Pregnancy & Baby Calculators
Due date calculators, ovulation trackers, growth percentile charts, and everything else expectant and new parents need. Based on standard obstetric formulas and pediatric growth data.
- ✓Conception and due date calculators (including IVF)
- ✓Ovulation and fertile window tracking
- ✓Baby growth percentiles and feeding calculators
- ✓Practical tools: diaper costs, sleep schedules
Most used: Due Date Calculator, Ovulation Calculator, Pregnancy Week Calculator
Try any of the 12 pregnancy & baby calculators below — or get one free for your AI.
Every calculator on this page is free to use right now. You can also download any one as a Claude skill file (free with email) to chat with it in Claude Code, ChatGPT, or any AI platform. Or get the full Pregnancy & Baby Pack for $29.
Common workflows in this category
Click any scenario to jump into the calculator with the example pre-loaded.
12 free calculators
Baby Growth Percentile Calculator
Track your baby's weight and length against growth charts. See what percentile your baby falls into and understand normal growth.
Baby Name Analyzer
Explore baby name meanings, sounds, and compatibility with your last name. Find the perfect name for your baby.
Baby Sleep Calculator
Calculate total daily sleep needs by age. Understand nap schedules and how sleep should be distributed throughout the day.
Breastmilk Calculator
Calculate daily breastmilk requirements by age. Understand feeding frequency, ounces per feeding, and daily totals.
Chinese Gender Predictor
Use the traditional Chinese lunar calendar to predict baby's gender. See what the ancient chart suggests about your baby.
Conception Date Calculator
Calculate when conception likely occurred based on your due date or LMP. Reverse-engineer your baby's conception date instantly.
Contraction Timer
Time your contractions and determine if you're in active labor. Track frequency, duration, and intensity to guide hospital decisions.
Diaper Cost Calculator
Calculate first-year diaper costs. Compare disposable vs. cloth diaper expenses and total budget needed.
Due Date Calculator
Calculate your baby's due date from LMP or conception date using Naegele's Rule. Accurate, instant, and trusted by expecting parents.
IVF Due Date Calculator
Calculate your due date based on IVF embryo transfer date. Day 3 and day 5 transfers use different calculations.
Ovulation Calculator
Track your ovulation and fertile window with our easy ovulation calculator. Know your most fertile days for family planning.
Pregnancy Week Calculator
Calculate how many weeks and days pregnant you are, plus your current trimester. Simple, instant pregnancy timeline calculator.