Calculate infant formula amounts by age and weight with feeding schedules. Get daily ounces and bottle splits right — free, local, informational only.
Build age-appropriate baby sleep schedules — naps, bedtimes, wake windows. End the 5am party phase with structure — free, local, informational only.
Estimate calories burned making breast milk by baby age and feeding frequency, at ~0.67 kcal per mL. Fuel milk production without guessing — free, local, informational only.
Compute body surface area with four formulas (Mosteller, Du Bois, Haycock, Gehan & George) for medication dosing and physiology. Get m² from height and weight — free, local, informational only.
Splits a loan principal into equal monthly installments using the standard reducing-balance formula with configurable annual interest and tenure. Figures never leave your device — every calculation runs locally in your browser.
Calculate exact age in years, months, and days from day-month-year dropdowns with a target date. Includes eligibility check for Indian government age requirements.
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.
Every 2–3 hours newborns, stretching as stomachs grow. Hunger cues beat clocks — crying, rooting, and hands-to-mouth signal first.
No — informational estimates only. Pediatricians set feeding plans, especially for preemies and low-weight infants.
No — math runs locally in your browser. Nothing leaves your device.
Baby Sleep Schedule Calculator
Build age-appropriate baby sleep schedules — naps, bedtimes, wake windows. End the 5am party phase with structure — free, local, informational only.
Baby Growth Percentile Calculator
Compare baby weight and height against WHO median references by age and sex, shown as % above or below the median — a reference comparison, not clinical percentiles. Monitor your childs growth compared to population medians. Health data never leaves your device — every calculation runs locally in your browser.
Last updated October 2026