Recipe Scaler Calculator
Scale a recipe between serving sizes and convert an ingredient amount. This free online cooking & kitchen calculator runs entirely in your browser — no signup, no data sent anywhere.
Inputs
Results
How It Works (Formula & Method)
The scale factor is the desired servings divided by the original servings. Multiply every ingredient by that factor. Keep an eye on cooking times and seasoning, which do not always scale linearly.
Worked Example
Below is a worked example using the calculator's default values. The same numbers are pre-filled in the form above so you can press Calculate and see the result without typing anything.
Inputs used:
- Original Servings: 4
- Desired Servings: 6
- Ingredient Amount (any unit): 2
With these inputs, the calculator computes the metrics shown in the Results panel. Change any value and press Calculate again to see how the result responds — the live widget and the chart both update instantly.
Frequently Asked Questions
What does the Recipe Scaler Calculator compute?
The Recipe Scaler Calculator takes 3 input values and returns 2 results. Scale any recipe up or down between serving sizes and instantly convert a single ingredient amount to the new quantity.
Is my data sent to a server?
No. The Recipe Scaler Calculator runs entirely in your browser using static JavaScript. Your inputs are never transmitted to CalculatorHive or any third party, and nothing is stored after you close the page.
Is this calculator free to use?
Yes. Every calculator on CalculatorHive is completely free. There is no signup, no paywall, and no usage limit. The site is supported by display advertising and affiliate partnerships, which are clearly labeled.
How accurate is the result?
The math is mathematically exact for the inputs you provide. Real-world accuracy depends on how accurately your inputs reflect the real situation — defaults are typical values, not guarantees.