Decimal to DMS Converter

Convert geographic coordinates between Decimal Degrees (DD), Degrees-Minutes-Seconds (DMS), and Degrees Decimal Minutes (DDM) formats — with a Google Maps link.

Use the Decimal to DMS Converter

Decimal Degrees Input

Enter coordinates on the left and click Convert to see the result

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Summary

Convert geographic coordinates between Decimal Degrees (DD), Degrees-Minutes-Seconds (DMS), and Degrees Decimal Minutes (DDM) formats — with a Google Maps link.

How it works

  1. Enter latitude and longitude in Decimal Degrees (e.g. 40.7128, -74.0060).
  2. The tool converts each value using the formula: degrees = floor(|dd|), minutes = floor((|dd| - degrees) * 60), seconds = ((|dd| - degrees) * 60 - minutes) * 60.
  3. Negative latitude becomes S (South); negative longitude becomes W (West).
  4. DDM format keeps degrees whole and expresses the remainder as decimal minutes.
  5. Switch to DMS-to-DD mode to go in reverse.
  6. Click the Google Maps link to open the coordinates on the map.

Use cases

  • Convert GPS coordinates for navigation or mapping software.
  • Translate survey data from DD to DMS for official documents.
  • Verify coordinate formats before entering them into GIS systems.
  • Share a precise Google Maps link for any lat/lng pair.
  • Cross-check coordinates from astronomy, drone, or hiking apps.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu