Circle Area Calculator – Compare 2 Pipe Diameters
The cross sectional area of pipe calculator below lets you find the cross sectional area of a circle, pipe or hose and compare the area to a different diameter circle. Enter the diameter of two pipes and compare the size difference. An essential tool when you need to know what improvement you’ll get by changing the diameter of exhaust, downpipe, intercooler piping as so on. Enter the diameter of the pipes, the calculator how much bigger the pipes are in area and in percentage.
Cross Sectional Pipe/Circle Area Calculator
Enter the diameter of your circle below. If you are comparing two circles, enter the smaller circle diameter first.
Why Did I Make This Tool?
I wanted to know what difference in area I would get by increasing the exhaust diameter and intercooler piping diameter. This pipe area calculator is primarily for people looking to change their exhaust or intercooler pipe size and need to know what flow area increase they will get for a bigger size. If there are any features you’d like to see added, let me know in the comments below.
Pipe/Circle Area Difference – Examples
70mm to 76mm
18% larger flow area
50mm to 60mm
44% larger flow area
60mm to 70mm
36% larger flow area
63mm to 76mm
45% more flow area
It can be surprising how different the area can be with a small difference in diameter. Especially when the diameters get larger. Changing intercooler piping from 51mm to 61mm gives an also 50% increase in cross sectional area/flow.
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