Calculator DMS
Convert geographic coordinates between DMS and decimal degrees quickly and accurately with this free online tool for professionals and hobbyists.

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About This Tool
The Calculator DMS is a precise, user-friendly online tool designed for converting geographic coordinates between Degrees-Minutes-Seconds (DMS) format and decimal degrees. Its intuitive interface allows users to select the conversion mode, input respective coordinate data, and instantly receive accurate results. This tool is essential for professionals in aviation, surveying, GIS, and mapping industries, as well as enthusiasts working with GPS data.
By supporting robust validation and format flexibility, Calculator DMS helps minimize manual errors during data entry. Users can perform single or multiple conversions, save their history, and easily copy or export results. Whether you need to convert coordinates for navigation, mapping projects, or geographic analysis, this tool simplifies complex calculations into seconds.
Designed with accessibility in mind, it features a modern, responsive layout suitable for desktop and mobile devices. The tool’s core functionality revolves around parsing user-input coordinates accurately, applying mathematical formulas for conversion, and displaying results in a clear, well-formatted manner. No advanced technical knowledge is required—just input, convert, and get your precise results instantly.
How to Use
1. Select the conversion mode from the dropdown menu.
2. Enter your coordinate in the input field, using the correct format (e.g., 123° 34' 56" N).
3. Click the 'Convert' button to process.
4. View the output result in the display panel.
5. Use the copy button to copy results, or reset to perform another conversion.

FAQs/Additional Resources
Find Quick Answers
How do I format coordinates in DMS for conversion?
Can I convert multiple coordinates at once?
What should I do if my input is invalid?
Is this tool accurate for professional mapping?
Does the tool support negative coordinates for western or southern hemispheres?
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