Scale any recipe, convert cups to grams, fix oven temps and pan sizes — free, instant, and made for real cooks.
Clean, fast and accurate — in one pretty place.
Halve, double or resize any recipe to the exact servings you need.
Open tool →Convert cups, ounces and grams using real ingredient densities.
Open tool →°F to °C to gas mark, with fan/convection adjustments.
Open tool →Swap pans the smart way — by area — with adjusted bake times.
Open tool →Sticks, tablespoons, cups, grams and ounces of butter, sorted.
Open tool →Turn any oven recipe into air-fryer time and temperature.
Open tool →Safe doneness temperatures and timing for meats and more.
Open tool →Swap active dry, instant and fresh yeast without the guesswork.
Open tool → SoonNew calculators are added regularly. Tell us what you would love to see next.
Suggest a tool →The same measure-twice care — now for your whole week.
Pick your recipes for the week and the shopping list scales to your household, merges duplicates, prices everything, and groups it by aisle and store — automatically.
Also available on Etsy · lifetime access · free updates
Real ingredient densities and area-based pan math — not rounded-off rules of thumb.
Type your numbers, get your answer. No sign-ups, no apps, no clutter.
Answers in kitchen-friendly fractions, with the tricky ingredients flagged for you.
Make the tools even more useful with a little kitchen wisdom.
The easy math, plus the ingredients that need a lighter touch.
Read the guide →Scale up for a crowd without it turning out too salty or dense.
Read the guide →How pan size, leavening and time interact when you resize a bake.
Read the guide →Measure Twice Kitchen is a growing collection of free, accurate calculators and guides for everyday home cooking. Bookmark it and reach for it whenever a recipe needs adjusting.
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