🌍 Bi-Directional Coordinate Converter: DMS ↔ Decimal Degrees

Overview

The Bi-Directional Coordinate Converter is an interactive web application built with R Shiny that allows users to convert geographic coordinates between:

• DMS (Degrees, Minutes, Seconds) — commonly used in field data collection and navigation
• Decimal Degrees (DD) — the standard in GIS, remote sensing, and web mapping

This app supports batch conversions through CSV file uploads and includes a live preview and download option for converted data. Input format is auto-detected based on the uploaded file’s column names.

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✨ Key Features

✅ Upload CSV files with coordinates in either DMS or Decimal Degrees 🔄 Automatic detection of input format and correct conversion direction 👀 Instant live preview of uploaded and converted coordinates ⬇️ Download results as a CSV file with both original and converted formats 🎨 Beautiful UI using the Cerulean theme from shinythemes ❤️ Beginner-friendly and easy to use — no GIS experience required!

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🛠️ How It Works

• If your CSV includes columns named Lat and Long, they are treated as DMS and will be converted to Decimal Degrees (Deci_Lat, Deci_Long).
• If your CSV includes Deci_Lat and Deci_Long, they are treated as Decimal Degrees and converted to DMS (Lat, Long).
• If the required columns are not found, the app will display an informative message prompting correct formatting.

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📦 Installation (For Local Use)

To run this app locally in RStudio:

install.packages(c("shiny", "tidyverse", "shinythemes"))

Then open the app file and run it using shiny::runApp().

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🚀 Launch the App

👉 Try it live on shinyapps.io

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🙏 Credits

Special thanks to @bwanamuki, whose original R script served as the foundation for this application.