Spinning Ratio Calculator

The equation for calculating the spinning ratio is as follows:

Spinning Ratio = (π * Df) / (π * Di)


  • π represents the mathematical constant pi, approximately equal to 3.14159.
  • Df is the final diameter of the spun product.
  • Di is the initial diameter of the starting material.
Spinning Ratio Calculation

Spinning Ratio Calculation

To calculate the spinning ratio, divide the final diameter (Df) by the initial diameter (Di). Using π in both the numerator and denominator cancels out, leaving a simple ratio of the diameters.

Now Calculate by using Bobin, Flyer diameter, and Bobbin RPM.

Spinning Ratio Calculator

Spinning Ratio Calculator

Calculate the spinning ratio based on bobbin and flyer measurements:

Spinning Ratio:

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