Scale the full quantity.
Mixed and Unicode fractions, range endpoints, and quantities after “plus” are handled together. Units are kept as written.
THE RECIPE WORKBENCH
Half recipe calculator.
Cut a recipe in half, carefully.
Paste your ingredients and the servings are preset to half: 4 servings becomes 2, a scale factor of 0.5. Change either number if your recipe serves something else.
Need a different size? Use the full recipe conversion calculator.
Made for the details
Fractions & ranges
“Plus” quantities
Package sizes kept intact
02 / YOUR REVIEW
Every amount, in view.
A little care before you cook.
Your original and scaled amounts will appear here. Edit anything that needs a human decision, then confirm each line.
TimeTemperaturePan size
These never get multiplied automatically.
Your recipe changed. Scale & review again to prepare a fresh export.
Method check
Suggestions match amount, unit and a nearby ingredient name. They are not proof that a step is correct.
Confirm only after checking quantities, notes, and how you’ll cook it.
A CLEARER WAY TO SCALE
Keep the context.
Two 14-ounce cans become three cans when you scale by 1.5. The 14-ounce package size stays the same. Other parenthetical numbers are flagged.
Leave with a checked copy.
Unknown notation is left unchanged with a note. Adjust the results yourself and export a record of the original, your edits, and the review notes.
QUESTIONS ABOUT SCALING
How do I convert a recipe to a different number of servings?
Enter the original servings and the new servings. The tool divides one by the other to get a scale factor and applies it to each ingredient quantity. Four servings to six, for example, is a factor of 1.5.
How do I cut a recipe in half?
Set the new servings to half of the original, or keep the preset. Each ingredient quantity is multiplied by 0.5. Cooking time, temperature and pan size are not changed automatically, so check them for the smaller batch.
Why do some halved amounts look odd?
Half of 1 egg or 1 tablespoon plus 1 teaspoon does not always land on a tidy measure. The tool shows the result with a note so you can decide how to measure it. Decimals may be rounded.
A calculator, with room for judgment.
No unit conversion, nutrition estimates or cooking guarantees. Scaling changes quantities; it does not determine cooking times, safe temperatures, pan capacity, or whether a recipe will work at a new size.
Privacy & measurement
Ingredients, steps and edited results are processed in this tab, without being sent to a server or saved by this app. Closing or reloading the tab clears recipe content. Copy and download are your choice.
We measure anonymous page visits, review starts, explicit result confirmations and exports. A random session identifier is kept in sessionStorage, and only the last visit date is kept in localStorage to recognize a return within 60 days. Neither stores recipe content. Test visits use ?test=1 and are separated from ordinary use.