How to Convert Decimal Degrees to DMS in JavaScript

📰 Dev.to · echoluoluo

Learn to convert Decimal Degrees to Degrees, Minutes, and Seconds (DMS) in JavaScript for geographic coordinate representation

intermediate Published 9 Aug 2026

Action Steps

Define a function to convert Decimal Degrees to DMS
Use the Math library to extract degrees, minutes, and seconds from the decimal value
Implement rounding and formatting to ensure accurate and readable output
Test the function with sample Decimal Degrees values
Apply the conversion function to real-world geographic coordinate data

Who Needs to Know This

Developers working with geographic information systems (GIS) or location-based services can benefit from this conversion technique to display coordinates in a more human-readable format

Key Insight

💡 Decimal Degrees can be converted to DMS by separating the degree, minute, and second components using mathematical operations