Radians to Degrees (rad to °)

1 rad ≈ 57.2958 °. Type any value to convert it.

1 radian =

57.29577951 °

degrees

Conversion factor
1 rad ≈ 57.29577951 °
Degrees, minutes, seconds
57° 17′ 44.81″

Fix the highlighted field to update the result.

Show in all common units
1 rad in other units
UnitValue
degree (°)57.29577951 °
radian (rad)1 rad
gradian (gon) (gon)63.66197724 gon
arcminute (′)3,437.746771 ′
arcsecond (″)206,264.8062 ″
turn (turn)0.1591549431 turn
mil (NATO) (mil)1,018.591636 mil

How to convert radians to degrees

1 rad ≈ 57.2958 °

1 rad = 180/π degrees exactly, about 57.29578°, because 1° = π/180 rad (SI Brochure, Table 8). Multiply radians by 180/π.

Examples

  • 1 rad = 57.29578 °: one radian
  • 6.2831853 rad = 360 °: two pi radians, one full revolution
  • 0.1 rad = 5.729578 °: a small angle from a physics problem

Radians to degrees chart

Radians to degrees
Radians (rad)Degrees (°)
0.1 rad5.729578 °
1 rad57.29578 °
2 rad114.59156 °
3 rad171.88734 °
4 rad229.18312 °
5 rad286.4789 °
6.2831853 rad360 °
10 rad572.9578 °
15 rad859.43669 °
20 rad1,145.9156 °
25 rad1,432.3945 °
50 rad2,864.789 °
75 rad4,297.1835 °
100 rad5,729.578 °

Common mistakes

  • 3.14 rad is not exactly 180°; it is about 179.91°. Use π itself when an exact answer is needed.

Frequently asked questions

How many degrees is 1 radian?

About 57.2958°. One radian is 180/π degrees: the angle at which the arc length equals the circle’s radius.

How do I convert radians to degrees?

Multiply by 180/π, about 57.29578. For example, 2 rad × 57.29578 ≈ 114.59°.

What is π/4 radians in degrees?

Exactly 45°. Replace π with 180° and simplify: 180 ÷ 4 = 45.

Why do maths and physics use radians?

Because formulas such as arc length s = rθ and the derivative of sin x take their simplest form only when angles are in radians.