Pregnancy & Parenting Tools
Everything from due date to college fund.
Free calculators for expecting and new parents — due date, baby cost, diaper budget, child growth, pediatric dosing, and college savings target. Every tool runs 100% in your browser; nothing you enter is sent to a server, and there is no signup.
Core parenting calculators
Due Date Calculator
Estimated due date from your last menstrual period (LMP) using Naegele's rule.
First-Year Baby Cost Estimator
Comprehensive first-12-month baby budget: diapers, formula, gear, childcare, medical.
Diaper Cost Calculator
Total diaper spend over 2-3 years — by brand price, usage rate, and switch-to-underwear age.
College Savings Target Calculator
Monthly 529 contribution needed to fund college 18 years from now.
Baby Age Calculator
Exact age of your child in years, months, weeks, and days — for milestone tracking.
Family Size Cost Comparison
Compare estimated 18-year cost of raising 1, 2, or 3 children.
More parenting calculators from our registry
Due Date from Conception
Due date from an estimated conception date (not LMP).
Pregnancy Weight Gain
Recommended weight gain by BMI category and trimester.
Ovulation Calculator
Fertile-window prediction from cycle length + last period.
Baby Feeding Schedule
Recommended feeds and volume per day by age.
Cost of Raising a Child
USDA-inspired 18-year total cost with regional adjustment.
Child Growth Percentile
WHO/CDC height + weight percentile by age and sex.
Pediatric Dose Calculator
Weight-based medication dose (mg/kg). Verify with pediatrician.
Apgar Score
Standard newborn 1-minute + 5-minute Apgar assessment.
Which calculator do you need?
If you just took a positive test and want a due date, start with Due Date. If you know your conception date rather than your last period, use Due from Conception instead — both give the same window, just measured from different anchor points. If you are tracking a pregnancy, Pregnancy Weight Gain shows the recommended weight-gain range for your BMI category and trimester; providers use the same ranges from the Institute of Medicine.
Budgeting for a baby
The First-Year Cost Estimator is the honest one-look number most first-time parents want — most people underestimate it by about 40%. The single biggest variable is childcare: full-time daycare in a major US city runs $18,000-$30,000 per year, dwarfing gear, formula, and diapers combined. If a parent will stay home, that whole line-item drops to $0. The Diaper Cost calculator projects the ~5,500-diaper lifetime spend from newborn through potty-training; if you are considering cloth, subtract ~40-60% for wash utilities. For the longer horizon, College Savings Target tells you the monthly 529 contribution needed to fund a 4-year public or private education by the time your newborn enrolls at 18.
Growth & health references
Child Growth Percentile uses the WHO growth standards for ages 0-2 and CDC growth charts for ages 2-20 — the same reference curves pediatricians use at wellness visits. Pediatric Dose computes the weight-based dose for common medications; always verify with your pediatrician before administering, because per-medication mg/kg ranges vary and some drugs have upper caps. Apgar Score is the standard 5-metric newborn assessment (appearance, pulse, grimace, activity, respiration) — normally scored by the delivery team, but useful to understand what the numbers on your baby's chart mean.
Not medical advice
These calculators compute standard formulas — Naegele's rule for due date, WHO/CDC growth curves, USDA cost-of-raising-a-child estimates, and standard finance math for college savings. They do not diagnose, predict individual outcomes, or replace medical judgment. Pregnancy, dosing, and growth are all patient-specific — always consult your OB, pediatrician, or midwife for clinical decisions. Cost estimates are US-focused defaults; adjust for your locality.
More free tools on ScoutMyTool
Other free tool clusters worth a look — all browser-based, no signup, no ads on your workflow.