Online Tool Hub

Recipe Scaler

Scale any recipe up or down. Enter original and target servings, list your ingredients, and get adjusted amounts instantly — perfect for meal prep, parties, or cooking for two.

Recipe details

Scale factor: ×1.5 — multiply every ingredient amount by this number.

Ingredients

  • Scaled: 3 cups all-purpose flour

  • Scaled: 1.5 cup granulated sugar

  • Scaled: 4.5 large eggs

  • Scaled: 1.5 cup whole milk

  • Scaled: 0.75 cup unsalted butter

  • Scaled: 3 tsp vanilla extract

Scaled recipe (6 servings)

  • 3 cups all-purpose flour
  • 1.5 cup granulated sugar
  • 4.5 large eggs
  • 1.5 cup whole milk
  • 0.75 cup unsalted butter
  • 3 tsp vanilla extract

About Recipe Scaler

Free online recipe scaler. Scale recipe ingredients from one serving size to another — double a batch, halve for two, or adjust for any crowd. No signup required — runs in your browser.

Why choose Online Tool Hub?

  • Free forever — supported by non-intrusive ads
  • Runs in your browser — inputs are never uploaded
  • Works on desktop and mobile
  • Part of 24 free nutrition tools on Online Tool Hub

Frequently asked questions

How does recipe scaling work?
Divide your target servings by the original servings to get a scale factor. Every ingredient amount is multiplied by that factor — for example, scaling from 4 to 8 servings doubles each quantity.
Can I scale any unit?
Yes. Enter amounts in cups, grams, tablespoons, or any unit you use. The scaler adjusts the number; you keep the same unit.
Does this calculate nutrition?
This tool scales ingredient quantities only. For USDA-backed nutrition totals, use Meal & Recipe Nutrition after scaling your amounts.
Is my recipe saved anywhere?
No. Ingredients are kept in your browser session only and are not uploaded to our servers.
Do I need an account?
No signup is required. All nutrition tools on Online Tool Hub are free to use.