Mil to Gradian Converter
Convert mils to gradians with our free online angle converter.
Quick Answer
1 Mil = 0.0625 gradians
Formula: Mil × conversion factor = Gradian
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.
Mil to Gradian Calculator
How to Use the Mil to Gradian Calculator:
- Enter the value you want to convert in the 'From' field (Mil).
- The converted value in Gradian 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 Mil to Gradian: Step-by-Step Guide
Converting Mil to Gradian involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
grad = mil × 0.0625Example Calculation:
1 mil = 0.0625 grad
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 Mil and a Gradian?
NATO mil: 1 mil = 1/6400 of a circle ≈ 0.05625 degrees ≈ 0.000982 radians
Alternative definitions:
- NATO/US military: 6400 mils = 360° (standard)
- Soviet/Russian: 6000 mils = 360°
- Swedish: 6300 mils = 360°
- True milliradian: 1000 milliradians = 1 radian (6283.2 mils = 360°)
Key conversions (NATO mil):
- 1 mil ≈ 0.05625 degrees
- 1600 mils = 90 degrees (right angle)
- 3200 mils = 180 degrees
- 6400 mils = 360 degrees (full circle)
1 gradian = 1/400 of a full circle = 0.9 degrees = 0.01571 radians
Key conversions:
- 100 gradians = 90 degrees (right angle)
- 200 gradians = 180 degrees (straight angle)
- 400 gradians = 360 degrees (full circle)
- 1 gradian = 0.9° = π/200 radians
Symbols: grad, gon, or superscript "g" (e.g., 100ᵍ)
Note: The Mil is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Gradian belongs to the imperial/US customary system.
Common Uses and Applications: mils vs gradians
Explore the typical applications for both Mil (imperial/US) and Gradian (imperial/US) to understand their common contexts.
Common Uses for mils
Military Artillery: Gun laying, indirect fire calculations, ballistic corrections. Sniper Operations: Scope adjustments, windage, elevation corrections for long-range shooting. Rangefinding: Estimating target distance using known target size and angular measurements. Fire Control Systems: Tank gunnery, naval artillery, anti-aircraft targeting.
When to Use gradians
Surveying: Primary angle unit in France, Germany, Switzerland, and Scandinavia for land surveys. Civil Engineering: Building construction, road design, slope measurements in Europe. Military: Artillery calculations and targeting in European armed forces. Geodesy: Precise Earth measurements and coordinate systems in metric countries.
Additional Unit Information
About Mil (mil)
How do I convert mils to degrees?
Formula (NATO mil): Degrees = Mils × (360/6400) = Mils × 0.05625
Examples:
- 100 mils = 5.625°
- 1600 mils = 90°
- 3200 mils = 180°
- 6400 mils = 360°
- 1 mil ≈ 0.05625°
How do mils work for range estimation?
Fundamental principle: At 1000 meters, 1 mil subtends approximately 1 meter.
Range formula: Range (m) = (Object size in meters × 1000) ÷ Object size in mils
Common target sizes:
- Adult human: ~1.7m tall
- Doorway: ~2m tall
- Car: ~4m long, ~1.5m tall
- Tank: ~3m wide, ~2.5m tall
- Shipping container: ~12m long, ~2.5m tall
Example: If a 2-meter tall object appears to be 4 mils in your scope, it's 500 meters away: (2 × 1000) ÷ 4 = 500m
What's the difference between NATO mils and Russian mils?
NATO/US Military: 6400 mils = 360° (1 mil = 0.05625°)
- Used by NATO countries, US military, most Western forces
- Divides circle into 6400 parts (approximation of 2000π)
Soviet/Russian: 6000 mils = 360° (1 mil = 0.06°)
- Used by Russian and former Soviet militaries
- Divides circle into 6000 parts (decimal convenience)
Practical impact: Russian mil is slightly larger. Always verify which system your equipment uses. Most modern Western civilian and military equipment uses NATO mils.
How do mil-dot scopes work?
Mil-dot reticle: Crosshairs marked with dots spaced 1 mil apart (center-to-center).
Applications:
- Range estimation: Measure target size in mils, calculate distance
- Holdover: Use lower dots for bullet drop compensation
- Windage: Use horizontal dots for wind drift correction
- Moving targets: Lead calculation using mil spacing
Example: Target (1.7m tall person) covers 2 mil-dots → Range = (1.7 × 1000) ÷ 2 = 850 meters
Modern variations: Mil-dot, mil-hash, Christmas tree reticles all use milliradian spacing for calculations.
About Gradian (grad)
How do I convert gradians to degrees?
Formula: Degrees = Gradians × 0.9 (or Gradians × 9/10)
Examples:
- 100 gradians = 90°
- 200 gradians = 180°
- 400 gradians = 360°
- 50 gradians = 45°
- 25 gradians = 22.5°
Gradians to Degrees converter →
How do I convert gradians to radians?
Formula: Radians = Gradians × (π/200) ≈ Gradians × 0.01571
Examples:
- 100 gradians = π/2 ≈ 1.571 radians
- 200 gradians = π ≈ 3.142 radians
- 400 gradians = 2π ≈ 6.283 radians
- 50 gradians = π/4 ≈ 0.785 radians
Gradians to Radians converter →
What's the difference between gradians and gons?
No difference - they're the same unit:
- Gradian: Traditional name, widely recognized
- Gon: Modern ISO standard term (ISO 31-1)
- Grad: Common abbreviation used on calculators
- Grade: French name (le grade)
All represent 1/400 of a circle. "Gon" is preferred in modern technical standards to avoid confusion with other meanings of "grade" (road grade, academic grade, etc.).
Why were gradians created?
Decimal system alignment: Part of French Revolution's metrication effort to create base-10 measurements.
Historical context:
- Created in 1795 alongside metric system
- Right angle = 100 (easier than 90 degrees)
- Full circle = 400 (divisible by 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200)
- Percentage calculations simpler: 25 gradians = 25% of right angle
Advantages over degrees:
- Pure decimal arithmetic (no sexagesimal base-60 calculations)
- Easier mental math: 50 gradians = half right angle
- Better integration with metric measurements
- Simpler for computing and digital systems
Modern usage: While degrees dominate globally, gradians remain standard in European surveying, civil engineering, and cadastral work. France, Switzerland, and Germany extensively use gradians in official surveying.
Conversion Table: Mil to Gradian
| Mil (mil) | Gradian (grad) |
|---|---|
| 0.5 | 0.031 |
| 1 | 0.063 |
| 1.5 | 0.094 |
| 2 | 0.125 |
| 5 | 0.313 |
| 10 | 0.625 |
| 25 | 1.563 |
| 50 | 3.125 |
| 100 | 6.25 |
| 250 | 15.625 |
| 500 | 31.25 |
| 1,000 | 62.5 |
People Also Ask
How do I convert Mil to Gradian?
To convert Mil to Gradian, enter the value in Mil 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 Mil to Gradian?
The conversion factor depends on the specific relationship between Mil and Gradian. 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 Gradian back to Mil?
Yes! You can easily convert Gradian back to Mil by using the swap button (⇌) in the calculator above, or by visiting our Gradian to Mil converter page. You can also explore other angle conversions on our category page.
Learn more →What are common uses for Mil and Gradian?
Mil and Gradian 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.
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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