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Tube & Pipe Calculator
Tube & Pipe Dimensional Calculator
Calculate any tube or pipe dimension in seconds. Enter any two of three measurements. Outside Diameter (OD), Inside Diameter (ID), or Wall Thickness — and the calculator instantly solves for the third. Toggle between inches and millimeters with one click.
Units
OD + Wall → ID
OD + ID → Wall
ID + Wall → OD
Tube & Pipe Dimension Formulas
These three formulas cover every tube and pipe sizing scenario. If you know any two dimensions, you can find the third, no tables, no charts needed.
OD + Wall → ID
ID = OD − (2 × Wall)
Know the OD and wall thickness — find the bore.
OD + ID → Wall
Wall = (OD − ID) ÷ 2
Know OD and ID — find how thick the wall is.
ID + Wall → OD
OD = ID + (2 × Wall)
Know the bore and wall — find the outer diameter.
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Turn These Dimensions Into a Quote
You’ve got the numbers; now get a price. We stock and supply tube and pipe in every major alloy, with custom shaping and tight-tolerance tubing available on request.