Make six servings from four
The multiplier is 6 ÷ 4 = 1.5. An ingredient listed as 1 1/2 cups becomes 2 1/4 cups, while 2 eggs become 3 eggs.
Your recipe
Start lines with an amount: 1.5, 1/2, 1 1/2, or ½. Ranges such as 1–2 scale at both ends. Units and package sizes stay as written.
Scaled ingredients
Multiply every amount by
1.5×
4 → 6 servings
1 line needs review. Unrecognized amounts stay unchanged.
| Original | For 6 servings |
|---|---|
| 1 1/2 cups all-purpose flour | 2 1/4 cups all-purpose flour |
| 3/4 cup milk | 1 1/8 cup milk |
| 2 eggs | 3 eggs |
| 2 (14-ounce) cans diced tomatoes | 3 (14-ounce) cans diced tomatoes |
| 1–2 tsp dried herbs | 1 1/2–3 tsp dried herbs |
| Salt to taste | Salt to taste Review: No clear leading amount. Check this line manually. |
Decimals display up to 4 places; very small amounts use scientific notation. Review seasoning, egg portions, pan size, and cooking time before cooking.
Recipe text is processed in your browser. This tool does not upload or save your ingredient list.
How to use the Recipe Scaler
- 01
Enter the recipe’s original serving count and the number you want to make. Both must be greater than zero; fractions are accepted.
- 02
Paste one ingredient per line, with its amount first. For example: 1 1/2 cups flour, ½ tsp salt, or 2–3 carrots.
- 03
Review unchanged lines and any package sizes, then copy the ingredients or download a plain text recipe.
Examples
Keep the package size intact
Scaling “2 (14-ounce) cans tomatoes” by 1.5 produces “3 (14-ounce) cans tomatoes.” The leading can count changes; the size printed inside parentheses does not.
Preserve a seasoning range
At half size, “1–2 tsp dried herbs” becomes “1/2–1 tsp dried herbs.” “Salt to taste” stays unchanged and receives a review note.
The recipe scaling formula
Divide desired servings by original servings to get the multiplier. Multiply each ingredient’s leading amount by that number. This preserves ingredient proportions; it does not convert cups to grams or decide how much food one serving represents. You can also use the serving fields as batch weights or yields if both use the same unit.
Fractions, decimals, and pasted lists
Amounts can be whole numbers, decimals with a period, slash fractions, mixed numbers, or common fraction characters. Examples include 2, 0.75, 3/4, 1 3/4, and 1¾. Familiar fractions are shown when they match the calculation; other results display up to four decimal places. A zero denominator, unclear leading number, or reversed quantity range is flagged for review.
What to check before cooking
The tool changes amounts, not instructions. Read the recipe again for numbers embedded in directions, package sizes, and ingredients measured “to taste.” A fractional egg may need to be beaten and portioned by weight. Pan capacity, layer depth, and heat distribution also matter when you change batch size, so review the recipe’s method rather than applying the serving multiplier to its cooking time.
What to know
- Only leading ingredient quantities are scaled. Directions, embedded measurements, and package sizes require review.
- Results are mathematical proportions, not tested recipe adaptations. Ingredient lists are limited to 100,000 characters and 1,000 nonempty lines.
Common questions
Does doubling a recipe double the oven temperature or cooking time?
No. This tool scales ingredient amounts only. Keep temperature and timing decisions tied to the recipe, food, equipment, and doneness checks. The tool does not generate cooking instructions.
Why did an ingredient stay unchanged?
The parser needs a clear amount at the start of a line. Headings, “a pinch,” ingredient names without quantities, and malformed numbers remain as written with a review note. Move the quantity to the front when appropriate.
Can I enter half a serving?
Yes. Original and desired servings accept decimals and fractions. For example, going from 8 servings to 2 1/2 uses a multiplier of 0.3125.
Will it change teaspoons to tablespoons?
No. Original units stay intact, which makes comparison easier. Use the Cooking Unit Converter if you want a different measurement unit.