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Angle Converter – Convert Degrees, Radians & Gradians

Home - Calculators - Unit Converters - Angle Converter – Convert Degrees, Radians & Gradians

June 4, 2026June 1, 2026

Angle Converter

Converted Angle 1.570796
From Unit degree
To Unit radian

Angle Conversion Table

Unit Equivalent in Degrees
1 Radian 57.2958°
1 Gradian 0.9°
180 Degrees π Radians
100 Gradians 90 Degrees

What is Angle Converter?

An Angle Converter is a tool that helps convert angle measurements between degrees, radians, and gradians instantly and accurately.

Angle conversion is commonly used in:

  • mathematics
  • trigonometry
  • engineering
  • physics
  • surveying
  • computer graphics

Different industries and scientific applications use different angle units depending on calculation requirements.


How Angle Converter Works

An Angle Converter calculates:

  • degree conversion
  • radian conversion
  • trigonometric angle conversion
  • mathematical angle transformations

using geometry and trigonometry formulas.

The converter allows users to quickly switch between common angle units such as:

  • degrees (°)
  • radians (rad)
  • gradians (gon)

Degree to Radian Formula

Radians = Degrees × (π / 180)

Radian to Degree Formula

Degrees = Radians × (180 / π)

Common Angle Units

UnitDescription
Degree (°)Standard angle unit
Radian (rad)SI unit of angle
Gradian (gon)Metric angle unit

Angle Conversion Examples

ConversionResult
90°1.5708 radians
180°π radians
360°2π radians
100 gradians90°

Benefits of Using Angle Converter

Instant Angle Conversion

Quickly converts angles between different units.

Accurate Trigonometric Calculations

Supports precise mathematical and engineering calculations.

Useful for Engineering and Mathematics

Widely used in technical and academic applications.

Supports Geometry Calculations

Helps solve geometric and trigonometric problems efficiently.


Applications of Angle Conversion

Trigonometry

Angle conversion is essential for trigonometric functions and calculations.

Geometry

Used in shape measurement and geometric analysis.

Civil Engineering

Engineers use angle measurements in construction and surveying.

Navigation

Navigation systems use angular measurements for direction and positioning.

Astronomy

Astronomers use radians and angular calculations for celestial measurements.

Computer Graphics

Graphics programming often uses radians for rotation and transformations.


Degrees vs Radians vs Gradians

UnitCommon Usage
DegreesDaily measurements
RadiansMathematics and physics
GradiansSurveying and engineering
SI StandardRadians

Why Radians Are Important

Radians are widely used in advanced mathematics and physics because:

  • they simplify trigonometric formulas
  • they are directly related to circle geometry
  • they are the SI standard unit for angles

Many scientific and programming applications prefer radians over degrees.


Who Should Use Angle Converter?

Angle Converters are useful for:

  • students
  • engineers
  • architects
  • mathematicians
  • surveyors
  • physicists
  • programmers

FAQs

  1. How do you convert degrees to radians?

    Degrees are converted to radians by multiplying the angle by π divided by 180.

  2. What is a radian?

    A radian is the SI unit of angle measurement based on circle radius and arc length.

  3. Why are radians used in mathematics?

    Radians simplify trigonometric equations and are naturally related to circular geometry.

  4. What is 180 degrees in radians?

    180 degrees equals π radians.

  5. What is SI unit of angle?

    The SI unit of angle is the radian.

  6. What is gradian measurement?

    A gradian is a metric angle unit where a full circle equals 400 gradians.

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