- Body Composition Calculator
- Metabolism Calculator
- Nutrition Calculator
- Heart Health Calculator
- Pregnancy Calculator
- Fitness Calculator
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Baby Age in Weeks and Months CalculatorFind your baby's age in weeks, days and whole months from their date of birth. Quick, accurate infant age calculator for any "as of" date.
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Postpartum Weight Loss CalculatorEstimate how many weeks to reach your goal weight after birth using safe loss rates (~0.5 kg/week if breastfeeding). General guidance only.
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Breast Milk Storage Time CalculatorFind out how long freshly pumped breast milk stays safe. Enter the pump time and storage location to get the safe-until date for room, fridge or freezer.
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Pregnancy Water Intake CalculatorEstimate your daily water needs during pregnancy or breastfeeding based on body weight and exercise. Get results in liters, cups and fluid ounces.
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Baby Gender Heart Rate PredictorTry the old wives' tale: enter your baby's fetal heart rate and see if the folk rule predicts a boy or a girl. Just for fun — not medical advice.
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Newborn Weight Loss Percentage CalculatorCalculate your newborn's weight loss percentage from birth weight and current weight. See if it exceeds the 10% pediatric concern threshold.
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Weeks Until Due Date CalculatorFind how many weeks are left until your due date. Enter your due date and today's date to see weeks and days remaining and your approximate gestational age.
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Bishop Score CalculatorCalculate the Bishop Score (0–13) for cervical ripeness from dilation, effacement, station, consistency, and position to assess labor induction success.
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Baby Wake Window CalculatorFind your baby's next nap or bedtime. Enter age and last wake-up time to get an age-appropriate wake window and recommended sleep time.
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Baby & Toddler Sleep Needs CalculatorFind how many hours of sleep your baby or toddler needs by age. Get total daily sleep plus a suggested night-sleep target based on nap hours.
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hCG Doubling Time CalculatorCalculate hCG doubling time, total percent change, and rate of rise per day from two beta hCG blood test results taken hours apart.
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Pregnancy Countdown CalculatorCount down to your due date. Enter your due date and today's date to see exactly how many days and weeks are left until your baby arrives.
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Contraction Timer & Frequency CalculatorCalculate labor contraction frequency and duration from start and end times. Find how far apart contractions are and how long each lasts.
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Baby Height Predictor CalculatorPredict your child's adult height from the parents' heights using the mid-parental height formula. Estimate boys and girls in centimeters instantly.
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Baby Eye Color Predictor CalculatorPredict your baby's eye color probabilities (brown, green, blue) from both parents' eye colors using a simplified Mendelian genetics model.
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Chinese Gender Predictor CalculatorPredict baby boy or girl with the traditional Chinese gender calendar using mother's lunar age and the lunar conception month. For fun only.
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Trimester CalculatorFind out which pregnancy trimester you are in based on your last menstrual period (LMP). Get your gestational week and days until your due date.
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Pre-Pregnancy BMI & Weight Gain CalculatorCalculate your pre-pregnancy BMI and see the recommended total weight gain range for a healthy single pregnancy based on IOM guidelines.
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Pregnancy Week-by-Week CalculatorFind out how many weeks pregnant you are using your last menstrual period (LMP). See your gestational age, trimester, and days until your due date.
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Safe Period (Rhythm) CalculatorEstimate your safe days and fertile window using the rhythm (calendar) method. Find low-fertility days based on your average menstrual cycle length.
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Weeks Pregnant to Due Date CalculatorConvert your current weeks pregnant into an estimated due date. Enter weeks and days to see how much time is left of a 40-week pregnancy.
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How Far Along Am I? Weeks Pregnant from Due DateFind out how many weeks and days pregnant you are from your due date. Enter your due date and today's date to get your gestational age instantly.
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Dog Pregnancy Week CalculatorFind out what week of pregnancy your dog is in. Enter the breeding date and today's date to track gestation stage out of 9 weeks (≈63 days).
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Chicken Egg Incubation & Hatch Date CalculatorCalculate the hatch date for chicken eggs (21 days) and other poultry. Enter the set date and species to get your hatch day and lockdown date.
