Radian to Sign Conversion

Convert between Radian and Sign quickly and accurately.

From Radian

rad

To Sign

sign

How to Convert Radian to Sign

Conversion Formula

1 rad = 1.91 sign

1 sign = 0.524 rad

Example

Convert 15 rad to sign:

15 rad = 15 × 1.91 sign = 28.648 sign

Unit Information

Learn about the angle units you're converting between

Radian

rad

Definition

Radian is the SI unit for measuring angles, defined as the angle subtended by an arc equal in length to the radius of the circle. One radian equals approximately 57.2958 degrees.

History/Origin

The radian was introduced by James Thomson in 1873. It became the standard unit for angular measurement in the International System of Units (SI) due to its mathematical elegance.

Current Use

Radians are used in mathematics, physics, engineering, computer graphics, and scientific calculations where precise angular measurements are required.

Multiplier

57.296

Offset

Sign

sign

Definition

Sign is a unit of angle measurement equal to 30 degrees. It is used in astrology and astronomy to divide the zodiac into 12 equal parts.

History/Origin

The sign was developed in ancient astrology to divide the zodiac into 12 equal parts, each representing one astrological sign.

Current Use

Signs are used in astrology, astronomy, and some historical astronomical calculations.

Multiplier

Offset