Nutrition Facts Label Generator

Paste your recipe. Get an FDA-format Nutrition Facts panel with the legal rounding rules (21 CFR 101.9) and % Daily Values already applied. Free, no signup, no account.

Product name

Ingredients — one per line, with quantities

Servings per container

Serving size text (optional, e.g. "1 cookie (32g)")

What you get free

Correct FDA rounding: calories to the nearest 5/10, fat to 0.5 g under 5 g, sodium to 5/10 mg, “less than 1 g” where required — the part people get wrong by hand.
% Daily Values on the current 2016 reference values (Total Fat 78 g, Sodium 2,300 mg, Carbohydrate 275 g, Fiber 28 g).
Per-ingredient gram weights, so you can see exactly what was counted.
JSON API for every field — https://smeltworks.com/nutrition-label/api/label.
60 labels per day per IP, no key, no signup.

Label Pack — $19 once

$19 Print-ready SVG download of any label, no watermark, unlimited labels, commercial use. Vector, so it stays crisp on packaging at any size. Buy the Label Pack

After checkout your key is emailed within a few hours; use it as ?key= or the X-API-Key header on https://smeltworks.com/nutrition-label/api/label.svg, or paste it into this page.

API

Endpoint	What it does
`POST /api/label`	Body `{recipe, servings, serving_desc, title}` → full panel data + ready-to-embed HTML.
`GET /api/label?recipe=…&servings=…`	Same, in a URL.
`GET /api/label.svg`	Print-ready SVG file. Needs a Label Pack key.
`GET /api/ingredients`	The 57 recognised ingredients, their aliases and units.

curl -s https://smeltworks.com/nutrition-label/api/label \
  -H 'content-type: application/json' \
  -d '{"recipe":"2 cups all-purpose flour\n1 cup sugar\n3 eggs","servings":12}'

How the maths works

Each line is parsed into a quantity, a unit and an ingredient, then converted to grams using standard household-measure weights (1 cup all-purpose flour = 125 g, 1 tbsp butter = 14.2 g, 1 large egg = 50 g). Nutrients are summed across the recipe from USDA-derived per-100 g values, divided by servings, then rounded with the FDA declaration rules. Ingredients we do not recognise are listed back to you rather than silently dropped — add them by weight (e.g. 200g flour) or tell us and we will add them.

Estimate only. Values are computed from reference composition data, not from a lab analysis of your finished product, and cooking losses are not modelled. For FDA-regulated retail packaging, confirm with a lab or a qualified consultant before printing.