About Grams to Cups
A free baking conversion site built on one idea: a cup of flour and a cup of honey are not the same weight, so every ingredient deserves its own number.
What we stand for
One ingredient, one number
Flour, sugar, butter and cocoa each get their own grams-per-cup value. We never run every ingredient through a single water-based ratio.
Sources you can check
For every ingredient we list its references, the measuring method behind the number, a confidence rating and the date we last checked it.
Free, no account
Every calculator, chart and article is free to use. There is nothing to sign up for and nothing to install.
Answers that load first
Results and tables arrive as plain HTML, so the answer is on screen before any script runs — even on a slow kitchen Wi-Fi connection.
Why we built this
A cup measures volume, so what it weighs depends on the ingredient. A cup of flour and a cup of honey are far apart on a scale, and a converter that runs every ingredient through one ratio gets most of them wrong. Every ingredient on this site has its own grams-per-cup value, and each value records how the cup was filled, such as spooned and leveled or firmly packed.
Same cup, different weight
1 cup all-purpose flour
= 120g
1 cup granulated sugar
= 198g
1 cup butter
= 227g
How our data is made
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We start from published baking references and standard kitchen measuring conventions, and record which method each number assumes: spooned, scooped or packed.
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An automated check makes sure every value is in a plausible range, still matches the source it was adopted from, and gives a valid weight for every cup type.
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Every value is published with its source, a confidence rating and a last-checked date. When we correct a number, it changes everywhere on the site at once.
Each value comes from a published reference and is listed with that source and the date it was checked, so you can check it yourself. The full dataset is open to read on our ingredient weight data page.
Read our methodology →Who uses Grams to Cups
Home bakers
Following an American recipe written in cups, or a European one written in grams, with whatever tools are in the drawer.
Recipe converters
Turning a family recipe into weights for the first time, or scaling a recipe without a scale.
Food writers and bloggers
Checking that the cup and gram amounts in a recipe card actually match before it goes out to readers.
Culinary students
Learning why professionals weigh ingredients, and how much volume measurements can drift from one ingredient to the next.
How the site is funded
Grams to Cups is free because it shows ads. Advertisers have no say in our data: no ingredient value, ranking or recommendation on this site is paid for. We also use analytics to see which pages are useful and where they're confusing. Our Privacy Policy has the details.
Frequently asked questions
Is Grams to Cups really free?
Yes. There are no paid tiers, no paywall and no account. The site is paid for by the ads shown on its pages.
Why doesn't my result match the number in my recipe?
Recipe writers measure differently. A cup of flour that is scooped straight from the bag can weigh noticeably more than one spooned in and leveled. Each ingredient page tells you which method our number assumes, and a kitchen scale is always the most reliable answer.
Which cup do you use?
By default, a 240 ml US cup. The calculator can also switch to the 236.6 ml US customary cup or the 250 ml metric cup, and our cup sizes guide explains when each one matters.
Can I print or share your charts?
Yes, for your own kitchen. The printable charts are free to download and print for personal use. If you'd like to publish them on your own site, please ask us first.
What do I do if a number looks wrong?
Email us with the ingredient, the number you expected and, if you can, a published source. A value changes only when a cited source supports the change.
More on cups: cup sizes guide.
Get in touch
Questions, corrections or ideas are welcome. Write to support@grams-to-cups.org or visit our Contact page.