Percentage calculator
Calculate percentages online, including percent of a number, percentage increase, and percentage decrease.
Recipe scaler
Scale ingredient quantities from the original servings to your chosen servings.
Works on your device. Your files are never uploaded.
Preparing this page for offline use…
How to use Recipe scaler
Enter original and target servings and one ingredient per line, beginning each line with a quantity. Supports decimals, fractions, mixed fractions, and common Unicode fractions. Lines without a quantity are kept as written; check rounding when cooking.
Files and calculations stay on your device. After this page and its assets have loaded, it works without an internet connection.
Recipe scaler FAQs
Is Recipe scaler free?
Recipe scaler is a free online tool on ReallyUseful.Tools. No account is required.
Does Recipe scaler run in my browser?
Recipe scaler is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
More Calculators
Age calculator
Calculate exact age from date of birth in years, months, days, and more with a simple online age calculator.
BMI calculator
Calculate your BMI online using height and weight. Get body mass index results with metric and imperial units.
Mortgage calculator
Estimate monthly mortgage payments with loan amount, interest rate, term, deposit, taxes, and fees.
Loan calculator
Calculate loan payments, total interest, and repayment schedules for personal loans and other borrowing.