Build age-appropriate baby sleep schedules — naps, bedtimes, wake windows. End the 5am party phase with structure — free, local, informational only.
Calculate infant formula amounts by age and weight with feeding schedules. Get daily ounces and bottle splits right — 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 ideal sleep bedtimes counting back in 90-minute cycles — whole and half-cycle rows (2 to 5 cycles) minus a 15-minute buffer. Wake refreshed at cycle ends, not mid-dream — free, local, no signup.
Convert FLAC audio files to WMA format directly in your browser. Audio never leaves your device — conversion and editing run locally in your browser with FFmpeg WASM. Private and free. for Windows-only workflows.
Add hours and minutes to any time — shift schedules, compute end times, total durations. Add 8h30m to 9:00 for shift end — free, local, no signup.
14–17 hours total with 45–60 minute wake windows. Schedules show naps plus night blocks by month of age.
By weeks of age in the tool: 45–60 min (to 4 weeks), 60–90 min (to 12 weeks), 2–3 hours (to 24 weeks), 3–4 hours beyond. Defaults (2 months) show 15h total, 9h night plus 6h day across 4 naps. Overtired babies fight sleep harder — watch cues, not clocks alone.
Sleep regressions hit around 4, 8, and 18 months with growth and milestones. Schedules flex; consistency matters more than perfection.
No — math runs locally in your browser. Nothing leaves your device.
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.
Sleep Requirements
Get recommended sleep hours based on your age. Follows CDC and National Sleep Foundation guidelines from newborn to senior. Health data never leaves your device — every calculation runs locally in your browser.
Last updated October 2026