Flange Calculator Easy

Quickly calculate flange bolt patterns, hole circles, chord lengths, and pitch angles with precision.

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.