Baby Formula Calculator
Calculate infant formula amounts by age and weight with feeding schedules. Get daily ounces and bottle splits right — free, local, informational only.
How to Use the Baby Formula Calculator
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Frequently Asked Questions
How much formula per day?
Weight-based bands in mL per kg daily: 150 (under 2 weeks), 135 (to 3 months), 120 (to 6 months), 100 (to 12 months), 90 beyond. Defaults (3 months, 6 kg, 8 feeds) give 810 mL/day (27.4 oz), about 101 mL (3.4 oz) per bottle.
How often to feed?
Every 2–3 hours newborns, stretching as stomachs grow. Hunger cues beat clocks — crying, rooting, and hands-to-mouth signal first.
Should feeding follow this alone?
No — informational estimates only. Pediatricians set feeding plans, especially for preemies and low-weight infants.
Is baby data uploaded?
No — math runs locally in your browser. Nothing leaves your device.
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Last updated October 2026