How do I use the Recipe Scaler?
Enter your values in the fields and the result updates instantly as you type.
Recipe Scaler
Scale recipe ingredients up or down proportionally. Enter your values, review the formula, and use the worked result as a quick check for everyday planning.
Recipe Scaler
Scale recipe ingredients up or down proportionally.
Number of servings the recipe makes
How many servings you need
Results
Scaling Ratio
1.5 x
Adjustment
50 %
Example: 1 cup →
1.5 cups
Example: 100g →
150 g
Example: 2 tbsp →
3 tbsp
Formula: Scaled Amount = Original Amount × (Desired Servings / Original Servings)
Recipe Scaler: Scale Ingredients Up or Down
Scale any recipe from its original number of servings to the number you need. See the scaling ratio, percentage adjustment, and example conversions for common ingredient amounts.
Formula
Scaling Ratio = Desired Servings ÷ Original Servings. Adjustment % = (Ratio − 1) × 100. Example conversions show what the ratio does to common measures: 1 cup, 100 g, and 2 tbsp.
Worked example
Scaling a 4-serving recipe to 6 servings: ratio is 1.5× (a 50% increase). If the original calls for 1 cup, use 1.5 cups. If 100 g, use 150 g. If 2 tbsp, use 3 tbsp.
Practical guidance
When scaling is tricky
Not all ingredients scale linearly. Spices, leavening agents (baking powder/soda), and salt may not double cleanly. Baked goods are particularly sensitive — consider making multiple batches rather than scaling a single batch beyond 2×.
Half recipes and small batches
Scaling down (e.g., 4 servings to 2) works well for soups, sauces, and most savory dishes. For baking, halving an egg is impractical — look for recipes designed for smaller batches instead.
Frequently asked questions
What formula does this calculator use?
Scaled Amount = Original Amount × (Desired Servings / Original Servings)
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.