About

Cooking is chemistry, and precision is the difference between a masterpiece and a mess. Whether you are scaling down a wedding cake for a dinner party or multiplying a soup recipe for a crowd, linear multiplication is rarely enough. The Smart Recipe Scaler handles the complexity of kitchen mathematics so you can focus on the technique.

This tool goes beyond simple multiplication. It features a Smart Unit Engine that automatically promotes measurements (converting 16 tbsp to 1 cup) and a Fraction Processor that handles inputs like 1 12. For professional bakers, the Baker’s Percentage Mode calculates hydration and ratios relative to flour weight, ensuring dough consistency at any size.

Formulas

The core scaling logic uses a multiplier derived from the ratio of desired servings to original servings.

ScaleFactor = Desired ServingsOriginal Servings

For the Baker’s Percentage mode, the weight of each ingredient is normalized against the total weight of the flour in the recipe.

Baker% = Ingredient WeightTotal Flour Weight × 100%

When converting units intelligently, the system checks if the scaled volume crosses specific thresholds (e.g., V > 768 tsp) to determine the most readable unit (e.g., gallons).

Reference Data

Measurement	Equivalent (Vol)	Metric (Approx)	Notes
1 pinch	1/16 tsp	0.3 ml	Generic dry small qty
1 tsp	1/3 tbsp	5 ml	Standard teaspoon
1 tbsp	3 tsp	15 ml	Standard tablespoon
1 fl oz	2 tbsp	29.5 ml	US Fluid Ounce
1/4 cup	4 tbsp	60 ml	Standard volume
1 cup	16 tbsp	240 ml	US Cup (approx)
1 pint	2 cups	473 ml	US Pint
1 quart	2 pints	0.95 L	US Quart
1 gallon	4 quarts	3.78 L	US Gallon
1 oz (wt)	N/A	28.35 g	Weight ounce
1 lb (wt)	16 oz	453.6 g	Pound

Frequently Asked Questions

This is the "Smart Scale" feature. If you multiply a recipe by 10x, measuring 30 teaspoons is tedious and prone to error. The tool automatically converts this to roughly 1/2 cup plus 2 tablespoons, which is much faster to measure.

Toggle the 'Baker's % Mode' switch. Ensure at least one ingredient contains the word "flour". The tool will identify the flour as 100% and calculate all other ingredients (water, salt, yeast) as a percentage of the flour weight. This is critical for scaling bread doughs while maintaining hydration.

Yes. The parser understands integers (2), decimals (2.5), simple fractions (1/2), and mixed fractions (1 1/2). It will also try to output the result in the most logical fraction format for kitchen use.

The "Cooking Mode" utilizes the Screen Wake Lock API. It is supported by most modern browsers (Chrome, Edge, Safari on iOS 16.4+). If your battery is low or the browser minimizes, the lock may release automatically to save power.