Pregnancy & Baby Calculators
From the moment you start trying to conceive through your baby's first years, these calculators help you track key milestones and make informed decisions. Pregnancy and infant development involve countless changes and benchmarks, and having reliable tools to estimate dates, monitor growth, and plan for expenses makes the journey easier.
For those trying to conceive, the Ovulation Calculator identifies your most fertile days based on your menstrual cycle, increasing your chances of conception. Once pregnant, the Due Date Calculator uses your last menstrual period or conception date to estimate when your baby will arrive, though only about 5% of babies are born on their exact due date.
During pregnancy, healthy weight gain varies by trimester and your pre-pregnancy BMI. The Pregnancy Weight Gain Calculator provides personalized targets based on medical guidelines, helping you stay on track without under or over-gaining. After birth, the Baby Growth Percentile Calculator compares your child's weight, length, and head circumference against WHO growth standards.
These tools complement regular prenatal and pediatric care but don't replace professional medical advice. Use them to prepare questions for healthcare appointments and track development between visits.
All Pregnancy & Baby Calculators
Pregnancy Due Date Calculator
Estimate your delivery date based on your last menstrual period or conception date. Uses Naegele's rule (LMP + 280 days) and provides weekly pregnancy milestones, trimester breakdown, and key developmental stages.
Ovulation Calculator
Predict your fertile window and ovulation day based on your menstrual cycle length. Identifies the 5-6 days each month when conception is most likely, helping couples time intercourse for maximum fertility.
Conception Calculator
Estimate when conception likely occurred based on your due date or current pregnancy week. Helpful for understanding timing of pregnancy and planning ultrasound confirmations.
Baby Growth Percentile Calculator
Compare your baby's weight, length, and head circumference against WHO growth standards. Shows percentile rankings to help track whether development falls within expected ranges for age and gender.
Pregnancy Weight Gain Calculator
Track healthy weight gain during pregnancy based on your pre-pregnancy BMI. Provides trimester-specific targets following ACOG guidelines and alerts you if gain falls outside recommended ranges.
Baby Name Generator
Generate random baby name suggestions filtered by gender, origin, starting letter, and popularity. Browse thousands of names with meanings and origins to find the perfect name for your child.
Child Height Predictor
Estimate your child's adult height based on parental heights using the mid-parental height method. Provides a height range that accounts for genetic and environmental factors.
Breastfeeding Calculator
Determine feeding amounts and schedules based on your baby's age and weight. Provides guidelines for how much breast milk or formula babies need per feeding and per day.
Diaper Cost Calculator
Estimate diaper expenses for your baby's first years based on diaper changes per day and costs per diaper. Helps budget for one of the largest recurring baby expenses and compare brand costs.
Baby Sleep Calculator
Find age-appropriate sleep needs including total daily sleep, number of naps, and nighttime sleep duration. Based on pediatric sleep recommendations from birth through toddlerhood.
Which Calculator Should You Use?
Trying to conceive? The Ovulation Calculator identifies your fertile window. Enter your cycle length to find the days when conception is most likely.
Just found out you're pregnant? Use the Due Date Calculator to estimate your delivery date and current pregnancy week. The Conception Calculator can help pinpoint when conception occurred.
Monitoring pregnancy health? The Pregnancy Weight Gain Calculator ensures you're gaining appropriately for your starting weight and trimester.
Tracking your baby's development? After birth, the Baby Growth Percentile Calculator compares your baby's measurements to growth charts. The Baby Sleep Calculator and Breastfeeding Calculator help establish healthy routines.