Conversions

Instant, private, and free

Angle Conversion Calculator.

Convert angles between degrees and radians.

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Results update as you type.

Result: 0.01745329

Result

0.01745329

Use Cases

Math and Trigonometry Homework

Quickly check your conversions between degrees and radians for trigonometric functions, unit circle problems, or calculus assignments.

Example: Convert 45° to radians for a sine function problem.

Engineering and Physics Calculations

Switch between degrees and radians when working with angular measurements in physics, engineering, or computer graphics.

Example: Convert 1.5 radians to degrees for a rotational motion calculation.

Frequently Asked Questions

How do I convert degrees to radians using this calculator?
Select 'DEGREE' in the 'Convert from' dropdown and 'RADIAN' in the 'Convert to' dropdown. Enter the angle in degrees, and the calculator will output the equivalent in radians.
What is the formula for converting radians to degrees?
To convert radians to degrees, multiply the radian value by 180/π. For example, π radians equals 180 degrees. Our calculator does this automatically for you.
Can I convert from radians to degrees with this tool?
Yes, simply set 'Convert from' to 'RADIAN' and 'Convert to' to 'DEGREE'. Enter the angle in radians, and the result will be shown in degrees.

Tips & Common Mistakes

Tips

  • Remember that 180° equals π radians, so you can use this as a mental check for your conversions.
  • If you're converting multiple angles, consider using a spreadsheet or a script, but this calculator is perfect for quick, one-off conversions.
  • Double-check your input unit selection to avoid errors, especially when working with mixed units.
  • For precise results, use the calculator's output as-is; rounding may be needed for your specific application.

Common Mistakes to Avoid

  • Selecting the wrong 'Convert from' or 'Convert to' unit, leading to an incorrect conversion.
  • Forgetting to enter a value before clicking convert, resulting in an error or no output.
  • Assuming that degrees and radians are interchangeable without conversion, which can cause calculation errors.

Last updated: August 13, 2026