The **Angle Spread Calculator** is designed to compute the angle formed by an arc and its radius, known as the angle spread. This concept is commonly used in geometry, physics, and engineering to understand the curvature of a circle or arc. The angle spread, measured in degrees, can easily be found by knowing the arc length and radius.

### Formula

To calculate the angle spread, use the following formula:

- θ = (s / r) ∗ (180 / π)

Where:

- θ = Angle spread in degrees
- s = Arc length
- r = Radius of the circle

### How to Use

- Enter the arc length (s) in the provided input field.
- Enter the radius (r) of the circle.
- Click the “Calculate” button to find the angle spread (θ).
- The result will be displayed in degrees.

### Example

If the arc length (s) is 5 units and the radius (r) is 2 units, the angle spread can be calculated as:

- θ = (5 / 2) * (180 / π)
- θ ≈ 143.24 degrees

Thus, the angle spread is approximately 143.24 degrees.

### FAQs

**What is angle spread?**

Angle spread refers to the angle subtended by an arc at the center of a circle, measured in degrees.**How do I calculate the angle spread manually?**

Divide the arc length by the radius, then multiply the result by (180 / π) to convert it into degrees.**What units should I use for arc length and radius?**

Both arc length and radius should be in the same unit (e.g., meters, inches, etc.) for accurate results.**Can the radius be zero?**

No, the radius cannot be zero because division by zero is undefined.**Can the calculator handle negative values for arc length?**

No, arc length should always be a positive value as it represents a distance.**What is the relationship between arc length and angle spread?**

The angle spread increases as the arc length increases for a given radius, and vice versa.**What is the maximum angle spread possible?**

The maximum possible angle spread for a full circle is 360 degrees.**What if the arc length is greater than the circumference of the circle?**

In that case, the arc represents more than one full rotation, and the angle spread will exceed 360 degrees.**Can this calculator handle large values?**

Yes, it can handle large values for both arc length and radius as long as they are realistic.**How accurate is the result?**

The calculator rounds the result to two decimal places for precision.**What happens if I enter decimal values?**

The calculator will handle decimal values and provide an accurate result.**What does the formula (180 / π) represent?**

This factor is used to convert the result from radians to degrees.**Can I use this calculator for 3D angles?**

No, this calculator is designed for 2D angles on a circular arc.**Why is the radius important in calculating the angle spread?**

The radius is crucial because it determines the size of the circle and how much of the arc subtends a specific angle.**Can I use this calculator for sectors of a circle?**

Yes, the calculator can help determine the angle of a sector given the arc length and radius.**What if the arc length is the entire circumference?**

If the arc length equals the circumference, the angle spread will be 360 degrees.**Is the angle spread always positive?**

Yes, angle spread is a positive value because it represents the magnitude of the angle.**Can this calculator be used for ellipses?**

No, this calculator is specifically for circles, not ellipses.**How does this calculator handle very small arc lengths?**

The calculator works accurately with small arc lengths, producing a small angle spread.**Can I reset the calculator?**

Yes, simply clear the input fields or refresh the page to reset the calculator.

### Conclusion

The **Angle Spread Calculator** provides a simple yet effective way to calculate the angle formed by an arc and its radius. Whether you’re working on a geometric problem or a practical application in engineering, this calculator ensures accurate results. By entering the arc length and radius, the calculator quickly determines the angle spread in degrees, aiding in your calculations and projects.