Turn to Gon Converter
Convert turns to gons with our free online angle converter.
Quick Answer
1 Turn = 400 gons
Formula: Turn × conversion factor = Gon
Use the calculator below for instant, accurate conversions.
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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.
Turn to Gon Calculator
How to Use the Turn to Gon Calculator:
- Enter the value you want to convert in the 'From' field (Turn).
- The converted value in Gon will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Angle category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Turn to Gon: Step-by-Step Guide
Converting Turn to Gon involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
gon = turn × 400Example Calculation:
1 turn = 400 gon
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
Need to convert to other angle units?
View all Angle conversions →What is a Turn and a Gon?
1 turn = 1 complete circular rotation = 360 degrees = 2π radians ≈ 6.2832 radians
Key conversions:
- 1 turn = 360 degrees
- 1 turn = 2π ≈ 6.2832 radians
- 1 turn = 400 gradians (or gons)
- 1 turn = 4 quadrants
- 1 turn = 1 revolution
- 0.5 turn = 180 degrees (half turn)
- 0.25 turn = 90 degrees (quarter turn)
Symbol: turn (no standard abbreviation)
1 gon = 1/400 of a full circle = 0.9 degrees = 0.01571 radians
Key conversions:
- 100 gons = 90 degrees (right angle)
- 200 gons = 180 degrees (straight angle)
- 400 gons = 360 degrees (full circle)
- 1 gon = 0.9° = π/200 radians
Alternative names: Gradian, grad, grade (same unit, different names)
Note: The Turn is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Gon belongs to the imperial/US customary system.
Common Uses and Applications: turns vs gons
Explore the typical applications for both Turn (imperial/US) and Gon (imperial/US) to understand their common contexts.
Common Uses for turns
CSS/Web Design: CSS3 transform property uses "turn" unit for rotations (e.g., rotate(0.5turn)). Engineering: Describing screw threads, bolt rotations, valve operations ("turn clockwise 2 turns"). Dance and Sports: Figure skating jumps, gymnastics rotations, dance pirouettes. Everyday Language: "Turn the key 3 turns," "Turn the screw half a turn."
When to Use gons
Surveying: Land surveys and topographic mapping in Europe, especially France, Germany, Switzerland - THE standard in continental Europe. Civil Engineering: Construction projects, road gradients, slope calculations - preferred by engineers trained in metric system. Military: Artillery targeting and ballistics in some European armies - standardized for ballistics calculations. Cartography: Map making and coordinate systems in countries using metric system - seamless with metric philosophy.
Additional Unit Information
About Turn (turn)
How do I convert turns to degrees?
Formula: Degrees = Turns × 360
Examples:
- 1 turn = 360°
- 0.5 turns = 180° (half turn)
- 0.25 turns = 90° (quarter turn)
- 0.75 turns = 270° (three-quarter turn)
- 2 turns = 720°
- 3.5 turns = 1260°
How do I convert turns to radians?
Formula: Radians = Turns × 2π ≈ Turns × 6.2832
Examples:
- 1 turn = 2π ≈ 6.283 radians
- 0.5 turns = π ≈ 3.142 radians
- 0.25 turns = π/2 ≈ 1.571 radians
- 2 turns = 4π ≈ 12.566 radians
- 0.75 turns = 3π/2 ≈ 4.712 radians
What's the difference between turns and revolutions?
No practical difference - they're the same measurement:
Turn:
- Emphasizes single rotational action
- Common in everyday language ("turn the knob")
- Used in CSS and web design
- More intuitive for describing motion
Revolution:
- Often used for continuous rotation (RPM = revolutions per minute)
- Common in engineering and physics
- Traditional term in astronomy (planetary revolutions)
- Emphasizes cyclical motion
Both equal: 360 degrees = 2π radians = 1 complete rotation
Choose based on context: "turns" for discrete rotations, "revolutions" for speed and continuous motion.
How do I use turns in CSS?
CSS turn unit makes rotations more readable:
Syntax: transform: rotate(Nturn);
Common patterns:
/* Flip element upside down */
.flip { transform: rotate(0.5turn); }
/* Rotate right 90° */
.rotate-right { transform: rotate(0.25turn); }
/* Full rotation animation */
@keyframes spin {
from { transform: rotate(0turn); }
to { transform: rotate(1turn); }
}
/* Multiple rotations */
.spin-twice { transform: rotate(2turn); }
Benefits:
- More intuitive than degrees (1turn vs 360deg)
- Easier to specify fractions (0.5turn vs 180deg)
- Clearer intent in code
- No need to calculate degree values
Browser support: All modern browsers (Chrome, Firefox, Safari, Edge) support turn unit in CSS3.
About Gon (gon)
How do I convert gons to degrees?
Formula: Degrees = Gons × 0.9 (or Gons × 9/10)
Examples:
- 100 gons = 90°
- 200 gons = 180°
- 400 gons = 360°
- 50 gons = 45°
- 1 gon = 0.9°
How do I convert degrees to gons?
Formula: Gons = Degrees ÷ 0.9 (or Degrees × 10/9)
Examples:
- 90° = 100 gons
- 45° = 50 gons
- 180° = 200 gons
- 360° = 400 gons
- 1° = 1.111 gons
Why use gons instead of degrees?
Decimal convenience: Base-10 system makes calculations easier without fractions.
Advantages:
- Right angle = 100 (clean decimal)
- Easier to divide: 400 ÷ 4 = 100, 400 ÷ 8 = 50
- Better for percentage calculations
- Aligns with metric system philosophy
- Simpler mental arithmetic
Metric integration: Designed to work with decimal measurement system used in surveying.
Are gons and gradians the same?
Yes, identical units with different names:
- Gon: Modern term, ISO standard (ISO 31-1)
- Gradian: Traditional term, still widely used
- Grad: Abbreviated form, common in calculators
- Grade: French term (same unit)
All refer to 1/400 of a circle. The term "gon" is preferred in modern standards to avoid confusion with other uses of "grade" (like road gradients or academic grades).
Symbol variations: gon, grad, or superscript "g" (e.g., 50ᵍ)
Conversion Table: Turn to Gon
| Turn (turn) | Gon (gon) |
|---|---|
| 0.5 | 200 |
| 1 | 400 |
| 1.5 | 600 |
| 2 | 800 |
| 5 | 2,000 |
| 10 | 4,000 |
| 25 | 10,000 |
| 50 | 20,000 |
| 100 | 40,000 |
| 250 | 100,000 |
| 500 | 200,000 |
| 1,000 | 400,000 |
People Also Ask
How do I convert Turn to Gon?
To convert Turn to Gon, enter the value in Turn in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our angle converter page to convert between other units in this category.
Learn more →What is the conversion factor from Turn to Gon?
The conversion factor depends on the specific relationship between Turn and Gon. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.
Can I convert Gon back to Turn?
Yes! You can easily convert Gon back to Turn by using the swap button (⇌) in the calculator above, or by visiting our Gon to Turn converter page. You can also explore other angle conversions on our category page.
Learn more →What are common uses for Turn and Gon?
Turn and Gon are both standard units used in angle measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our angle converter for more conversion options.
For more angle conversion questions, visit our FAQ page or explore our conversion guides.
Helpful Conversion Guides
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📚 How to Convert Units
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⚖️ Metric vs Imperial
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⚠️ Common Mistakes
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Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
National Institute of Standards and Technology — Fundamental physical constants and unit conversions
Bureau International des Poids et Mesures — International System of Units (SI) definitions and standards
International Organization for Standardization — Quantities and units international standards series
Last verified: February 19, 2026