What is the Degree Calculator?
The degree calculator is a free online tool that helps you work out degree quickly and accurately. It uses the standard formula Convert between degrees, radians and gradians (180 deg = pi rad = 200 grad) and shows the result instantly as you type, along with a full breakdown so you can see exactly how the answer was reached.
How to use this calculator
- Enter the angle.
- Choose from and to units.
- See the result.
Formula used
Convert between degrees, radians and gradians (180 deg = pi rad = 200 grad)Explanation of each input
- Angle value โ the angle value used in the calculation.
- From โ the from used in the calculation.
- To โ the to used in the calculation.
Understanding your result
- Converted angle โ the calculated converted angle.
Step-by-step calculation
For the example values 90 deg to rad:
- Apply the formula:
Convert between degrees, radians and gradians (180 deg = pi rad = 200 grad) - Substitute the values: 90 x pi/180
- Result: about 1.5708
Worked example
| Inputs | 90 deg to rad |
|---|---|
| Working | 90 x pi/180 |
| Result | about 1.5708 |
Benefits and practical uses
This calculator saves you time and reduces errors when you need degree. It is useful for students, professionals and anyone who wants a fast, reliable answer without manual calculation. Results update instantly, work in your browser and can be copied or shared in one click.
Assumptions and limitations
- Standard angle definitions.
Frequently asked questions
How many degrees in a radian?
One radian is about 57.2958 degrees.
Disclaimer: Results are provided for general information. Please verify important figures independently.