Recipe Scaler: Halve, Double or Resize Any Recipe
Paste an ingredient list and scale it by a factor or by servings. Measurable fractions are kept, and amounts that would be awkward — like half of ⅓ cup — are rewritten as cups, tablespoons and teaspoons.
Recipe scaler
Paste ingredient lines (one per line). Leading amounts like 2, 1 1/2, ¾ or 0.5 are scaled; everything else is left as written.
How to use it
- Paste your ingredients, one per line.
- Tap ½×, 2× or 3×, type any factor (like 1.5), or fill in Serves and Want.
- Only the amount at the start of each line is scaled; notes such as “pinch of salt” stay as written.
- Copy the scaled list into your notes, or keep this page open while you cook.
Scaling changes amounts, not pan size or baking time. Bigger or smaller batches usually need a different pan and a doneness check earlier or later than the recipe says.
Quick reference
Calculated with the same math as the converter above.
| Original | ½× | 1½× | 2× |
|---|---|---|---|
| 1 cup | ½ cup | 1½ cups | 2 cups |
| ¾ cup | ¼ cup + 2 tbsp | 1 cup + 2 tbsp | 1½ cups |
| ⅔ cup | ⅓ cup | 1 cup | 1⅓ cups |
| ½ cup | ¼ cup | ¾ cup | 1 cup |
| ⅓ cup | 2 tbsp + 2 tsp | ½ cup | ⅔ cup |
| ¼ cup | 2 tbsp | ¼ cup + 2 tbsp | ½ cup |
| 1 tbsp | ½ tbsp | 1½ tbsp | 2 tbsp |
| 1 tsp | ½ tsp | 1½ tsp | 2 tsp |
Frequently asked questions
How do I halve a recipe that uses one egg?
Beat the egg and use half of it. A large egg is about 50 g out of the shell, so about 25 g is half.
Does baking time change when I double a recipe?
Often. If you use a bigger or deeper pan, baking time usually increases; two pans of the original size bake in roughly the original time. Check for doneness rather than relying on the clock.
What pan should I use for a double batch?
Match the area. For example, a doubled 8-inch square recipe fits a 9×13-inch pan well.
Can I convert the scaled recipe to grams?
Yes. Take each scaled line to the cups to grams converter and pick the ingredient. Open the cups to grams converter →