Recipe Scaler
Fill in the values and the answer updates as you type.
How the Recipe Scaler works
Scaled amount = original amount × servings wanted ÷ original servings. Cooking times usually do not scale in the same way.
Inputs and results
The Recipe Scaler takes 3 inputs and gives 2 results.
What you enter
- Ingredient amount — starts at 250.
- Original servings — starts at 4.
- Servings wanted — starts at 10.
What you get
- Scaled amount
- Scale factor
Example: Recipe Scaler with the starting values
With ingredient amount 250, original servings 4 and servings wanted 10, the calculator returns:
| Scaled amount | 625 |
|---|---|
| Scale factor | 2.5 |
Change any value above and the results update straight away.
Recipe Scaler FAQ
How do I use the Recipe Scaler?
Enter ingredient amount, original servings and servings wanted in the fields, then read scaled amount and scale factor in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Recipe Scaler calculate?
Scale an ingredient amount up or down for more or fewer servings. It returns scaled amount and scale factor from the 3 values you provide.
What values does the Recipe Scaler start with?
It opens with ingredient amount 250, original servings 4 and servings wanted 10 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Recipe Scaler free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Recipe Scaler for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.