# रेसिपी की मात्रा बदलें

> Scale a recipe to any number of servings: each ingredient is multiplied by new ÷ original servings, with cups and spoons shown as kitchen fractions.

इंटरैक्टिव संस्करण: https://www.calcopenly.com/hi/everyday/recipe-scaler
विषय: दैनिक जीवन के कैलकुलेटर

Every amount is multiplied by the scale factor: the servings you need divided by the servings the recipe makes. Cup, spoon and count amounts are rounded to the nearest measure a kitchen set holds (eighths, quarters, thirds and halves) and marked ≈ when rounded. Grams, kilograms, millilitres and litres stay as decimals.

The default recipe goes from 4 to 6 servings, a factor of 1.5, so 3/4 cup of sugar becomes 1 1/8 cups and 250 g of butter becomes 375 g. The Institute of Child Nutrition teaches the same two steps for school kitchens: 35 servings from a 25-serving recipe is a factor of 1.4, which turns 3 cups of tomatoes into 4.2 cups, rounded to 4 1/4.

Lines without a number, such as "salt to taste", are kept as written. Baking time, pan size and seasoning do not scale in proportion, so check them separately.

## इनपुट

- **Ingredients, one per line**: Start each line with the amount: 2, 1 1/2, 3/4, 1.5 or ½. Lines without an amount are kept as written.
- **Recipe makes (servings)**
- **Servings you need**

## नतीजे

- Scale factor — मुख्य परिणाम
- Scaled recipe
- Lines scaled
- Lines kept as written

## सूत्र

$$
\text{new} = \text{old} \times \frac{\text{servings needed}}{\text{servings made}}
$$

## हल किए गए उदाहरण

### Default recipe from 4 to 6 servings

- Ingredients, one per line: 2 cups flour / 1 1/2 tsp salt / 3/4 cup sugar / 2 eggs / 1/3 cup milk / 250 g butter
- Recipe makes (servings): 4
- Servings you need: 6
- **Scale factor: 1.5**
- **Scaled recipe: 3 cups flour; 2 1/4 tsp salt; 1 1/8 cup sugar; 3 eggs; 1/2 cup milk; 375 g butter**
- जाँच का स्रोत: Python fractions: 2×3/2 = 3, 3/2×3/2 = 9/4, 3/4×3/2 = 9/8, 1/3×3/2 = 1/2, 250×3/2 = 375

### Halving

- Ingredients, one per line: 1 cup sugar / 2 tbsp butter / 1 egg
- Recipe makes (servings): 4
- Servings you need: 2
- **Scale factor: 0.5**
- **Scaled recipe: 1/2 cup sugar; 1 tbsp butter; 1/2 egg**
- जाँच का स्रोत: Python fractions: each amount × 1/2

### Unscaled line, unicode fraction, range and an approximate fraction

- Ingredients, one per line: Salt to taste / 1½ cups oats / 2-3 cloves garlic / 1 cup milk
- Recipe makes (servings): 6
- Servings you need: 5
- **Scaled recipe: Salt to taste; 1 1/4 cups oats; 1 2/3–2 1/2 cloves garlic; ≈ 7/8 cup milk**
- **Lines kept as written: 1**
- **Lines scaled: 3**
- जाँच का स्रोत: Python fractions: 3/2×5/6 = 5/4; 2×5/6 = 5/3, 3×5/6 = 5/2; 5/6 = 0.833 is nearest 7/8 among eighths and thirds

### 25 to 35 servings (ICN worked example)

- Ingredients, one per line: 3 cups tomatoes
- Recipe makes (servings): 25
- Servings you need: 35
- **Scale factor: 1.4**
- **Scaled recipe: ≈ 4 1/4 cups tomatoes**
- जाँच का स्रोत: Institute of Child Nutrition, Adjusting Standardized Recipes: 35 ÷ 25 = 1.4; 3 cups × 1.4 = 4.2 cups, rounded to 4 ¼ cups

### Decimal metric amounts

- Ingredients, one per line: 125 g sugar / 0.5 L stock
- Recipe makes (servings): 4
- Servings you need: 3
- **Scale factor: 0.75**
- **Scaled recipe: 93.75 g sugar; 0.38 L stock**
- जाँच का स्रोत: Hand calculation: 125 × 0.75 = 93.75; 0.5 × 0.75 = 0.375, shown to 2 decimals (half-up)

## सवाल

### How do you scale a recipe up or down?

Divide the servings you need by the servings the recipe makes, then multiply every ingredient by that factor. Going from 4 to 6 servings is a factor of 1.5, so 2 cups of flour becomes 3 cups; going from 4 to 2 is 0.5. The Institute of Child Nutrition advises converting mixed amounts such as 1 lb 8 oz to one unit (1.5 lb) before multiplying.

### What is half of 1/3 cup or 3/4 cup?

Half of 1/3 cup is 1/6 cup: 2 tablespoons plus 2 teaspoons, because a US cup holds 16 tablespoons and a tablespoon holds 3 teaspoons. Half of 3/4 cup is 3/8 cup, or 6 tablespoons. When no standard measure matches, the calculator shows the nearest eighth or third with ≈ and gives the exact decimal in the table.

### Does baking time change when you double a recipe?

Often, because baking time depends on the depth of the batter more than on its amount. Doubled batter in the same pan is twice as deep and needs longer; spread over a pan with twice the area, it keeps its depth and bakes in close to the original time. Keep the oven temperature the same and test for doneness early.

### Is a cup the same size in every country?

No. A US customary cup is 8 US fluid ounces, 236.6 mL, while the metric cup used in Australia and New Zealand is 250 mL, about 6% larger. Scaling works the same in both systems because every amount is multiplied by the same factor. NIST advises weighing ingredients on a kitchen scale for accuracy rather than measuring by volume.

### “रेसिपी की मात्रा बदलें” कितना सटीक है?

सटीकता आपके इनपुट और विधि की मान्यताओं पर निर्भर करती है। दशमलव गणना 50 सार्थक अंकों का उपयोग करती है, लेकिन अनुमान, संख्यात्मक विधियाँ और स्रोत डेटा कम सटीक हो सकते हैं। दिखाए गए मानों को पूर्णांकित करने से ये सीमाएँ दूर नहीं होतीं। स्वतंत्र स्रोतों के हल किए गए उदाहरणों से जाँच: 5। उदाहरण के लिए, “Default recipe from 4 to 6 servings” की जाँच Python fractions: 2×3/2 = 3, 3/2×3/2 = 9/4, 3/4×3/2 = 9/8, 1/3×3/2 = 1/2, 250×3/2 = 375 से की गई है।

### इस विधि का स्रोत क्या है?

Institute of Child Nutrition — Adjusting standardized recipes (factor = new yield ÷ old yield); NIST Metric Kitchen — Culinary measurement tips.

## स्रोत

- [Institute of Child Nutrition — Adjusting standardized recipes (factor = new yield ÷ old yield)](https://theicn.org/cacfp-itrain-simple-lesson-plans/training-scripts/Adjusting-Standardized-Recipes.pdf)
- [NIST Metric Kitchen — Culinary measurement tips](https://www.nist.gov/pml/owm/metric-si/metric-kitchen/metric-kitchen-culinary-measurement-tips)