The **Small Angle Formula** calculator has three forms of the Small Angle Equation.* Small Angle Equation*

where:

- (
**α**) is the angle - (
**s**) is the size - (
**d**) is the distance

Dr. Spicklemire has an instructional YouTube video on the using the Small Angle Equation (CLICK HERE).

Using the Small Angle Formula, you can: