Double Recipe Calculator
Double any recipe in seconds — every ingredient, no mental math.
Paste the recipe, set the original servings, and enter double. The tool multiplies every quantity and keeps the units clean.
AI results are for reference only. Verify quantities against your original recipe before cooking or baking. Not medical or nutritional advice. Learn more
How to double a recipe
- Paste the recipe into the box above (the ingredient list is enough).
- Set the original servings (e.g. "4").
- Enter double (e.g. "8") as the target.
- Click Scale My Recipe — every quantity is doubled instantly.
What to watch when you double
- Salt and spices: double them, but taste and adjust at the end — strong seasonings don't always scale 1:1.
- Pan size: a doubled batter needs more pan area or a second pan, not just a deeper fill, or the middle won't cook.
- Cooking time: doesn't double — check at the original time and add minutes as needed.
- Leavening: baking soda and powder usually double fine for most home recipes.
More recipe tools
- Half recipe calculator
- Recipe multiplier (any factor)
- Recipe scaling calculator
- Recipe reduction calculator
FAQ
Q: How do I double a recipe?
Multiply every ingredient by two. Paste the recipe above, set the original servings, and enter double that number — the calculator rewrites each amount instantly, including fractions and mixed units.
Q: Should I double the salt and spices too?
Double them, but season to taste at the end. Salt, spices, garlic, and leavening (baking soda/powder) don't always scale perfectly — start with the doubled amount, then adjust. For baking soda and powder, doubling is usually fine.
Q: Does a doubled recipe take twice as long to cook?
No. Cooking and baking times don't double. A bigger batch may need a larger pan or a few extra minutes, but a doubled cake in two pans bakes in about the original time. Watch the food, not just the clock.