Batch Calculator

If your formula is written in percentages, you can easily determine the weight of each ingredient using this method:

1. Enter your total batch weight.
   For example: 32 ounces.
2. Enter the percentage for each ingredient.
   Example: Water – 60%, Oil – 25%, Emulsifier – 10%, Fragrance – 5%.
3. Let the calculator do the work.
   It instantly converts those percentages into weights for your chosen measurement unit (ounces, pounds, or grams).

Tip: This is especially helpful when working with IFRA fragrance limits or preservative usage rates that are given in percentages.

You have a lotion recipe that’s 60% water, 25% oil blend, 10% emulsifier, and 5% fragrance. You want to make a 10 lb batch.

• Water: 10 lb × 0.60 = 6 lb
• Oil blend: 10 lb × 0.25 = 2.5 lb
• Emulsifier: 10 lb × 0.10 = 1 lb
• Fragrance: 10 lb × 0.05 = 0.5 lb

The Batch Size Calculator does all this instantly — no manual math required.

Whether you’re:

• Scaling up a test formula to fulfill a wholesale order.
• Scaling down a large batch for small custom runs.
• Converting recipes from hobby-scale to production-size.

…the batch converter ensures your ratios remain accurate, protecting your product’s performance and consistency.

Related Tool: Percentage Calculator →

How to calculate batch size?
Multiply your total batch weight by the percentage of each ingredient (as a decimal). For example, 20% of a 5 lb batch = 1 lb. The batch calculator does this automatically.

From small test batches to large production runs, our Batch Calculator takes the stress out of converting percentages into weights. Spend less time crunching numbers and more time creating products your customers will love.