O/W emulsion calculator
Free online tool for calculating formulas for creams, lotions, and “oil-in-water” (O/W) emulsions. Enter your ingredients — get proportions, weight, and cost.
Formula calculator
Enter ingredients — water will be calculated automatically
| Phase | Type | Name | % | ₽/g | Weight | Cost | |
|---|---|---|---|---|---|---|---|
| Oil phase (B) | |||||||
| 4 g | — | ||||||
| 8 g | — | ||||||
| Cool-down phase (C) | |||||||
| 1 g | — | ||||||
Instructions for use
Enter formula name
Enter the name of your cream or emulsion for convenience.
Set total weight
Specify the desired batch weight in grams. Default is 100 g.
Add ingredients
Click the button for the required phase (A, B, or C) to add a row.
Fill in the data
Select the ingredient type, enter the name, usage percentage, and cost per gram.
Check the calculations
Water is calculated automatically. Weight and cost update in real time.
Add a method
Describe the preparation sequence and add any extra notes.
Save the result
Download the image as a JPG or print the formula.
Three emulsion phases
Water phase (A)
- Distilled water
- Hydrolats
- Gelling agents (carbomer, xanthan)
- Water-soluble humectants
- Aqueous extracts
Heated to 70–75°C
Oil phase (B)
- Oils and butters
- Emulsifiers
- Co-emulsifiers
- Waxes
- Silicones
Heated to 70–75°C
Cool-down phase (C)
- Active ingredients
- Extracts
- Essential oils
- Preservatives
- Vitamins and antioxidants
Added at <40°C
What is an oil-in-water emulsion?
An oil-in-water (O/W) emulsion is a dispersed system in which oil droplets are distributed in a continuous aqueous phase. This is the most common type of emulsion in the cosmetic industry.
Most face and body creams, lotions, milks, and moisturizers are O/W emulsions. They are characterized by a light texture, absorb well, and do not leave a greasy film on the skin.
Benefits of O/W
- • Light texture
- • Fast absorption
- • Good hydration
- • Non-greasy finish
Applications
- • Face creams
- • Body creams
- • Lotions and milks
- • Moisturizing emulsions
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FAQ
Answers to popular questions about the calculator