About this tool

Cups to Grams Converter

Convert cups, tablespoons and millilitres to grams for 40+ baking ingredients using real density data.

The Cups to Grams Converter turns a volume measure into a weight for a specific ingredient by using that ingredient's own density rather than one blanket conversion — 1 US cup is 120 g of all-purpose flour, 200 g of granulated sugar and 227 g of butter. It covers 44 baking staples across flours, sugars, fats, dairy, mix-ins and leaveners, accepts cups, tablespoons, teaspoons, millilitres or fluid ounces, and converts in both directions so you can go from grams back to cups too. You choose the 240 ml US cup or the 250 ml metric cup, because the same recipe written in each means different amounts.

How to use Cups to Grams Converter

1. 1

   Open Cups to Grams Converter on AltFTool — it loads instantly in your browser.

2. 2

   Choose your ingredient from the Ingredient dropdown or the shortcut chips under it, then set Cup standard to US cup (240 ml) or Metric cup (250 ml).

3. 3

   Enter the amount in the Volume box and pick cups, tablespoons, teaspoons, millilitres or fluid ounces — or type into the Weight box instead and the volume updates.

4. 4

   Read the gram figure with its Ounces, Tablespoons, Teaspoons and Millilitres cards, then press Copy result to take the whole conversion.

Why use Cups to Grams Converter

• Per-ingredient density, not one ratio

  Each of the 44 ingredients carries its own grams-per-cup figure, so rice flour at 158 g and almond flour at 96 g are never converted with the same number.

• Both cup standards handled

  You pick the 240 ml US cup or the 250 ml metric cup, and every result including the tablespoon and teaspoon breakdown is recalculated for that standard.

• Shows the scooping penalty

  For flours and powders it reports both the spooned-and-levelled weight and the dip-and-sweep weight, which is where most volume-measuring errors come from.

Common use cases

• You are following an American food blog that lists cups but your kitchen scale is the only measuring tool you own, and you need the gram weight for each ingredient before you start.
• An Indian or Australian cookbook says one cup and you are not sure whether that means 240 ml or 250 ml — a 4% difference that shows up in a cake but not in a soup.
• Your bread comes out dry every time and you suspect the cause is scooping flour straight from the bag, so you want to see how much heavier a scooped cup is than a spooned one.

Frequently asked questions