Scale Any Recipe Instantly

How to Scale a Recipe

Scaling a recipe sounds simple — just multiply the amounts, right? In practice, it's surprisingly easy to make mistakes, especially with small measurements like ½ teaspoon or ¾ cup that don't divide evenly.

This free recipe scaler handles the maths for you. Paste your ingredient list exactly as it appears in the recipe — amounts, units, and all. Set your original serving count and your target, then hit Scale.

The tool understands a wide range of formats: metric weights (250g, 1kg), volumes (ml, litres), and count-based items like eggs or cloves. It handles fractions (1/2, ¾) and ranges (1–2 tsp).

Once scaled, you can copy the full list to your clipboard or save the recipe to a free Pretzel Prep account, where it stays permanently scaled to your chosen serving size.

Common questions

Does it work for baking recipes?

Yes — just remember that baking is more sensitive to scaling than cooking. Very large scale-ups (e.g. ×10) may need adjustments to leavening agents.

What units does it support?

Grams (g), kilograms (kg), millilitres (ml), litres (l), ounces (oz), pounds (lb), teaspoons (tsp), tablespoons (tbsp), cups, and unitless counts like eggs or cloves.

Is it really free?

Completely free — no account required. If you want to save your recipes and scale them again later, a free Pretzel Prep account takes 30 seconds to create.