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Convert Gradians to Radians

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Science

Angle Converter
10 sig. figures
Formula1 gon ร— 0.01570796327 = 0.01570796327 rad
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About Angle Conversions

Angles run through math, engineering, navigation, and astronomy. The degree, split into 60 arcminutes and 3,600 arcseconds, has been the standard since Babylonian mathematics. The radian, the SI unit, ties arc length straight to radius and is what makes calculus on circles clean: a full turn is exactly 2ฯ€ radians. Gradians, or gons, cut a right angle into exactly 100 parts, which is why surveyors and civil engineers across continental Europe favor them. Revolutions, full turns, show up in mechanical work for rotation speed. The identities below are exact: 1 revolution = 360ยฐ = 2ฯ€ rad = 400 gon.

Quick Conversions

GradiansRadians
1 gon0.015708 rad
2 gon0.0314159 rad
5 gon0.0785398 rad
10 gon0.15708 rad
25 gon0.392699 rad
50 gon0.785398 rad
100 gon1.5708 rad
250 gon3.92699 rad
500 gon7.85398 rad
1000 gon15.708 rad
Unit NameSymbolPer 1 Gradian
Arcminuteโ€ฒ54
Arcsecondโ€ณ3240
Degreeยฐ0.9
Gradiangon1
Radianrad0.015708
Revolutionrev0.0025

Frequently Asked Questions

How do I convert Gradians to Radians?

To convert Gradians to Radians, use the conversion where 1 Gradian (gon) = 0.015708 Radians (rad). For example, 1 Gradian = 0.015708 Radians.

What are common Gradian to Radian conversions?

Here are common conversions: 1 Gradians = 0.015708 Radians, 5 Gradians = 0.0785398 Radians, 10 Gradians = 0.15708 Radians, 25 Gradians = 0.392699 Radians, 50 Gradians = 0.785398 Radians, 100 Gradians = 1.5708 Radians.

When would I need to convert Gradians to Radians?

Converting between these units is common in international trade, scientific research, and everyday situations where different measurement systems are used.

How precise are the conversions?

All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.

Sources

Read our full methodology โ†’