Free, easy-to-use calculators to help you through pregnancy and early parenthood. All helpers are for educational purposes only.
Reference guide for prenatal checkup schedule, recommended tests, and screening timelines during…
Track your baby's movements and kicks during pregnancy. Monitor fetal activity patterns…
Calculate recommended weight gain during pregnancy based on your pre-pregnancy BMI following…
Calculate your estimated due date based on your last menstrual period (LMP)…
Calculate how many weeks and days pregnant you are based on your…
Reference guide for recommended childhood vaccination schedule from birth to 6 years…
Calculate recommended feeding amounts and schedules for infants based on age, weight,…
Reference guide for recommended sleep duration and nap schedules by age from…
Calculate your child's growth percentiles for height, weight, and head circumference using…
Calculate BMI-for-age percentile and Z-score for children aged 2-20 years with educational…
Pregnancy and early parenthood are filled with questions and milestones. Our comprehensive suite of free pregnancy calculators and baby development tools helps expectant parents and new families track important dates, monitor growth patterns, and understand developmental milestones.
Our pregnancy calculators are designed to support you throughout your journey to parenthood. The due date calculator helps you estimate when your baby will arrive based on your last menstrual period or conception date. The gestational age calculator tracks how far along you are in your pregnancy, while the pregnancy week calculator provides detailed information about your baby's development week by week.
After your baby arrives, our pediatric calculators help you monitor their healthy growth and development. The growth percentile calculator compares your child's height, weight, and head circumference to standard growth charts from WHO and CDC. The child BMI calculator helps assess healthy weight ranges for children and teens. These tools provide valuable insights but should always be discussed with your pediatrician.
All our calculators are based on medical guidelines and research from trusted organizations including the World Health Organization (WHO), Centers for Disease Control and Prevention (CDC), American College of Obstetricians and Gynecologists (ACOG), and American Academy of Pediatrics (AAP). We regularly update our calculators to reflect the latest medical standards and recommendations.
Each calculator is designed to be simple and intuitive. Simply enter the requested information such as dates, measurements, or ages, and receive instant results with detailed explanations. Most calculators include visual charts, interpretations, and next steps. Remember that these tools are for educational purposes only and do not replace professional medical advice from your healthcare provider.
Expert advice, tips, and information for pregnancy, parenting, and baby care
Pregnancy calculators provide estimates based on standard formulas and medical guidelines. Due date calculators are typically accurate within 1-2 weeks, as only about 5% of babies arrive on their exact due date. For the most accurate assessment, combine calculator results with ultrasound measurements and regular prenatal checkups with your healthcare provider.
Use baby growth calculators at regular intervals (usually at well-child visits) to track your baby's growth patterns over time. The growth percentile calculator is most useful when tracking trends rather than single measurements. Consistent growth along any percentile line is generally healthy, even if your child is in a lower or higher percentile.
No account or signup is required. All calculators are completely free to use and accessible immediately. Your privacy is important to us - we do not store or share any personal information you enter into our calculators.
If any calculator results concern you, contact your healthcare provider right away. Our calculators are educational tools and cannot replace professional medical evaluation. Your doctor or midwife can interpret results in the context of your complete health history and provide personalized guidance.