A smart recipe adjuster that knows doubling a spice blend doesn't mean doubling every spice, and halving a cake means changing the pan too.
Paste your recipe below, tag each ingredient, and set your serving sizes. The scaled version appears on the right with practical notes.
Your scaled recipe will appear here.
Add ingredients on the left, pick categories, and click Scale.
Most recipe calculators just multiply every number by the same ratio. That works for flour and broth. It fails for salt, baking powder, and cinnamon. This scaler uses category-based rules that match how experienced cooks actually adjust recipes.
Spices scale at 75% of the linear ratio. If you double a recipe, you only increase salt and dried spices by 1.5x. Strong spices like cayenne and cinnamon get flagged so you can taste and adjust. Salt especially needs care because over-salting cannot be fixed.
Leaveners scale at 85% of the ratio. Too much baking powder makes cakes taste metallic and collapse in the center. When halving a baking recipe, the tool reminds you to use a smaller pan, or the bake will be too thin and dry out.
Butter, oil, and other fats scale linearly up to 2x. Beyond that, the tool adds a note to check your pan or pot size, because a thin layer of oil in a wide pan burns before food cooks through.
Water, broth, milk, flour, rice, and sugar scale linearly. These are the forgiving ingredients. The one exception is very large batches (4x or more), where cooking time increases faster than volume.
Our taste buds perceive salt non-linearly. Doubling salt in a doubled recipe often tastes too salty. This scaler uses 75% scaling for salt and lets you adjust to taste after cooking.
You can, but expect the tool to add warnings. Very large batches cook differently. Heat doesn't distribute the same way. Use the scaled ingredient amounts but watch cooking time carefully.
The tool rounds eggs to the nearest whole number and adds a note when the rounding is more than half an egg. For precision, weigh the egg on a kitchen scale (about 50g per large egg without shell).
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