Angle Converter

What Is the Angle Converter?

The Angle Converter converts an angle from one unit to another. The workspace offers Degrees, Radians, Gradians, Arcminutes, and Arcseconds. Enter a number, choose the starting unit and the target unit, then click Process. The result shows the converted value and a list of equivalents in the other angle units, with Copy and Download controls for the result.

How to Use the Angle Converter

1. Enter a number in the Value field. For example, enter 180.
2. Choose the starting unit in the From list. For example, choose Degrees.
3. Choose the target unit in the To list. For example, choose Radians.
4. Click Process. The result appears below the button.
5. Use the swap button (⇄) to reverse the From and To units without retyping the value.
6. Use Copy to copy the result, or Download to save it.

Worked Example

Entering 180 with From set to Degrees and To set to Radians and clicking Process produced: 180 Degrees = 3.141593 rad. The same result also listed 180 Degrees = 10800.00 arcmin and 180 Degrees = 200.00 gradians. This matches the standard relation that a straight angle is 180 degrees, which equals pi radians (about 3.141593).

Limitations

• This tool converts angle units only. It does not solve triangles, compute bearings, or convert slopes.
• The result does not update as you type. You must click Process after entering a value or changing a unit.
• Displayed values are rounded to the digits shown on screen. For surveying or engineering work, re-check the rounded result.
• Degree, radian, gradian, arcminute, and arcsecond values describe the same angle in different units. They do not describe direction, position, or rotation speed.
• The workspace does not offer turns as a unit. To convert turns, multiply or divide by 360 degrees first (1 turn = 360 degrees).
• Always check the unit labels before copying a result into homework, a drawing, or a report.

Frequently Asked Questions

Which angle units does this tool support?

The workspace lists Degrees, Radians, Gradians, Arcminutes, and Arcseconds in the From and To lists.

Do I need to click Process?

Yes. Enter the value, choose both units, then click Process to show the result.

How many radians are in 180 degrees?

180 degrees equals pi radians, shown by the tool as 3.141593 rad.

What is the difference between arcminutes and arcseconds?

One degree equals 60 arcminutes, and one arcminute equals 60 arcseconds. So one degree equals 3,600 arcseconds.