Free Angle Converter that works offline
Convert geometry, navigation and programming angles without manually multiplying by pi.
What this angle converter does
A full turn equals 360 degrees, 2π radians or 400 gradians. Arcminutes and arcseconds divide a degree into sixty parts each.
How to use the Angle Converter
- Enter or paste a numeric angle and source and target units into the tool.
- Adjust the available options so they match the format and result you need.
- Choose Convert angle and review the equivalent angular measure before using it.
- Copy or download the result, then clear the page if the input was sensitive.
Common uses
- Preparing trigonometric input
- Converting map coordinates
- Reading survey angles
- Checking CSS and graphics rotations
Private processing and offline access
This tool does not submit your input to a conversion server. Processing takes place inside the browser using local JavaScript and standard Web APIs. After the PWA has been installed or cached, the page and its core features remain available without an internet connection. Closing or clearing the page removes unsaved input; the tool does not create an account or cloud history.
Tips for accurate results
- Many programming APIs expect radians.
- Negative and values above one turn are preserved.
- Use the coordinates converter for latitude and longitude notation.
Frequently asked questions
Does this tool upload my data?
No. Angle Converter processes its input in the current browser and does not submit it to a conversion API.
What input does the Angle Converter accept?
Finite positive or negative values are supported. Results are not automatically wrapped to one revolution.
Can I use this tool offline?
Yes. Once the Offline Tools PWA has cached the page, the core feature works without an internet connection.