About CupsToGrams

What this site does

CupsToGrams converts between cups, tablespoons, teaspoons, millilitres, grams, ounces and pounds for 45 common baking and cooking ingredients. Because a cup measures volume and a gram measures weight, every conversion goes through the density of the specific ingredient you pick. That is the whole idea of the site: no single magic number, but the right number for what is actually in your measuring cup.

Where the numbers come from

Each ingredient stores a density expressed as grams per US cup. The values are the widely used kitchen anchors that appear across reputable baking references and ingredient packaging: butter at 227 grams per cup, water at about 240 grams, all-purpose flour near 125 grams, granulated sugar near 200 grams, and so on. They are careful kitchen approximations, not laboratory measurements. Real-world weights vary with how an ingredient is scooped, packed, sifted or humidified, which is also why every ingredient page includes a short measuring tip.

How it runs

The converter is a static site. All conversions happen in your browser with plain arithmetic; nothing you type is sent to a server. There are no accounts required to use it. If you want the details on cookies, ads and analytics, the privacy page spells them out.

A note on accuracy

For everyday cooking, cup measures and these conversions are more than accurate enough. For precision baking, the best practice remains a digital kitchen scale: weigh your ingredients in grams and use this site to translate recipes that were written in cups. If you spot a density that looks off, compare it with the packaging of the product you actually use, since brands and grinds differ.