Angle Converter
Convert between different units of angle Convert between 16 different units instantly with our free online tool.
Formula: 1 rad × 57.29578 = 57.29578 °
Available Angle Units
16 units supported for instant conversion
About Angle Conversion
Our free online angle converter helps you quickly and accurately convert between 16 different units of angle. Whether you're a student, professional, or simply need everyday conversions, you get instant, precise results with the formula displayed.
Convert between different units of angle This converter supports both metric and imperial units, making it ideal for international use. All conversions use internationally recognized standards and formulas.
Did You Know?
A full circle = 360°. This number was chosen by ancient Babylonians because 360 is divisible by 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180 — making fractions easy.
The small-angle approximation (sin θ ≈ θ in radians) is accurate to within 1% for angles up to about 14°. Engineers and physicists use it constantly to simplify calculations.
One arcminute of latitude on Earth's surface equals exactly 1 nautical mile (1,852 m). This is why nautical miles exist — it made navigation by sextant beautifully simple.
The angle subtended by your little fingernail at arm's length is about 1° — a useful rough ruler for estimating angles in the sky.
Why Use Our Angle Converter?
Instant Results
Conversions update as you type — no button clicks needed.
High Precision
Uses internationally standardized conversion factors (SI & NIST).
16+ Units
Convert between 16 angle units used around the world.
API & AI Ready
REST API and MCP server let apps and AI assistants convert programmatically.
Common Angle Conversion Table
Quick reference: Radian (rad) to other common units.
| Radian (rad) | Degree (°) | Gradian (Gon) (grad) | Arcminute (′) | Arcsecond (″) |
|---|---|---|---|---|
| 1 | 57.29578 | 63.66198 | 3437.747 | 206264.8 |
| 2 | 114.5916 | 127.324 | 6875.494 | 412529.6 |
| 5 | 286.4789 | 318.3099 | 17188.73 | 1031324 |
| 10 | 572.9578 | 636.6198 | 34377.47 | 2062648 |
| 25 | 1432.394 | 1591.549 | 85943.67 | 5156620 |
| 50 | 2864.789 | 3183.099 | 171887.3 | 10313240 |
| 100 | 5729.578 | 6366.198 | 343774.7 | 20626481 |
How to Use This Angle Converter
Enter Value
Type the number you want to convert
Select From Unit
Choose your starting unit
Select To Unit
Pick your target unit
View Result
See instant conversion with formula
Copy Result
Click to copy to clipboard