Free Recipe Scaler (+ Guide)

What is a recipe scaler?

A recipe scaler changes a recipe's amounts for a different number of servings.

It's the same as a recipe converter or resizer: you give it the recipe and the size you want, and it does the multiplying.

How to scale a recipe

You need the ingredient list and 2 numbers.

It reads amounts like 1 1/2, 1½ and 0.75, and units like cups, tbsp, tsp, grams and ounces. A line without an amount, like "salt to taste", stays as it is.

A worked example

Here's the example the calculator loads: chocolate chip cookies for 24, scaled to 36, which is × 1.5.

The grams use USDA FoodData Central's weight for each ingredient's cup.

What doesn't scale

Some things change with size in ways a multiplier can't know.

• Baking time: a bigger cake in a bigger pan needs a different time, so check it early
• Pan size: a doubled batter in the same pan bakes thick and slow
• Eggs: 1½ eggs means beating 2 and using three quarters, or rounding
• Pots: a doubled stew needs a pot big enough to hold it

Who is the recipe scaler for?

It's for anyone cooking for more or fewer people, and these tools help around it.

• Cups to grams converter – for weighing instead of measuring
• Cooking converter – for any kitchen unit
• Oven temperature converter – for °F, °C and gas marks
• Fraction calculator – for fraction math by hand

Scale it, weigh it, and taste as you go.