Estimate how much formula a baby needs per day and per feed from body weight or age and the number of feeds, then see the water and scoop amounts for a 1-scoop-per-30-ml mix. This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
100% Local
How to Use the Formula Mixing Calculator
Enter the age in months and the number of feeds per day, and optionally a weight, then press Calculate Amounts. When a weight is given it drives the estimate; otherwise an age-based reference is used.
Reading the result
A weight-based estimate uses about 150 ml of formula per kilogram per day.
Without a weight, an age-based reference daily volume is used instead.
The per-feed amount is the daily volume divided by the number of feeds.
Scoop amounts assume roughly 1 scoop (about 8.5 g) per 30 ml of water.
Features
Weight-based (150 ml/kg/day) or age-based daily estimate
Per-feed water volume and scoop amount
Metric and fluid-ounce output
This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
Scoop sizes and mixing ratios differ between brands. Always measure water first, add powder, and follow the instructions on your tin.