/convert/gon-to-deg/ Convert gradians (gon) to degrees instantly with a reference conversion table. article gradians (gon) to degrees Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
📐 Angle

gradians (gon) to degrees Converter

Convert gradians (gon) to degrees instantly with a reference conversion table.

Quick answer: To convert gradians (gon) to degrees, multiply by 0.9. For example, 1 gradians (gon) = 0.9 degrees. Use the calculator below for any value.
gradians (gon) to degrees
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Common conversions
gradians (gon) degrees
Formula:

How to convert gradians (gon) to degrees

1

Enter your value

Type the number of gradians (gon) you want to convert into the left box. The result in degrees appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — degrees to gradians (gon). Your current value carries across so you don't have to re-enter anything.

3

About gradians (gon) and degrees

gradians (gon) and degrees are common angle measurements.

💡 Did you know?

1 gon = 0.9° (400 gon = 360°). The gradian/gon was designed so a right angle = 100 gon — cleaner than 90°. Surveyors in France, Germany and some other EU countries still use gons. Professional surveying theodolites often display in gons (also called 'grades' in French engineering).

📊 Common conversions at a glance
gradians (gon) degrees
1 0.9
50 45
100 90
200 180
300 270
400 360
Reviewed for 2026. gradians (gon) ↔ degrees conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.