← Toolz / Converters / Angle Converter

Angle Converter

Your inputs

Mils here are NATO mils — 6,400 to a full turn — not the 6,283 true milliradians in a circle. Check which system a compass, sight or drawing expects.

Live results

Auto-updates
Result visualization

Convert degrees to radians, gradians, turns, arcminutes, arcseconds and NATO mils — for geometry, navigation, surveying, astronomy and optics.

100% free · No sign-up · No daily limits · No watermarks · Processed in your browser — files never leave your device

UNDERSTAND YOUR RESULTS

Angle Converter guide

Convert degrees to radians, gradians, turns, arcminutes, arcseconds and NATO mils — for geometry, navigation, surveying, astronomy and optics.

How to use this tool

  1. Enter the value you want to convert.
  2. Choose the source and destination units. Use Swap to reverse them.
  3. Compare the live equivalents, then copy a result or download the table as CSV.

A worked example

A right angle is 90 degrees: pi/2 radians, 100 gradians, or exactly a quarter of a full turn.

What you can do with this tool

How it works

Result = input × source-unit factor ÷ destination-unit factor. All factors are relative to the same base unit; intermediate values are not rounded.

Frequently asked questions

Which unit definitions are used?

Degrees, Radians, Turns, Gradians, Arcminutes, Arcseconds, Mils (NATO). Read the labels carefully: regional or decimal/binary variants are separate choices.

Why do calculators and physics use radians?

In radians, arc length equals radius times angle, which keeps calculus and wave formulas simple. A full turn is 2 pi radians — about 6.2832.