Angle Conversion - Convert Degrees, Radians, Gradians, and More

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Understanding Angle Measurements

Angle measurement is fundamental in geometry, navigation, and various technical fields. The radian (rad) is the base unit of angle in the International System of Units (SI), while degrees (°) and gradians (grad) are commonly used in different applications. Understanding angle conversions is essential for mathematics, engineering, and navigation.

Common Angle Units

SI Units

  • Radian (rad) - Base unit
  • Milliradian (mrad) - 1/1000 of a radian
  • Degree (°) - π/180 radians
  • Minute (') - 1/60 of a degree

Other Units

  • Gradian (grad) - 400 gradians = 360°
  • Second ('') - 1/60 of a minute
  • Turn (rev) - 360° or 2π radians
  • Quadrant - 90° or π/2 radians

Common Applications

FieldCommon UnitsTypical Uses
MathematicsRadians, degreesTrigonometry, calculus
NavigationDegrees, minutesCompass bearings, GPS
EngineeringDegrees, radiansMechanical design, CAD
AstronomyDegrees, arcminutesCelestial coordinates

Conversion Tips

  • 1 radian equals approximately 57.2958 degrees
  • 1 degree equals π/180 radians
  • 1 gradian equals 0.9 degrees
  • Remember that angles can be positive or negative

Angle Conversions

ConversionFormulaQuick Answer
degree to radian1° = π/180 radiansMultiply degrees by 0.0174533
radian to degree1 rad = 180/π degreesMultiply radians by 57.2958
degree to gradian1° = 1.11111 gradiansMultiply degrees by 1.11111
gradian to degree1 grad = 0.9 degreesMultiply gradians by 0.9
degree to minute1° = 60 arcminutesMultiply degrees by 60
minute to degree1 arcminute = 0.0166667 degreesDivide arcminutes by 60
degree to second1° = 3600 arcsecondsMultiply degrees by 3600
second to degree1 arcsecond = 0.000277778 degreesDivide arcseconds by 3600
radian to gradian1 rad = 63.662 gradiansMultiply radians by 63.662
gradian to radian1 grad = 0.01570796 radiansMultiply gradians by 0.01570796

Our angle conversion tool provides accurate conversions between all common units of angle measurement, making it easy to switch between different systems. Whether you're working in mathematics, navigation, or engineering, our converter ensures precise angle conversions for any application.

Angle Conversion Questions

Everything you need to know about angle measurements and conversions

Have more questions? Our conversion tools are designed to be accurate and user-friendly.