Gradian to Degree Converter

Angle Converter

14 units available

Decimals:

From

To

0.9

1 gon = 0.9 °

Formula:

° = gon × 0.9

With your value: 1 gon = 0.9 °

Other Gradian to Degree conversions

2 gon to °3 gon to °4 gon to °5 gon to °6 gon to °7 gon to °8 gon to °

Gradian to Degree Conversion Table

Gradian (gon)	Degree (°)
0.5	0.45
1	0.9
2	1.8
5	4.5
10	9
15	13.5
20	18
25	22.5
50	45
100	90
250	225
500	450
1000	900

Degree to Gradian Conversion Table

Degree (°)	Gradian (gon)
0.5	0.555556
1	1.111111
2	2.222222
5	5.555556
10	11.111111
15	16.666667
20	22.222222
25	27.777778
50	55.555556
100	111.111111
250	277.777778
500	555.555556
1000	1,111.111111

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Gradian (gon)

Angle

Exact conversion

The radian is the coherent SI unit of plane angle; the degree is exactly π/180 rad and is accepted for use with the SI.

Source: Units accepted for use with the SI, SI Brochure Table 8

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Degree (°)

Angle

Exact conversion

1° = π/180 rad exactly; accepted for use with the SI.

Source: Units accepted for use with the SI, SI Brochure Table 8

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Gradian to Degree

To convert from Gradian (gon) to Degree (°), multiply the value by 0.9.

Formula: ° = gon × 0.9

Reverse: gon = ° × 1.1111111111

Step-by-Step Example

Start with your value in Gradian. For example: 5 gon
Multiply by the conversion factor: 5 x 0.9
The result is: 4.5 °

About Gradian

The gradian (gon) is a unit of plane angle. One gradian equals 0.9 radians. UnitConvertLab converts it against every other angle unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: angle calculations, engineering and science, education.

About Degree

The degree is a measurement of angle equal to 1/360 of a full rotation. It is the most commonly used unit of angular measurement.

Common uses: navigation, geometry, construction.

Frequently Asked Questions

How many Degree are in 1 Gradian?

There are exactly 0.9 Degree in 1 Gradian. This means the conversion factor from Gradian to Degree is 0.9.

What is the formula to convert Gradian to Degree?

The formula to convert Gradian to Degree is: ° = gon × 0.9. For example, to convert 10 Gradian to Degree, you would multiply 10 by 0.9.

What is a Gradian?