Flange Size
Result
Calculated result
51.8362787842
Based on the values entered.
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Flange Size — free online calculator.
Formula
BCD = OD + 2×Thickness; Spacing = BCD×π / Bolt Count
- Flange Size calculates its result from Pipe Outer Diameter (mm), Flange Thickness (mm), Number of Bolt Holes. It uses the formula BCD = OD + 2×Thickness; Spacing = BCD×π / Bolt Count. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Pipe Outer Diameter, Flange Thickness, Number of Bolt Holes. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Flange Size
Inputs
- Pipe Outer Diameter: 50 mm
- Flange Thickness: 8 mm
- Number of Bolt Holes: 4
Using Pipe Outer Diameter (mm) = 50, Flange Thickness (mm) = 8, Number of Bolt Holes = 4, the calculated result is 51.8362787842.
Sample result: Calculating…
Frequently asked questions
What does the Flange Size calculate?
Flange Size — free online calculator.
Which values should I enter?
Enter Pipe Outer Diameter, Flange Thickness, Number of Bolt Holes using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: BCD = OD + 2×Thickness; Spacing = BCD×π / Bolt Count.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.