Recipe Scaling
Half-Recipe Calculator
Cut a recipe in half, with practical help for half an egg, small spoon amounts, and smaller pans.
Measurement System PreferenceAuto-saved
Currently active across all 60 calculators: US Customary (cups, tbsp, oz, °F, in)
Scaling Factor
2.00x
Quick picks:
| Ingredient | Original | Unit | New amount | |
|---|---|---|---|---|
4 cups (4) | ||||
1 1/2 cups (1.5) | ||||
4 tsp (4) | ||||
1 tsp (1) | ||||
2 1/2 cups (2.5) | ||||
2 item (2) | ||||
8 tbsp (8) |
Tips for this batch size:
• Every amount is multiplied by 2 (4 → 8 servings).
How to use this calculator
- 1Enter the recipe's servings, then tap "Half (0.5x)".
- 2Add your ingredients. For eggs, choose the unit "item (e.g. egg)".
- 3Read the halved amounts. For half an egg, you'll see how many grams of beaten egg to use.
Tip: Halved cakes bake faster in a smaller pan. Start checking about 5-10 minutes early.
How it's calculated
Halved Amount = Original Amount ÷ 2
We do the math at full precision and only round the final answer, so the numbers you see are as close as kitchen measurements allow. The assumptions and limits are listed alongside.
Worked example
Scenario: Halving a cake recipe calling for 1 egg and 1 1/2 cups flour.
Inputs1 egg, 1.5 cups flour
CalculationEgg: 1 ÷ 2 = 0.5 egg (~2 tbsp beaten); Flour: 1.5 ÷ 2 = 0.75 cup (3/4 cup)
Result0.5 egg (~25g whisked) and 3/4 cup flour
Common questions
How do you measure half an egg?
Whisk the whole egg in a small bowl with a fork until the yolk and white are blended, then measure out 2 tablespoons (or weigh 25 grams on a digital scale).