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Angle Converter

Convert between degrees, radians, gradians, arcminutes, and arcseconds.

Our free Angle Converter lets you convert between degrees, radians, gradians, arcminutes, and arcseconds. It is built for travelers, cooks, students, scientists, and anyone working across measurement systems who need fast, reliable results without installing software or creating an account.

Angle Converter runs entirely in your browser on CalculatorsPlus — enter your values, get instant results, and copy or share your output in one click. Your data never leaves your device; we do not store inputs on any server.

Switching between metric and imperial units is a daily need worldwide. The angle converter uses standard conversion factors so you get consistent results for recipes, travel, homework, and technical specifications.

Results update in real time as you change inputs, so you can explore "what if" scenarios — adjust one variable at a time to see how it affects the outcome before committing to a purchase, plan, or decision.

This page includes step-by-step instructions, frequently asked questions, and practical tips below the calculator. Bookmark it for repeat use — many unit conversion tasks come up weekly during projects, studies, or financial planning.

Common Uses

  • ✓Convert recipe measurements between US and metric units
  • ✓Translate specs for international projects or products
  • ✓Science and engineering homework unit checks
  • ✓Travel, fitness, and weather temperature conversions

How to Use the Angle Converter

  1. 1

    Enter angle

    Input degrees, radians, or gradians.

  2. 2

    Select output

    Choose the target angle unit.

  3. 3

    Apply result

    Use in math, CAD, navigation, or code.

💡 Tips & Tricks

  • •π rad = 180° is the key relationship to remember.
  • •Compass bearings use degrees from north.
  • •CNC and CAD software may default to degrees or radians — check settings.

Frequently Asked Questions

How do I convert degrees to radians?
Multiply degrees by π/180. Example: 180° = π radians. 90° = π/2 ≈ 1.5708 rad.
What are gradians?
Gradians divide a right angle into 100 units. 400 gradians = full circle. Used in some surveying and European engineering contexts.
How many degrees in a circle?
360 degrees = 2π radians = 400 gradians. One degree = 60 arcminutes; one arcminute = 60 arcseconds.
Why do programmers use radians?
Most programming languages (JavaScript, Python, etc.) use radians for sin(), cos(), and tan(). Convert degrees to radians before calling trig functions.

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