Cups to Grams Converter

What this tool does

This converter turns recipe measurements between US cups and weight — grams or ounces — for a specific cooking ingredient. Because a cup measures volume, not weight, the result depends entirely on what you are measuring. A cup of cocoa powder and a cup of honey occupy the same space but weigh wildly different amounts, so the tool asks you to choose the ingredient first, then applies that ingredient’s published density.

It works both ways. Convert cups to grams when a recipe is written in cups but you would rather weigh on a scale, or convert grams to cups when a metric recipe needs to be made with cup measures. It loads ready to use with all-purpose flour selected, and you can pick fractional amounts — a quarter, a third, a half, three quarters — with one tap.

When you would use it

International recipes are the most common reason. American recipes lean on cup measures, while most of the rest of the world bakes by weight, so a beautiful cake recipe from a US blog can stall a cook in Europe at the very first line. This tool bridges that gap. It is also useful when you want to bake more accurately: serious bakers convert their favourite cup recipes to grams once and then weigh forever after, because weighing is far more consistent than scooping.

It helps in everyday situations too — halving a recipe and wanting clean gram figures, checking whether you have enough of an ingredient left in the bag, or following a recipe video that quotes grams when your measuring tools are cups.

How to use it

1. Choose a direction: Cups to weight or Weight to cups.
2. Pick your ingredient from the menu. The grams-per-cup density for that ingredient is shown so you can see what the calculation is based on.
3. Enter the amount. In cups mode you can type any number, including decimals like 0.75, or tap a fraction button such as 1/3 or 1 1/2.
4. Read the result. Cups-to-weight shows both grams and ounces; weight-to-cups shows a tidy cup figure plus the exact decimal.
5. Use Copy result to drop the conversion into your notes or shopping list.

Tips for accurate measuring

The single biggest source of error is scooping flour straight from the bag, which compacts it. The standard method is to fluff the flour, spoon it lightly into the cup, and level the top with a flat edge — never tap or pack it. Brown sugar is the opposite: it is conventionally measured firmly packed, which is why its density here is higher than white sugar. Sticky liquids like honey and syrup cling to the cup, so a lightly oiled cup pours out more cleanly and measures more truly.

For anything where precision matters — bread, pastry, macarons — a kitchen scale is worth far more than any conversion table. If you need to convert other quantities, the unit converter handles length, volume and weight in general, and the oven temperature converter sorts out Fahrenheit, Celsius and gas marks. While a dish bakes, the countdown timer keeps an eye on the clock, and the recipe scaler adjusts a whole ingredient list at once.

Privacy

Everything here happens on your device. The ingredient density table is bundled into the page, the maths runs in your browser, and nothing you select or type is uploaded, stored or tracked. Once the page has loaded you can keep using it with no connection at all, and closing the tab clears every value.