Cups to Grams Converter
Convert baking ingredients between cups and grams — free, no signup, with recipe scaling.
All values are approximate: they use the spoon-and-level method (spoon the ingredient into the cup, level it off) and vary by brand, grind and how tightly the cup is packed. For baking that must be exact, weigh the ingredient directly.
What Is the Cups to Grams Converter?
A cups to grams converter is a tool that turns a volume measurement from a recipe — cups — into a weight in grams, and back again, for a chosen ingredient. Because a cup of flour weighs much less than a cup of sugar, the conversion depends on the ingredient, so this converter holds a grams-per-cup table for common baking ingredients and does the maths for you in both directions.
What Is It Used For?
Home bakers use it when a recipe is written in cups but their kitchen scale reads grams, or the other way round. Bloggers use it to convert recipes for readers in other countries. Students use it in cooking classes where one book uses cups and another uses grams. Anyone scaling a recipe up or down uses it to keep the amounts right after multiplying.
Key Benefits
- Both directions — cups to grams and grams to cups, with one switch.
- Ingredient-aware — each ingredient uses its own grams-per-cup value, not a single average.
- Fractions allowed — type "1 1/2" or "3/4" and it is understood, not rejected.
- Recipe scaling built in — halve, double or triple the recipe and the result follows.
- Honest about accuracy — every result is labelled approximate, with the reason stated plainly.
- Completely free and private — no signup, and everything runs in your browser.
How to Use This Cups to Grams Converter
- Choose the direction: Cups → Grams, or Grams → Cups.
- Pick your ingredient from the list (flour, sugar, butter, cocoa, oats, honey and more).
- Type the amount. Fractions work: "1 1/2", "3/4" and "1.5" are all accepted.
- Pick a recipe scale if you are scaling the recipe — x 0.5 halves it, x 2 doubles it, x 3 triples it.
- Read the result box: it shows the converted amount, the scaled amount, and the grams-per-cup value used.
Common Mistakes to Avoid With Cups to Grams
- Using one conversion for every ingredient. A cup of flour is about 120 g but a cup of butter is about 227 g — using a single number for both ruins the recipe.
- Packing flour into the cup. Scooping flour straight from the bag packs it down and can add 20–30% extra weight. Spoon it in and level it off, which is the method this converter's table assumes.
- Treating the result as exact. Cup weights vary by brand and grind, so a converted amount is a good guide, not a laboratory measurement — for fussy bakes, weigh directly.
- Forgetting the scale. If you doubled the recipe but converted the original amount, every ingredient will be half what it should be — set the scale before reading the result.
- Mixing up US cups and metric cups. This converter uses the US cup (about 236 ml). A metric cup (250 ml) gives slightly larger amounts.
Frequently Asked Questions
Is this cups to grams converter free? Yes, completely free — no signup, no download, no limits.
Is anything I type uploaded anywhere? No. Conversion happens entirely in your browser, so nothing you type leaves your device.
How many grams is 1 cup of flour? About 120 g for all-purpose flour, spooned in and levelled off. Bread flour is about 127 g, whole wheat about 113 g and cake flour about 100 g — pick the right flour in the list, because they differ.
How many grams is 1 cup of sugar? About 200 g for granulated sugar. Brown sugar, packed, is about 220 g and powdered sugar about 120 g — again, the type matters.
How many grams is 1 cup of butter? About 227 g, which is two standard sticks in the US. Cocoa powder (unsweetened) is about 85 g per cup and rolled oats about 90 g.
Are the results exact? No — they are approximate. Cup weights change with brand, grind, moisture and how the cup is filled. The table assumes the spoon-and-level method. For recipes where precision matters, weigh the ingredient on a scale instead.
Can I convert grams back to cups? Yes. Switch the direction to Grams → Cups, pick the ingredient and type the grams. The result shows cups as a decimal and as a nearest fraction, for example 0.75 cup (3/4 cup).
Can I type fractions? Yes. "1 1/2", "3/4" and "1.5" are all accepted in the amount box.
How does recipe scaling work? The scale multiplies your amount before converting. With x 2, "1 cup flour" becomes 2 cups, which converts to 240 g. The result box shows both the scaled amount and the final conversion.
What is a US cup in millilitres? About 236 ml. A metric cup is 250 ml, so if your recipe uses metric cups the amounts here will read slightly low — about 6% low.
What if my ingredient is not in the list? Then it is not covered by this version. Use the closest similar ingredient as a rough guide, or weigh it directly — do not trust a guess for a recipe that depends on it.
Does it work on mobile? Yes. The tool runs in any modern mobile browser and the layout adjusts to small screens.
Why does another converter show a different number? Because cup-weight tables differ slightly between sources, especially for flour and sugar. Differences of a few grams are normal; the method (spoon-and-level versus scooped) matters more than the table.
Final Thoughts
Cups are convenient, grams are consistent — this converter bridges the two without a cookbook full of tables. Use it for everyday baking, remember it is approximate, and weigh directly when a recipe leaves no room for error.
