds forms means the coordinate you paste is the place you mean.

★★★★★

Use Cases

Maps & GPS

Move a coordinate between Google Maps, a GPS device, and a spreadsheet

Surveying & GIS

Match the notation your field equipment or GIS software expects

Aviation & Marine

Convert chart coordinates into the DMS form navigation systems use

Learn the Notations

See exactly how DD, DMS, and DMM relate to one another

What this tool does

The Coordinate Converter translates a latitude/longitude between the three notations people actually use: decimal degrees (DD), degrees-minutes-seconds (DMS), and degrees-decimal-minutes (DMM). Paste a coordinate in any of those forms and it shows all three at once, ready to copy.

How it works

Every format is just a different way of writing the same angle. The tool parses your input into decimal degrees internally, then renders DMS and DMM from it — handling hemispheres (N/S/E/W or a minus sign) and rounding to the precision you choose.

Privacy

Everything runs locally via the pure convertCoordinates function. If you use the location button, your position is converted in the browser and never uploaded.

Frequently Asked Questions

What's the difference between DD, DMS, and DMM?
Decimal Degrees (DD) writes a coordinate as a single decimal number, like 19.0760. Degrees-Minutes-Seconds (DMS) splits it into 19°4'33.6", the traditional sexagesimal form. Degrees-Decimal-Minutes (DMM) is a hybrid — whole degrees plus decimal minutes, like 19°4.560' — common in marine and aviation use.
Should latitude or longitude come first?
Latitude first, then longitude — that's the convention in DD and DMS notation (e.g. 19.0760, 72.8777). Note that some mapping APIs reverse this internally, so always check which field is which.
How precise do my decimals need to be?
Each extra decimal place in decimal degrees is roughly 10× more precise. Five decimal places (about 1 metre) is plenty for most uses; six places resolves to roughly 0.1 metre. The precision control lets you match the accuracy your source actually has.
Does Use my location share my position?
Only with your browser, and only after you grant permission. The coordinate is converted locally and never sent anywhere — you can confirm this in the Network tab.
📖

Want to understand the conversions?

Browse all guides →
Latitude & Longitude Formats
coordinates

Latitude & Longitude Formats: DD, DMS, and DMM Explained

A clear guide to the three coordinate notations — decimal degrees, degrees-minutes-seconds, and degrees-decimal-minutes — how they relate, and how to convert between them.

23 Jun 2026

5 min read

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