Skip to content

Culinary math, solved

Kitchen

Cups to grams, air fryer conversions, recipe scaling and baking temperatures with tested culinary datasets.

What this covers

Cups-to-grams weights for 28 baking staples, spoon-and-level measured in a US 240 ml cup, and oven-to-air-fryer conversions for 30 dishes that lower the oven temperature by about 15°C and the cooking time by about 20%. Every figure names the method that produced it.

Which tool to use

Use the cups-to-grams converter when the recipe gives cups and your scale reads grams — pick the ingredient first, because density decides the weight. Use the air fryer converter when the recipe is written for an oven: it lowers the temperature by 15°C and the time by 20%, with 30 calibrated presets.

Frequently asked questions

Why does 1 cup of flour weigh 120 g while 1 cup of sugar weighs 200 g?

Because a cup measures volume, not weight, and each ingredient packs differently: granulated sugar is a dense crystal at 200 g per cup, while spoon-and-level flour holds air at about 120 g. Swapping them cup-for-cup can be off by two-thirds, which is why the converter works ingredient by ingredient.

How do I convert an oven recipe to an air fryer?

Lower the oven temperature by about 15°C and shorten the cooking time by about 20%, then check early — an air fryer circulates hot air fast in a compact basket. Each air fryer preset gives the calibrated time and temperature for its dish, so you are not guessing from the oven figure.

Can I substitute one ingredient for another cup-for-cup?

Only when their weights per cup are close. By volume, all-purpose flour at 120 g per cup and cake flour at 115 g interchange safely, but honey (340 g) or cocoa powder (100 g) would ruin the recipe. Weigh both ingredients in grams before substituting, and treat the swap as an approximation.