Angle Converter

Convert between all common angle units instantly. Select your units from the dropdowns below and enter a value to see the conversion in real-time.

SI unit: radian (rad)

Conversion Formula

About Angle Units

Common Angle Conversions

• 1 turn = 360° = 2π rad ≈ 6.2832 rad = 400 grad = 6,400 mil (NATO)
• 1 rad ≈ 57.2958° ≈ 57° 17′ 44.8″ = 63.6620 grad ≈ 1,000 mrad
• 1° = 60′ = 3,600″ = π/180 rad ≈ 17.453 mrad
• 1′ (arcminute) = 60″ ≈ 0.29089 mrad ≈ 0.01667°
• 1″ (arcsecond) ≈ 4.848 µrad ≈ 0.000278°
• 1 grad = 0.9° = 54′ = 100 centesimal minutes (c′) = 10,000 centesimal seconds (c″)
• 1 mil (NATO) = 1/6,400 turn ≈ 0.05625° ≈ 0.9817 mrad
• 1 mil (Warsaw Pact) = 1/6,000 turn = 0.06° ≈ 1.0472 mrad
• 90° = π/2 rad = 1 quadrant = 100 grad = 1,600 mil (NATO)
• 1 nautical mile ≈ 1 arcminute of latitude along the Earth’s meridian

Direct Converters