Turns to Radians

Convert turns to rad instantly — with a table, common angle values, and a live calculator.

1 turns equals 6.28 rad.

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Result (rad)6.28 rad

turns to rad table

turnsrad
1 turns6.28 rad
2 turns12.57 rad
3 turns18.85 rad
5 turns31.42 rad
10 turns62.83 rad
15 turns94.25 rad
20 turns125.66 rad
30 turns188.5 rad
45 turns282.74 rad
60 turns376.99 rad
90 turns565.49 rad
120 turns753.98 rad
135 turns848.23 rad
150 turns942.48 rad
180 turns1130.97 rad
270 turns1696.46 rad
360 turns2261.95 rad
400 turns2513.27 rad
500 turns3141.59 rad
720 turns4523.89 rad
1000 turns6283.19 rad
3600 turns22619.47 rad

rad to turns (reverse)

radturns
1 rad0.159 turns
2 rad0.318 turns
3 rad0.477 turns
5 rad0.796 turns
10 rad1.59 turns
15 rad2.39 turns
20 rad3.18 turns
30 rad4.77 turns
45 rad7.16 turns
60 rad9.55 turns
90 rad14.32 turns
120 rad19.1 turns
135 rad21.49 turns
150 rad23.87 turns
180 rad28.65 turns
270 rad42.97 turns
360 rad57.3 turns
400 rad63.66 turns
500 rad79.58 turns
720 rad114.59 turns
1000 rad159.15 turns
3600 rad572.96 turns

Common angle values

turnsrad
15 turns94.25 rad
30 turns188.5 rad
45 turns282.74 rad
60 turns376.99 rad
90 turns565.49 rad
120 turns753.98 rad
135 turns848.23 rad
180 turns1130.97 rad
270 turns1696.46 rad
360 turns2261.95 rad
720 turns4523.89 rad
1000 turns6283.19 rad

How it scales

1573144716280255075100turns

1 turn (360°) in other units

360deg6.28rad400grad

The ratio at a glance

1 turns6.28 rad

Degrees, radians, and gradians — the key angle units

The degree (°) divides the full circle into 360 parts and is the everyday unit in geometry and navigation. The radian (rad) is the standard mathematical unit: 180° = π rad, so 1 rad ≈ 57.2958°. The gradian (gon) divides the circle into 400 parts, so one full turn is 400 grad = 360° and 1 grad = 0.9° — common in surveying because a right angle is exactly 100 grad.

For very small angles the degree is subdivided further: 1° = 60 arcminutes (′) and 1 arcminute = 60 arcseconds (″), so 1° = 3,600 arcseconds — used in astronomy and navigation. A turn describes one full circle (360°). For more unit pairs, use our angle conversion hub.

Frequently asked questions

How many rad are in 1 turns?

1 turns equals 6.28 rad.

How many rad are in 2 turns?

2 turns equal 12.57 rad.

How do I convert turns to rad?

Multiply the angle in turns by 6.28 to get rad.

How are degrees and radians related?

A full circle spans 2π radians or 360°, so 180° = π rad. From this: 1 rad = 180/π ≈ 57.2958° and 1° = π/180 ≈ 0.0175 rad. The factor π appears because the radian is defined from the circle's arc length.

What are these angle units used for?

Degrees (°) are the everyday unit in geometry and navigation. Radians (rad) are the standard mathematical unit, especially in trigonometry and physics. Gradians (gon) are used in surveying, while arcminutes and arcseconds express very small angles in astronomy and navigation. A turn describes one full circle (360°).

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