Perm Rod Selection Calculator
Determine the right perm rod size, count, and wrapping technique for your target curl pattern.
Inputs
in
Results
Rod Diameter
0.5 in
Rod Size / ColorBlue (Medium)
Rods Needed50
Wrapping TechniqueCroquignole or spiral
Section Width0.5 in
Est. Processing Time18 min
Expected Curl Circumference2.36 in
How to Use This Calculator
- Enter the client hair length and desired curl size.
- Set the hair texture (fine, medium, coarse).
- Review the recommended rod diameter and wrapping pattern.
- Select rods based on recommendation and confirm with a test curl on a small section.
- Document rod choice and processing time in the client record.
What each input means
- Target Curl Size
- Desired curl pattern after perming
- Hair Length
- Length of hair to be permed
- Hair Texture
- Natural texture of the hair
- Override Rod Count
- Leave 0 for automatic recommendation
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersTarget Curl Size = 2, Hair Length = 8, Hair Texture = 2, Override Rod Count = 0 = 4 input(s) provided
- Calculate Rod DiameterRod Diameter0.5 = 0.5
- Calculate Rod Size / ColorRod Size / ColorBlue (Medium) = Blue (Medium)
- Calculate Rods Needed50 = 50
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