What the site offers
cookingconversion.co brings common recipe measurements into a calm, straightforward workspace. The converter changes cooking units and estimates weight-to-volume equivalents for 22 supported ingredients. The oven temperature tool converts Celsius and Fahrenheit. The recipe scaler multiplies ingredient quantities for a different number of servings. Short guides explain how to read a result and choose the right measuring system, and a printable chart keeps the common numbers on the fridge.
Everything is free, needs no account and runs in your browser. We do not show advertising or use affiliate links.
Who it is for
Home cooks following a recipe written in another country's units, bakers who want grams instead of cups, students learning why a cup of flour and a cup of sugar do not weigh the same, and anyone doubling a recipe for a bigger table. The tools assume no maths beyond reading a number, but they never hide the assumptions behind one.
Where the numbers come from
Unit factors come from published definitions: the US gallon of 231 cubic inches gives a US cup of exactly 236.5882365 ml, the avoirdupois pound is 453.59237 grams, and metric and Australian cups are 250 ml. Ingredient cup weights come mainly from the King Arthur Baking ingredient weight chart, with water taken from the US Geological Survey and butter from the US stick convention. Each ingredient page names its source, its preparation and the date we last checked it (September 25, 2026). The methodology page describes the model in full, including the one deliberate modelling choice: published cup weights are assigned to a 236.5882365 ml reference cup.
How content is produced and reviewed
The site is written and maintained by its operator. Guides are original text, drafted for this site and checked against the linked sources before publication. Calculators are covered by an automated test suite that checks known unit relationships, every ingredient round trip, fraction parsing, invalid input and the recipe scaler, and every page is rendered and inspected in a real browser at phone and desktop sizes before a release. When a source changes or a reader reports a problem, the affected page is corrected and its "last updated" date changes.
Five appliance guides (air fryer, convection oven, microwave, pressure cooker and slow cooker) are published as clearly marked editorial previews. They explain how to approach an adaptation but deliberately do not offer a cooking-time calculator, because no universal formula exists.
Editorial principles
- Exact where exact, approximate where approximate. Unit-to-unit conversions are exact for the selected definitions. Anything crossing weight and volume is labelled an estimate and shows its reference.
- The ingredient comes first. No result pretends that 50 grams is one universal number of cups. Unknown ingredients stay unsupported rather than borrowing another food's density.
- Sources beside the numbers. Every reference weight links to where it came from, with a check date, and a recipe author's own gram amount always takes priority over our chart.
- No invented authority. We do not publish testimonials, ratings, chef credentials or "tested in our kitchen" claims. The photograph on the site is decorative.
- Clear limits. A converter changes quantities. It does not decide substitutions, cooking times, appliance programmes or food safety.
Corrections and feedback
If a result looks wrong, an ingredient reference seems out of date, or a guide could be clearer, please contact us and include the amount, units and ingredient you used. We read every message. Corrections are made on the page itself; we do not maintain a separate errata list.
Who runs the site
cookingconversion.co is an independent website. Content is published under the site's name rather than an individual byline, and there are no sponsors or partners. You can reach the operator through the contact page. How we handle personal data is described in the privacy policy; the terms and conditions and disclaimer set out the conditions of use.