FDA Serving Size Calculator (RACC)

Before you send a Nutrition Facts panel to print, check that the serving size is the one FDA actually expects. Not a guess, and not whatever a spreadsheet template happened to have. The FDA Serving Size Calculator (RACC) is live at /tools/racc. It’s free and covers all 148 FDA food categories.

Each category page shows its exact source: 21 CFR 101.12 for the reference amount, and 101.9(b) for how that amount becomes the serving size on your label. Nothing here is estimated.

Search or browse by category, then use the number directly. Before the print run, not after.