Pregnancy & Parenting calculators
Due date, ovulation, pregnancy weeks, baby growth and childcare costs.
20 free tools
Most used
Baby Growth Percentile CalculatorFind your baby’s weight, length and head percentiles on WHO growth chartsBlood 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 Weight Gain CalculatorSee how much weight to gain this week based on your pre-pregnancy BMI
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 Wake Window CalculatorBuild a nap schedule and bedtime from your baby’s age-appropriate wake windowsBreast Milk CalculatorHow much pumped breast milk to put in each bottle — and to leave with careChild 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)Implantation 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 transferPregnancy & Breastfeeding Calorie CalculatorHow many calories you need each trimester and while breastfeeding