Enter Ingredient Data
Add ingredient mass, purity, density, and role. Large screens show three columns, medium screens show two, and mobile shows one.
Example Data Table
This example shows a 1000 g formulation with purity-adjusted active content.
| Ingredient | Mass (g) | Purity (%) | Weight % | Active Mass (g) |
|---|---|---|---|---|
| Water | 750 | 100 | 75.00 | 750.00 |
| Ethanol | 180 | 99.8 | 18.00 | 179.64 |
| Glycerin | 50 | 99.5 | 5.00 | 49.75 |
| Sodium Benzoate | 8 | 99 | 0.80 | 7.92 |
| Citric Acid | 7 | 100 | 0.70 | 7.00 |
| Fragrance | 5 | 100 | 0.50 | 5.00 |
| Total | 1000 | — | 100.00 | 999.31 |
Formula Used
Weight % = (Ingredient Mass ÷ Total Batch Mass) × 100
Active Mass = Ingredient Mass × (Purity % ÷ 100)
Inactive Mass = Ingredient Mass − Active Mass
Active % of Batch = (Active Mass ÷ Total Batch Mass) × 100
Active Share % = (Ingredient Active Mass ÷ Total Active Mass) × 100
Estimated Volume (mL) = Ingredient Mass ÷ Density
Scaled Mass = Ingredient Mass × (Target Batch Mass ÷ Current Total Batch Mass)
Scaled Mass + Loss = Scaled Mass × (1 + Loss Allowance % ÷ 100)
How to Use This Calculator
- Enter a batch label if you want a named report.
- Add each ingredient name, role, and mass in grams.
- Enter purity values to separate active and inactive content.
- Add density where available for approximate volume estimates.
- Optionally set a target batch mass to scale the formulation.
- Add a loss allowance when production needs overage.
- Choose decimal precision, then click Calculate Percentages.
- Review the summary cards, result table, plot, and downloads.
FAQs
1) What does this calculator measure?
It measures each ingredient’s mass percentage within a batch. It also estimates purity-adjusted active mass, inactive mass, active percentage of the full batch, scaling amounts, and optional volume from density.
2) Are the percentages based on mass or volume?
The main percentages are based on mass. Density is only used to estimate volume in milliliters when you supply it. That keeps composition and concentration calculations consistent for laboratory batching.
3) Why is purity important in formulation work?
Purity shows how much of a weighed ingredient is actually active material. A 95% pure reagent contributes less active substance than the same mass of a 100% pure reagent.
4) What does active percentage of batch mean?
It shows how much of the full mixture is active material from a specific ingredient. This is useful when impurities, carrier materials, or hydrates affect the real amount of functional substance.
5) Why might totals look slightly off?
Small differences usually come from rounding. The internal calculations use more precision than the displayed values, so visible totals may differ by a tiny amount when decimal places are limited.
6) Can I scale a lab batch to production size?
Yes. Enter a target batch mass and the calculator applies a scale factor to every ingredient. You can also add a loss allowance to plan extra material for handling or process losses.
7) When should I enter density?
Enter density when you want estimated volume or when a liquid ingredient is easier to compare volumetrically. Density is optional and does not change the main mass percentage results.
8) Is this suitable for quality control checks?
It is useful for formulation planning, recordkeeping, and quick composition checks. For regulated quality control, always compare against validated methods, approved specifications, and laboratory procedures.