Calculator Inputs
Example Data Table
| Recipe | Ratio | Target Servings | Portion Size | Waste % | Production Weight |
|---|---|---|---|---|---|
| Pizza Dough | 5 : 3.2 : 0.1 : 0.03 | 8 | 250 g | 3 | 2060 g |
| Pancake Mix | 4 : 3 : 1 : 0.5 : 0.08 | 6 | 180 g | 2 | 1101.6 g |
| Cookie Dough | 6 : 3 : 2 : 1 : 0.15 | 24 | 45 g | 5 | 1134 g |
Formula Used
1. Target edible weight
Target edible weight = Target servings × Portion size
2. Production weight
Production weight = Target edible weight × (1 + Waste % ÷ 100)
3. Ingredient amount
Ingredient amount = Production weight × Ingredient parts ÷ Total ratio parts
4. Share percentage
Share % = Ingredient parts ÷ Total ratio parts × 100
5. Baker percentage
Baker % = Ingredient parts ÷ First ingredient parts × 100
6. Cost estimate
Ingredient cost = Rounded ingredient amount × Unit cost
These formulas make ratio scaling consistent, transparent, and easy to audit across small tests and large production batches.
How to Use This Calculator
- Enter a recipe name and choose a calculation basis.
- Provide original servings for scale-factor comparison.
- Enter target servings and portion size, or set a batch weight.
- Add waste percentage to cover trimming, evaporation, or handling loss.
- Choose the working unit, rounding increment, and rounding rule.
- List each ingredient with its ratio part and optional unit cost.
- Submit the form to see batch totals, percentages, and per-ingredient amounts.
- Use the export buttons to save the result as CSV or PDF.
FAQs
1. What does a ratio part mean?
A ratio part is a proportional share, not a fixed weight. If flour is 5 parts and water is 3 parts, water stays at three-fifths of flour regardless of batch size.
2. Can I scale by servings instead of batch weight?
Yes. Choose the servings basis, enter target servings and portion size, and the calculator converts that goal into a total edible batch weight automatically.
3. Why is waste percentage useful?
Waste percentage adds extra production weight for spillage, trimming, evaporation, or sticking losses. It helps you prepare enough food without accidentally underproducing the batch.
4. Why do raw and rounded amounts differ?
Raw amounts come directly from the ratio formula. Rounded amounts apply your chosen increment and rounding rule, which is useful for practical weighing and purchasing.
5. What is baker percentage here?
Baker percentage compares each ingredient to the first active ingredient. It helps you review relative strength, hydration-like balance, and recipe structure quickly.
6. Can I include optional ingredients?
Yes. Add any ingredient with a positive ratio part. Leave unused rows blank or set their part to zero so they do not affect totals.
7. Does the calculator support any currency?
Yes. Enter your preferred currency symbol, such as $, €, £, or Rs. The calculator multiplies rounded quantity by unit cost and displays the totals.
8. Is this useful for commercial kitchens?
Yes. The waste control, cost input, serving-based scaling, and rounding options make it practical for testing recipes, production prep, and repeatable batch planning.