Travel, Auto & Lifestyle
Recipe Scaling Calculator
Recipe Scaling Calculator is a browser-based calculator tool on CalcToolsBase. Free, browser-based Recipe Scaling Calculator with instant, clearly-labelled results. No signup, no uploads. To use it, enter your values and view the result directly in your browser — no signup and nothing to install.
From your original servings, target servings and ingredients, Recipe Scaling Calculator computes the converted amounts for your recipe via standard cooking measures. No accounts, no uploads — just an instant way to convert or scale kitchen measurements.
About this calculator
Use the Recipe Scaling Calculator to convert or scale kitchen measurements. It reads your original servings, target servings and ingredients, computes the converted amounts for your recipe with standard cooking measures, and shows the result clearly labelled. Because the calculation happens in your browser, your figures never leave the page and there is nothing to install.
For home cooks and bakers, it turns the calculation into a quick, repeatable check and presents the converted amounts for your recipe plainly. Everything is computed locally, so your figures stay on your machine.
How to use
- Enter the original number of servings.
- Enter the target number of servings.
- Paste your ingredients, one per line (for example: 500 g flour).
- Press Calculate to scale every quantity.
Why use Recipe Scaling Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard conversion factors where applicable. Check critical measurements before relying on the result.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Recipe Scaling for scaling a recipe up or down
Recipe Scaling for halving or doubling a dish
Recipe Scaling for batch cooking and meal prep
Recipe Scaling for catering quantities
Recipe Scaling for baking with precise amounts
Recipe Scaling when sharing a recipe in metric
Technical notes
Recipe Scaling Calculator multiplies every ingredient amount by the ratio of new servings to original servings.
Scaling multiplies each ingredient by the serving ratio; pan size, cooking time and very different batch sizes may need extra adjustment.
Nothing you type is uploaded — the calculation happens entirely on your device.
FAQ
Can I scale fractions like ½ cup?
Yes. Enter fractions as 1/2 and mixed numbers as 1 1/2; both are scaled correctly.
What does it change in each line?
It multiplies the leading quantity by the scaling factor and keeps the unit and ingredient name.
What if a line has no number?
That line is kept as written and marked, so notes and headings are left untouched.
Does the Recipe Scaling Calculator send my data to a server?
No. The Recipe Scaling Calculator runs entirely in your browser, so nothing you enter is uploaded, stored, or shared.
Worked example
Scaling a 4-serving recipe to 6 multiplies every quantity by 6 ÷ 4 = 1.5, so 200 g flour becomes 300 g.