Enter the larger diameter, smaller diameter, and length of taper into the calculator. The calculator will evaluate and display the total taper and taper angle.

## Taper Angle Formula

The following equations are used to calculate the overall taper and taper angle.

T = (dl – ds) / L

TA = atan(0.5 x T)

- Where T is the taper
- dl is the larger diameter
- ds is the smaller diameter
- TA is the taper angle

## Taper Definition

A taper is typically referred to a section of a pipe that reduces in overall diameter over a certain length. That reduction in size is the taper, and the rate at which it reduces over the length is considered the taper angle.

## Taper Example

How to calculate a taper?

**First, determine the larger diameter.**Measure the larger diameter.

**Next, determine the smaller diameter.**Measure the smaller diameter.

**Finally, calculate the taper.**Calculate the taper and taper angle using the formulas above.

## FAQ

**What is a taper?**

A taper is a section of a pipe that reduces in diameter over it’s length.

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