Baking Conversions for Chefs & Bakers
Baking is chemistry — and every gram matters. American recipes use volume (cups, tablespoons), while European and professional recipes use weight (grams). The same ingredient can weigh 20–30% more or less depending on how it is measured by volume, which directly affects texture, rise, and flavor. This reference gives you the authoritative gram weights for every common baking ingredient so your results are consistent every time.
Why Weight Beats Volume in Baking
A cup of all-purpose flour can weigh anywhere from 120 g (spooned and leveled) to 160 g (scooped from the bag) — a 33% difference. In a bread recipe, that extra 40 g of flour can make the difference between a moist crumb and a dry, dense loaf. Butter measured as a packed cup versus a loosely filled cup can vary by 30 g. Professional kitchens standardize on grams because weight is independent of technique, humidity, and ingredient settling.
Baker’s Key Rule
When adapting a volume recipe to weight: spoon flour into the measuring cup and level it off, then weigh that result as your baseline. For sugar, use the packed weight for brown sugar and unpacked for granulated.
Ingredient Weight Reference Table
Weights reflect standard US measuring technique (spooned and leveled for flour, packed for brown sugar).
| Ingredient | Per Cup | Per Tbsp | Per Cup (oz) |
|---|---|---|---|
| All-purpose flour | 120–130 g | 8 g | 4.4 oz |
| Bread flour | 130 g | 8.1 g | 4.6 oz |
| Cake flour | 100 g | 6.3 g | 3.5 oz |
| Whole wheat flour | 120 g | 7.5 g | 4.2 oz |
| Almond flour | 96 g | 6 g | 3.4 oz |
| Granulated sugar | 200 g | 12.5 g | 7.1 oz |
| Brown sugar (packed) | 220 g | 13.8 g | 7.8 oz |
| Powdered sugar | 120 g | 7.5 g | 4.2 oz |
| Butter | 227 g | 14.2 g | 8 oz |
| Honey / maple syrup | 340 g | 21 g | 12 oz |
| Milk | 240 g | 15 g | 8.5 oz |
| Heavy cream | 238 g | 14.9 g | 8.4 oz |
| Cocoa powder | 85 g | 5.3 g | 3 oz |
| Rolled oats | 90 g | 5.6 g | 3.2 oz |
| Cornstarch | 120 g | 7.5 g | 4.2 oz |
Ingredient Substitutions & Equivalents
Common substitutions that require unit adjustments:
| Original | Substitute |
|---|---|
| 1 tsp baking powder | ¼ tsp baking soda + ½ tsp cream of tartar |
| 1 tsp baking soda | 3 tsp baking powder (omit salt) |
| 1 large egg | 3 tbsp aquafaba or 1 tbsp ground flaxseed + 3 tbsp water |
| 1 cup buttermilk | 1 cup milk + 1 tbsp white vinegar (stand 5 min) |
| 1 cup cake flour | ¾ cup + 2 tbsp all-purpose flour + 2 tbsp cornstarch |
| 1 cup self-rising flour | 1 cup all-purpose flour + 1½ tsp baking powder + ¼ tsp salt |