Question 1

How to convert degrees to radians?

Accepted Answer

Multiply degrees by π/180 (0.0174533). Example: 90° × 0.0174533 = 1.5708 radians. 180° = π radians.

Question 2

How to convert radians to degrees?

Accepted Answer

Multiply radians by 180/π (57.2958). Example: 1 radian × 57.2958 = 57.2958°. π radians = 180°.

Question 3

What is a gradian?

Accepted Answer

A gradian (gon) divides a right angle into 100 parts. 1 gradian = 0.9 degrees. 400 gradians = full circle (360°). Used in surveying and some European countries.

Question 4

What is the difference between degree, minute, and second?

Accepted Answer

1 degree = 60 minutes ('), 1 minute = 60 seconds (''). Used for precise navigation and astronomy. Example: 30° 15' 30'' = 30.2583 degrees.

From	To	Value
180°	Radians	π rad (3.14159 rad)
90°	Radians	π/2 rad (1.5708 rad)
1 Radian	Degrees	57.2958°
1 Gradian	Degrees	0.9°
1 Arcminute	Degrees	0.0166667°
1 Arcsecond	Degrees	0.00027778°

Angle Converter

Angle Converter

Converted Angle

About Angle Converter

Common Angle Conversions

Frequently Asked Questions

Other Calculators

Unit Converter

Length Converter

Weight Converter

Temperature Converter

Area Converter

Volume Converter