Ingredients
Scaled Recipe
Scaling a Recipe with the Calculator
Paste your ingredient list exactly as you found it – the calculator handles messy formats. Whether the recipe writes “2 cups flour” or “flour, 2 cups” or “200g butter,” it figures out the quantity, unit, and ingredient automatically.
Set your original serving size and desired serving size. The math happens instantly. Use the quick multiplier buttons for common adjustments, or type exact numbers for precision.
Accepted Formats
2 cups all-purpose flourbutter - 250gSalt, 1/2 tsp3 large eggsCommon Recipe Scaling Scenarios
Halving
Cooking for two instead of four. Recipe makes too much for your household.
Doubling
Dinner party, family gathering, or meal prep for the week ahead.
Odd Numbers
Recipe serves 4, you need 6. Enter those numbers directly.
Quick Unit Reference
The calculator converts between metric and US imperial units automatically. Here’s the reference if you need to verify or do mental math:
| Volume (US) | Metric | Notes |
|---|---|---|
| 1 teaspoon | 5 ml | Standard measuring spoon |
| 1 tablespoon | 15 ml | 3 teaspoons |
| 1 cup | 237 ml | 16 tablespoons |
| 1 pint | 473 ml | 2 cups |
| 1 quart | 946 ml | 4 cups |
| Weight (US) | Metric | Notes |
|---|---|---|
| 1 ounce | 28 g | Small amounts of cheese, chocolate |
| 4 ounces | 113 g | 1 stick of butter |
| 8 ounces | 227 g | ½ pound |
| 1 pound | 454 g | 16 ounces |
For one-off conversions beyond this table, the milliliters to fluid ounces converter and the grams to ounces calculator give precise values in both directions, and the fluid ounces to cups converter covers liquid volume. Weight-to-volume switches for dry ingredients are different: 250 g of flour is 2 cups while 250 g of sugar is 1¼ cups, so use the grams to cups converter, which accounts for each ingredient’s density.
Scaling Baked Goods
Baking is chemistry. Some adjustments beyond simple multiplication help when scaling significantly:
When Doubling or More
Leavening
Baking powder/soda: scale to 0.9× when doubling. Too much creates metallic taste.
Salt & Spices
Scale to 0.75× to 0.9× for large batches. Flavors concentrate differently.
Bake Time
Larger volumes need longer time at slightly lower temperature. Check doneness early.
Pan Size
Use multiple pans rather than one huge pan for even baking.
Pan Sizes When Doubling or Halving
A scaled batter needs a pan to match, and pan capacity grows with area, not with the length printed on the tin. Multiply the two sides to compare: an 8 x 8 pan is 64 square inches, a 9 x 13 is 117, so moving between them is a 1.8× change, not 2×. Enter that number as the custom multiplier and the batter depth stays the same, which keeps bake times close to the original.
| From | To | Multiplier |
|---|---|---|
| 8 x 8 in square | 9 x 13 in | 1.8× |
| 8 x 8 in square | 9 x 9 in square | 1.25× |
| 9 x 13 in | 8 x 8 in square | 0.55× (about half) |
| 8 in round | 9 in round | 1.3× |
| 9 in round | 8 in round | 0.8× |
| 8.5 x 4.5 in loaf | 9 x 5 in loaf | 1.2× |
If the depth does change, adjust the oven instead of the clock first: shallower batter runs about 25°F hotter and shorter, deeper batter about 25°F cooler and longer, checking early either way. For cupcakes, one 9 in round layer fills roughly 12 standard cups and a 9 x 13 batch fills about 24.
Handling Eggs
Eggs don’t divide neatly. When a scaled recipe calls for a partial egg:
1
Large Egg
≈ 50g total
≈ 3 tablespoons
½
Half Egg
Beat egg, measure
1½ tablespoons
⅓
Third Egg
Beat egg, measure
1 tablespoon
For savory dishes, round to the nearest whole egg. For delicate baked goods where precision matters, beat the egg and measure out the portion you need.
Cost Tracking
Enable the cost calculator to see how scaling affects your grocery budget. Enter what each ingredient costs for the original recipe amounts – the calculator multiplies those costs along with the quantities.
This helps with meal planning decisions: sometimes doubling a recipe is more economical than making two separate dishes, and sometimes halving an expensive recipe makes it feasible for a Tuesday dinner.
Example: Scaling Economics
Original (4 servings)
$12.50
$3.13/serving
Doubled (8 servings)
$25.00
$3.13/serving
Halved (2 servings)
$6.25
$3.13/serving
Cooking Fractions
The calculator rounds to practical cooking fractions by default. Nobody measures ⅜ of a teaspoon – it rounds to the nearest fraction you can actually scoop.
⅛
0.125
¼
0.25
⅓
0.333
½
0.5
⅔
0.667
¾
0.75
Turn off “Use cooking fractions” in the options if you need exact decimal values for professional or scientific applications.
Export Options
Three ways to save your scaled recipe:
Copy
Plain text to clipboard. Paste into notes, messages, or any app.
Clean recipe card format. No interface clutter, just the ingredients.
In the print dialog, choose “Save as PDF” as the destination to keep a file for your recipe collection.
