Scale Factor
2.00x
Ingredients
3
Servings
8
4 servings → 8 servings (2.00x)
When scaling baked goods by more than 2x, consider adjusting baking time and temperature.
Start with 75% of the scaled amount for seasonings and adjust to taste.
For 3x or more, use only about 2.5x the original baking powder/soda.
A doubled recipe may not fit in the same pan. Use a larger pan or divide into two.
| Measurement | Equivalent | Metric |
|---|---|---|
| 1 cup | 16 tbsp / 48 tsp | 237 ml |
| 1 tbsp | 3 tsp | 15 ml |
| 1 tsp | 1/3 tbsp | 5 ml |
| 1 oz (fluid) | 2 tbsp | 30 ml |
| 1 lb | 16 oz | 454 g |
| 1 stick butter | 1/2 cup / 8 tbsp | 113 g |
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Inputs
Result
With a 2x scale factor, all ingredients are simply doubled. This is the most straightforward scaling scenario.
Inputs
Result
Scaling from 6 to 2 servings divides all ingredients by 3. The converter shows results in easy-to-measure fractions.
Set the original servings to your recipe's serving count and the desired servings to double that number. For example, if your recipe makes 4 servings, enter 4 as original and 8 as desired. All ingredients will be multiplied by 2. Note: for baking, leavening agents (baking powder/soda) may need slight reduction when more than doubling.
Enter your recipe's original serving count and half that number as desired servings. For example, 6 original and 3 desired gives a 0.5x scale factor. Odd eggs can be halved by beating the egg and measuring half. For very small amounts (like 1/8 tsp), use a pinch as an approximation.
Most ingredients scale linearly, but some need adjustment. Seasonings and salt should start at 75% of the scaled amount and be adjusted to taste. Baking powder/soda for 3x+ recipes should use about 2.5x the original. Cooking liquids in stews may need slightly less than the full scaled amount.
Common conversions: 1 cup = 16 tbsp = 48 tsp = 237 ml. 1 tbsp = 3 tsp = 15 ml. 1 lb = 16 oz = 454 g. 1 stick butter = 1/2 cup = 8 tbsp = 113 g. When scaling produces awkward fractions, convert to a smaller unit for easier measuring.
| Volume | Tbsp | Tsp | mL |
|---|---|---|---|
| 1 cup | 16 | 48 | 237 |
| 3/4 cup | 12 | 36 | 177 |
| 1/2 cup | 8 | 24 | 118 |
| 1/4 cup | 4 | 12 | 59 |
When scaling up, larger volumes generally need lower temperature (25°F less) and longer baking time. When halving, use the same temperature but check for doneness earlier. Pan size matters too — if you change pan size, adjust time accordingly. Use a thermometer for accuracy.
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Last Updated: Mar 26, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.