About Babymetric

Babymetric collects the calculators that expecting and new parents search for most often. Every calculation is based on established medical or statistical formulas, and your inputs are processed entirely in your browser — they are never transmitted anywhere.

Available calculators

  • Due date calculator — Naegele's rule
  • Conception date calculator — three-way back-calculation from LMP, EDD, or weeks
  • IVF due date calculator — SART/ASRM standard (transfer + 261/262/263 days)
  • Pregnancy weeks calculator — based on LMP or EDD
  • Ovulation & fertile window calculator — 14-day luteal phase
  • Infant growth percentile calculator — WHO 2006 LMS
  • Pregnancy weight gain tracker — IOM 2009 guidelines
  • Pregnancy weight gain calculator — IOM/NAM ranges by pre-pregnancy BMI
  • Fetal weight estimator — Hadlock-4 formula
  • Breast milk storage calculator — CDC guidelines
  • Pregnancy test timing calculator — based on Wilcox 1999
  • Implantation calculator — Wilcox 1999, 6–12 days post-ovulation
  • Emergency contraception timing — time remaining for each option after unprotected sex
  • Kick counter — Cardiff / ACOG 2-hours-10-kicks guidance
  • βhCG Doubling Time Calculator — early pregnancy hCG rise
  • Baby formula calculator — daily and per-feed amounts by age
  • Solid foods timeline — 4-stage weaning schedule with foods, textures, and allergen introduction (KR/JP/Global)
  • Pregnancy guide by stage — milestones, symptoms, checkups, and cautions across weeks, months, and trimesters
  • Contraction timer — ACOG 5-1-1 rule indicator
  • Apgar score calculator — 5-component newborn vitality at 1, 5, and 10 minutes
  • Baby sleep calculator — recommended sleep, naps and wake windows by age
  • Teething schedule calculator — AAPD eruption chart for all 20 baby teeth
  • Wake Window calculator — next nap timing based on age‑specific wake windows
  • Baby eye color predictor — odds of brown, hazel, green, or blue from both parents (for fun)
  • Pregnancy topics — early symptoms, implantation bleeding, nausea, foods, movement, tests, complications

Operating principles

  • For reference only. All calculators provide estimates based on general medical formulas and standards. They are not a diagnosis or medical advice — always consult an obstetrician or pediatrician for medical decisions.
  • We don't collect personal information. Everything you enter into our calculators is processed only inside your browser. Nothing is transmitted to any server or stored anywhere.