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Calcimator

Chemical Service Timing Calculator

Calculate processing time for chemical hair services based on product type, hair condition, and lift target.

Inputs

Results

Recommended Processing Time

35 min

Check Every10 min
Number of Checks3
Maximum Safe Time45 min
First Check At10 min
How to Use This Calculator
  1. Enter the chemical service type: relaxer, perm, color, or bleach.
  2. Set the hair porosity and health condition.
  3. Input the product processing temperature.
  4. Review the recommended processing time range.
  5. Set a timer and perform strand tests at the minimum time before proceeding.

How the result changes with Levels of Lift

Levels of LiftRecommended Processing Time
0.628 min
2.135 min
3.943 min
5.445 min

What each input means

Service Type
Type of chemical service being performed
Hair Type
Strand diameter and texture
Levels of Lift
Number of levels of lift desired (color/lightener only)
Product Strength
Strength level of the chemical product
Hair Condition
Current condition of the hair

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Service Type = 1, Hair Type = 2, Levels of Lift = 2, Product Strength = 2 = 5 input(s) provided
  2. Calculate Recommended Processing Time
    Recommended Processing Time = min(processingTime
    35 = 35
  3. Calculate Check Every
    Check Every
    10 = 10
  4. Calculate Number of Checks
    Number of Checks
    3 = 3

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