# How do you calculate circumference in AutoCAD?

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## How is circumference calculated?

To calculate the circumference, you need the radius of the circle: Multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation. That’s it; you found the circumference of the circle.

## How do you measure circumference in Inventor?

On the ribbon, click Tools tab Measure panel Measure . Or, click Measure on the marking menu. In Inventor assemblies only, if desired, select a selection priority: Component, Part, or Edges and Faces. Select the Advanced Settings drop-down arrow and set the dual units and precision values.

## How do you calculate circumference of a pipe?

How to Calculate the Circumference of a Pipe

1. Measure the diameter of the pipe. For example, assume the pipe has a diameter of four feet.
2. Determine how accurate your measurement needs to be. If you need a general estimate, you can use 3.14 as pi. …
3. Multiply the diameter by pi.

## How do you measure inches in a circle?

You can calculate the circle’s circumference in inches with pi in the equations circumference = 2 * radius * pi and circumference = diameter * pi. Locate the circle’s center, and measure the length from its center to a point on its edge to find the radius. For an example, suppose the measurement is 5 inches.

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