How do I convert a recipe from cups to grams when scaling?

First scale the recipe using this calculator to get the new cup amounts. Then use our Cups to Grams Converter to convert any cup measurement to grams. Weighing ingredients by grams is always more accurate than cups, especially when scaling recipes up or down.

Recipe Scale Calculator — Double, Triple or Halve Any Recipe

Q: How do I double a recipe?

To double a recipe, multiply every ingredient amount by 2. For example, if a recipe calls for 1.5 cups of flour, you will need 3 cups. One exception: do not always double leavening agents (baking powder, baking soda, yeast) — start with 1.75x and adjust, as too much can make baked goods taste metallic or collapse.

Q: How do I scale a recipe up or down?

Divide your desired number of servings by the original number of servings to get the scaling factor. Then multiply every ingredient amount by that factor. Example: recipe serves 4, you want 10 — factor is 10÷4 = 2.5. Every ingredient × 2.5.

Q: Can I double baking powder when doubling a recipe?

For baking, do not simply double leavening agents. When scaling up baking recipes, increase baking powder and baking soda by about 1.75x instead of 2x. Too much leavening can cause baked goods to rise too fast and collapse, or leave a metallic taste. Salt can be scaled at 1.5x when doubling.

Q: How do I scale a recipe for meal prep?

Decide how many portions you need for the week (e.g., 5 days × 2 people = 10 servings). Divide 10 by the original recipe servings to get your multiplier. Use this calculator to scale every ingredient. For meal prep, buy in bulk: scale up dry ingredients, proteins, and vegetables accordingly.

✖️ Recipe Scale Calculator

Double, triple, halve, or multiply any recipe. Enter your original and desired servings — every ingredient scales instantly.

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×2 multiplier — all ingredients doubled

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Recipe Scaling — Quick Answers

How do I double a recipe?

Multiply every ingredient by 2. Exception: don’t fully double leavening agents (baking powder, baking soda) — use 1.75× instead. Too much leavening causes collapse or metallic taste. Salt can be increased by 1.5× when doubling.

How do I scale a recipe for meal prep?

Decide total portions needed (e.g., 5 days × 2 people = 10 servings). Divide by original servings: 10 ÷ 4 = 2.5×. Enter those numbers above and every ingredient scales automatically. Use the ×5 preset for a standard week of meal prep for 2.

Does scaling change cooking time?

Usually no for individual portions (doubling a chicken breast recipe doesn’t double the cook time per piece). But cooking time DOES increase if you’re filling a larger pan or cooking a bigger roast. For baked goods in a larger pan, add 15–20% more time and check with a toothpick.

Can I use grams instead of cups when scaling?

Yes — and it’s more accurate. Scale first with this calculator, then use our Cups to Grams Converter to convert the scaled cup amounts to grams. Weighing is especially important for flour and sugar in baking.

Frequently Asked Questions

How do I double a recipe?+

Multiply every ingredient by 2. Exception: for baking, use 1.75× for baking powder and baking soda — too much leavening causes metallic taste or the bake to rise too fast and collapse. Use this calculator, then flag any leavening agents to adjust manually.

How do I scale a recipe up or down?+

Divide desired servings by original servings = multiplier. Then multiply every ingredient by that number. Enter both values in the calculator above and it does the math for you instantly.

Can I double baking powder when doubling a recipe?+

No. When doubling a baking recipe, increase baking powder and baking soda by about 1.75× rather than 2×. Too much leavening causes baked goods to rise too quickly, then fall, and can leave a metallic aftertaste. Salt can also be scaled at 1.5× when doubling.

Does scaling a recipe change the cooking time?+

Not for individual portions. If you double a chicken breast recipe, each breast cooks the same time. But a doubled cake in a larger pan needs 15–20% more time. A larger roast needs more time. Check doneness by temperature, not just time.

How do I scale a recipe for a party?+

Enter original servings and your guest count. The multiplier does the rest. For large batches, prep ingredients in separate bowls and combine in stages — most home mixers and pots can’t handle very large quantities at once.

Scaling results are for reference. Always verify by taste, especially for salt and spices — these don’t always scale linearly. For baking, leavening agents (baking powder, baking soda, yeast) should be scaled conservatively. When in doubt, test with a small batch first.