The Util Box

Angle Converter

Free online angle converter. Convert degrees, radians, gradians. Fast, accurate, runs in your browser.

Result
3.1415926536 rad
180° = 3.1415926536rad
All Conversions
rad (radians)3.1415926536
grad (gradians)200
' (minutes of arc)10800
" (seconds of arc)648000
turn (turns)0.5

Trigonometric Values

sin(180°)
1.2246e-16
cos(180°)
-1
tan(180°)
-1.2246e-16
sin⁻¹(180°)
1.2246e-16

Common Angles

Full circle = 360° = 6.2831853072 rad = 400 grad

Straight line = 180° = 3.1415926536 rad = 200 grad

Right angle = 90° = 1.5707963268 rad = 100 grad

Equilateral triangle = 60° = 1.0471975512 rad = 66.6666666667 grad

Pentagon (interior) = 108° = 1.8849555922 rad = 120 grad

Hexagon (interior) = 120° = 2.0943951024 rad = 133.3333333333 grad

Embed this tool

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<a href="https://www.theutilbox.org/tools/angle-converter">Angle Converter by The Util Box</a>

Frequently Asked Questions about Angle Converter

What Is Angle Converter?

Free online angle converter. Convert degrees, radians, gradians. Fast, accurate, runs in your browser. Whether you need a quick calculation, text transformation, or data conversion, this free online converters tool delivers instant results entirely in your browser — no server uploads, no sign-ups, and no data leaves your device.

How to Use the Free Angle Converter Online

  1. Enter your input — type, paste, or select data in the provided field.
  2. Adjust options — tweak any available settings or parameters to match your needs.
  3. Get instant results — output appears immediately as you type or after clicking a button.
  4. Copy or export — use the copy button to grab the result for use elsewhere.

All processing happens client-side using JavaScript, so your information never leaves your computer. This free online converters tool requires no registration and works on any modern browser.

Why Choose Our Free Angle Converter Tool?

  • 100% free — no hidden premium tiers or usage limits.
  • Fully private — runs entirely in your browser; no data is sent to any server.
  • Instant & fast — results appear in milliseconds with zero load times.
  • Works offline — after the first load, the tool is available without an internet connection.
  • No sign-up — open the page and start using it immediately.

Angle Converter — Quick Reference

Feature Details
Category converters
Processing 100% client-side (browser)
Privacy No data leaves your device
Cost Free — no sign-up required
Works Offline Yes (after first load)