Open data

Name: Unit conversion factors, with the standard each one comes from
Creator: EasyByte Hub S. Coop. Mad.
Published: 2026-09-27
License: https://creativecommons.org/licenses/by/4.0/

Every number on this site comes from a file, and the file is yours to use. Each conversion factor is linked to the standard it comes from, and the factors that are exact by definition — the inch is 25.4 mm since 1959 — are marked as exact. Ingredient weights per cup come from USDA FoodData Central, and each one carries the FDC ID of the food it was read from.

Files

conversion-factors.json — all 43 pairs: factor or formula, source, notes, and the shoe size tables.
conversion-factors.csv — the 40 pairs with a single factor or a linear formula, one row each.
ingredient-densities.csv — grams per US cup for 69 ingredients, each with its USDA FoodData Central FDC ID, food description and portion.

License

CC BY 4.0. Use it anywhere, commercially or not, as long as you credit ConvertBite.

How to cite

ConvertBite (EasyByte Hub S. Coop. Mad.). Unit conversion factors, with sources. https://convertbite.com/data/