
Free
About
Flange Calculator: The Essential Tool for Piping and Fabrication Professionals
Simplify your flange layout and bolt circle calculations with Flange Calculator. Designed for engineers, fabricators, and pipefitters, this app provides instant and accurate results for any circular pattern layout.
Whether you are working on a flange design, drilling bolt holes, or marking out a circular workpiece, Flange Calculator eliminates complex manual trigonometry and potential errors.
Key Features:
Bolt Circle Diameter (D): Calculate the pitch circle diameter or find the diameter based on other known dimensions.
Number of Holes (No): Determine the spacing and count for bolt patterns.
Chord Length (C): Quickly find the straight-line distance between hole centers for easy marking.
Pitch Angle (\beta): Get the exact angular spacing between holes in degrees.
Versatile Inputs: Calculate missing variables by entering the values you have (D, C, No, or \beta).
Simple Interface: Clean, intuitive layout designed for fast use on-site or in the workshop.
Stop wasting time with manual charts and formulas. Download Flange Calculator today and ensure every bolt pattern is perfect.
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What's New in Flange Calculator Easy
1.0
April 30, 2026




