Scale any recipe to your desired serving size
4 servings → 8 servings (2.00x)
When scaling baked goods by more than 2x, consider adjusting baking time and temperature. Larger batches may need lower temperatures and longer cook times.
Salt, spices, and strong flavors do not always scale linearly. Start with 75% of the scaled amount for seasonings and adjust to taste.
Baking powder and baking soda can be tricky when scaled up. For doubling, use the full amount; for 3x or more, use only about 2.5x the original.
A doubled recipe may not fit in the same pan. Use a larger pan or divide into two pans. Adjust baking time accordingly for different pan sizes.
Scale eggs directly by count. If a recipe calls for 2 eggs and you are halving, use 1 egg. For odd divisions, lightly beat the egg and measure half.
Liquids in stews and sauces may not need to scale exactly. Start with slightly less than the scaled amount and add more as needed during cooking.
| 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 |
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.
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.
See all cooking and baking tools
Last Updated: Feb 13, 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.