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Net Weight & Yield Calculator

Reconcile batch yield, serving size, and servings per container. Any two fields calculate the third, instantly.

Enter any two; the third computes

Tip: edit any two fields and the third recalculates. Locked field = the one you didn't touch last.

Label statement

Suggested net weight declaration

Net Wt 600 g (21.2 oz)

Suggested servings statement

20 servings per container · Serving size 30.0 g

All-in-grams (round-trip)

Yield 600 g · Serving 30.0 g · 20 servings

Net weight declaration format per 21 CFR 101.7. Serving size must be based on RACC (21 CFR 101.12) for compliance.

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Check your own jurisdiction

This tool is not tied to one country's rules. What you declare on the label is, and the requirements differ.

Regulation libraryAll 152 label formats, each cited to the paragraph it follows.Coverage by countryFind the rules that apply where you sell.

Read more

Rules and Guidelines · 9 minFDA Reference Amount (RACC) and Serving SizeLearn how FDA reference amounts (RACCs) set Nutrition Facts serving sizes and determine dual-column labels and nutrient-claim thresholds.Rules and Guidelines · 10 minFDA Serving Size Requirements: Nutrition LabelsLearn how FDA serving sizes use RACC reference amounts, when dual-column Nutrition Facts panels are required, and how to calculate servings.Features · 4 minCost Per Serving: How Food Businesses CalculateCalculate cost per serving for a food business, including ingredients, packaging, labor, overhead, waste and yield; includes a worked example.Rules and Guidelines · 10 minConverting Serving Sizes to GramsConvert nutrition label serving sizes to grams using product-specific weights and FDA rounding rules; household measure charts are only a guide.