Convert Degree to Radian (deg to rad)

Instant precision conversion from Degree (deg) to Radian (rad) in Angle.

⚡ Direct Answer: 1 deg to rad

1 Degree (deg) equals approximately 0.017453 Radian (rad).

Formula: rad ≈ deg × 0.01745329

To convert from Degree to Radian, multiply the quantity by approximately 0.017453 (or divide by approximately 57.29578).

📐 How Degree (deg) and Radian (rad) Relate

In metrology, angle quantifies planar angular separation and circular rotation. Within this domain, Degree (deg) and Radian (rad) originate from Sexagesimal degrees (360°), radians ($2\pi$), gradians (400 gon), and arcminutes. Standardized under ISO 80000-3 with $\pi$ radians spanning a 180-degree half-circle.

Because both Degree and Radian belong to the linear angle domain, conversion between them is strictly proportional. The exact conversion factor (0.01745329) guarantees zero precision drift across mathematical calculations.

Standard Metrology: Sexagesimal degrees (360°), radians ($2\pi$), gradians (400 gon), and arcminutes

🎯 Common Practical Applications

Computer Graphics & Game Development

Passing rotational angles into trigonometric functions (`Math.sin`, `Math.cos`) in 3D graphics engines.

Robotics Kinematics & Motion Planning

Calculating robotic arm joint angle rotations and end-effector coordinate transformations.

Physics & Orbital Mechanics Simulations

Computing satellite orbital trajectories, centripetal acceleration, and angular momentum.

Reverse Pair Available

Reverse Conversion Option

Looking to calculate the reverse direction? Switch directly to our dedicated Radian to Degree converter.

Convert Radian to Degree (rad to deg) →

Degree to Radian Conversion Table (1 to 1000)

Degree (deg) to Radian (rad) and Reciprocal Equivalents
Degree (deg) Radian (rad) Radian (rad) Degree (deg)
1 deg 0.017453 rad 1 rad 57.29578 deg
2 deg 0.034907 rad 2 rad 114.591559 deg
3 deg 0.05236 rad 3 rad 171.887339 deg
5 deg 0.087266 rad 5 rad 286.478898 deg
10 deg 0.174533 rad 10 rad 572.957795 deg
15 deg 0.261799 rad 15 rad 859.436693 deg
20 deg 0.349066 rad 20 rad 1145.91559 deg
25 deg 0.436332 rad 25 rad 1432.394488 deg
50 deg 0.872665 rad 50 rad 2864.788976 deg
75 deg 1.308997 rad 75 rad 4297.183463 deg
100 deg 1.745329 rad 100 rad 5729.577951 deg
250 deg 4.363323 rad 250 rad 14323.944878 deg
500 deg 8.726646 rad 500 rad 28647.889757 deg
1000 deg 17.453293 rad 1000 rad 57295.779513 deg
Radians → DegreesDegrees → GradiansArcminutes → DegreesRadians → mrad

More converters: Length · Torque · Astronomy

Frequently Asked Questions

How many Radian in 1 Degree?

1 Degree (deg) equals approximately 0.017453 Radian (rad). 1 Radian (rad) equals approximately 57.29578 Degree (deg). Formula: deg ≈ rad × 57.29577951.

How to convert Degree to Radian?

To convert from Degree to Radian, multiply the quantity by approximately 0.017453 (or divide by approximately 57.29578). Mathematical formula: rad ≈ deg × 0.01745329.

What is an example calculation converting Degree to Radian?

To convert 10 Degree to Radian: multiply 10 by the conversion factor 0.017453 to get approximately 0.1745 Radian (rad).

How to convert back from Radian to Degree?

To convert from Radian to Degree, multiply by the inverse factor 57.29578 (or divide by 0.017453). Formula: deg = rad × 57.29577951.