Pregnancy & Parenting calculators
Due date, ovulation, pregnancy weeks, baby growth and childcare costs.
36 free tools
Most used
Apgar Score CalculatorAdd up a newborn’s Apgar score and see what the number meansBaby Age CalculatorSee exactly how old your baby is in weeks, months and daysBaby Growth Percentile CalculatorFind your baby’s weight, length and head percentiles on WHO growth chartsBaby Size by WeekSee how long and heavy your baby is this week, with a fruit-size comparisonBlood Type CalculatorPredict a baby’s possible blood types and Rh factor from both parentsChild Height PredictorEstimate your child’s adult height from parents’ heights and early growthConception CalculatorWork backwards from your due date or last period to find when you conceivedDue Date CalculatorFind your due date from your last period, conception, IVF or ultrasoundhCG Doubling Time CalculatorCalculate how fast your beta hCG is rising between two blood testsOvulation CalculatorPredict ovulation and your most fertile days for the next six cyclesPregnancy Week CalculatorSee how many weeks pregnant you are, your trimester and what comes nextPregnancy Weeks to Months ConverterConvert weeks pregnant to months and trimester, or months back to weeksPregnancy Weight Gain CalculatorSee how much weight to gain this week based on your pre-pregnancy BMIWhen to Take a Pregnancy Test CalculatorFind the earliest and most accurate day to take a home pregnancy test
More pregnancy & parenting tools
Adjusted Age CalculatorFind a premature baby’s corrected age for milestones and growth chartsBaby Eye Color CalculatorPredict the odds of brown, green or blue eyes from parents and grandparentsBaby Formula CalculatorHow many ounces of formula your baby needs per day and per bottleBaby Kick CounterTap for every movement and see how long your baby takes to reach 10Baby Milestones CheckerSee the CDC milestones most babies reach by your child’s ageBaby Sleep Needs CalculatorSee how much sleep your baby or child needs, with naps and a bedtimeBaby Wake Window CalculatorBuild a nap schedule and bedtime from your baby’s age-appropriate wake windowsBasal Body Temperature ChartChart your daily BBT and spot the temperature shift that confirms ovulationBreast Milk CalculatorHow much pumped breast milk to put in each bottle — and to leave with careBreastfeeding TimerTime each breast, remember which side is next and see when the next feed is dueCar Seat Stage CalculatorFind the right car seat stage from your child’s age, weight and heightChild BMI Percentile CalculatorBMI-for-age percentile for kids and teens 2–19 using CDC growth chartsChildcare Cost CalculatorMonthly and yearly cost of daycare, a nanny or after-school careContraction TimerTap to time contractions, see frequency and know when to go (5-1-1)Diaper Cost CalculatorSee how many diapers you’ll need and what they cost, cloth vs disposableImplantation CalculatorFind your likely implantation window and the best day to take a testIVF Due Date CalculatorYour due date and pregnancy week from a 3-day or 5-day embryo transferNewborn Weight Loss CalculatorSee what percent of birth weight your baby has lost and whether it is typicalBaby Teething ChartSee which baby teeth usually erupt by your child’s age, and what comes nextCRL Gestational Age CalculatorConvert a crown-rump length into weeks, days and an ultrasound due dateEstimated Fetal Weight CalculatorTurn ultrasound BPD, HC, AC and FL into an estimated weight and percentilePregnancy & Breastfeeding Calorie CalculatorHow many calories you need each trimester and while breastfeeding