Port Length Calculator

Calculate the optimal port length for a speaker system based on port diameter and desired air velocity.

Input Parameters

Calculation Results

Calculation Formula

Port Length (inches) = (π * D² * V) / 1342

Where:
π = Pi (approximately 3.14159)
D = Port Diameter (inches)
V = Desired Air Velocity (feet per second)

Result

Optimal Port Length: -- inches

Port Length Calculator Calculator Usage Guide

Learn how to use the Port Length Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the diameter of your port in inches.
  2. Enter the desired air velocity in feet per second. This is the speed at which you want the air to travel through the port.
  3. Click the "Calculate" button to compute the optimal port length.
  4. The result will be displayed in inches.

Understanding the Formula

The formula used for this calculator is based on the principle that the length of the port affects the sound output and response of a speaker system. The formula is:

Port Length (inches) = (π * D² * V) / 1342

Where:

  • π (pi) is a mathematical constant approximately equal to 3.14159.
  • D is the diameter of the port in inches.
  • V is the desired air velocity in feet per second.

This formula helps in designing a speaker system that produces sound at the desired frequency and quality.