Pregnancy Calculators
Browse our comprehensive collection of pregnancy calculators for due dates, gestational age, baby growth, ovulation, fertility, pregnancy health, labor, postpartum, and more. Free online tools for expecting parents, healthcare professionals, and family planning.
Due Date Calculator (LMP)
Calculate estimated due date from last menstrual period (Naegle's rule) with week-by-week tracking.
duedateConception Date Finder
Estimate conception date from due date or LMP with detailed explanation.
duedateGestational Age Calculator
Calculate current gestational age in weeks and days from LMP or ultrasound dating.
duedateIVF Due Date Calculator
Calculate due date for IVF pregnancies based on embryo transfer date and stage.
duedateDue Date from Ultrasound
Calculate due date using first-trimester crown-rump length (CRL) ultrasound measurements.
duedateDue Date from Conception Date
Calculate due date when conception date is known (add 266 days).
duedateFrozen Embryo Transfer (FET) Due Date
Calculate due date for FET pregnancies based on transfer date and embryo stage.
duedateDonor Egg/Sperm Due Date
Calculate due date when using donor eggs or sperm with known cycle dates.
duedatePregnancy Week Calculator
Determine current week, trimester, and days until due date with detailed weekly breakdown.
trackerTrimester Calculator
Find which trimester you are in and track trimester transitions.
trackerPregnancy Milestone Tracker
Track key milestones like quickening, viability, and full term with dates.
trackerCountdown to Due Date
Count down days, hours, minutes, and seconds to your due date.
trackerPregnancy Calendar Generator
Generate a personalized pregnancy calendar with week-by-week updates and appointments.
trackerWeek-by-Week Development Summary
Get a weekly summary of baby development and maternal changes for any week.
trackerExpected Date of Delivery (EDD) Countdown
Countdown with progress bar and percentage complete to due date.
trackerPregnancy Checkup Schedule Planner
Plan prenatal checkup dates based on gestational age and guidelines.
trackerFetal Growth Percentile Estimator
Estimate baby's growth percentile from ultrasound measurements (BPD, HC, AC, FL).
babygrowthEstimated Fetal Weight (EFW) Calculator
Calculate estimated fetal weight using Hadlock or other formulas from ultrasound parameters.
babygrowthBaby Size Comparison
Compare baby's size to fruits, vegetables, or common objects week by week.
babygrowthGrowth Chart (WHO/CDC) Tracker
Plot fetal growth on WHO or CDC growth charts based on gestational age.
babygrowthMultiple Pregnancy Growth
Calculate growth percentiles for twins, triplets, and multiples.
babygrowthFetal Movement Kick Counter
Track fetal movements and kick counts for fetal well-being assessment.
babygrowthBaby Birth Weight Predictor
Predict baby's birth weight based on ultrasound measurements and maternal factors.
babygrowthAmniotic Fluid Index (AFI) Evaluator
Interpret AFI measurements and assess amniotic fluid levels.
babygrowthOvulation Calculator
Predict ovulation dates and fertile window based on menstrual cycle length and LMP.
fertilityFertile Window Calculator
Calculate your most fertile days each cycle for optimal conception timing.
fertilityConception Probability Estimator
Estimate the likelihood of conception in a given cycle based on timing and age.
fertilityPregnancy Test Date Calculator
Determine the earliest date to take a pregnancy test for reliable results.
fertilityBasal Body Temperature (BBT) Analyzer
Interpret BBT chart to confirm ovulation and detect patterns.
fertilityCervical Mucus Checker
Track cervical mucus changes to predict ovulation and fertile days.
fertilityFertility Awareness Method (FAM) Planner
Plan natural family planning using BBT, cervical mucus, and calendar methods.
fertilityImplantation Bleeding Checker
Assess if symptoms indicate implantation bleeding or early pregnancy.
fertilityPregnancy Weight Gain Calculator
Track healthy weight gain during pregnancy based on pre-pregnancy BMI and trimester.
healthPregnancy Due Date & Week Gestational Health Check
Check typical symptoms and health tips for each week of pregnancy.
healthPregnancy Calorie & Nutrition Needs
Calculate extra calorie and nutrient needs during pregnancy and breastfeeding.
healthGestational Diabetes Risk Check
Assess risk factors for gestational diabetes based on health and family history.
healthPreeclampsia Risk Assessment
Evaluate risk of preeclampsia based on blood pressure, symptoms, and risk factors.
healthMorning Sickness Symptom Tracker
Log and track nausea, vomiting, and other first-trimester symptoms.
healthFetal Heart Rate (FHR) Interpretation
Interpret fetal heart rate patterns and normal ranges by gestational age.
healthAnemia in Pregnancy Check
Assess risk of anemia from hemoglobin levels and iron intake.
healthLabor & Delivery Date Predictor
Estimate likely labor start date based on due date and statistical distribution.
laborContraction Timer
Time contractions and track frequency, duration, and intensity for labor monitoring.
laborBishop Score Calculator
Calculate Bishop score to assess cervical readiness for induction.
laborEstimated Delivery Weight (EDW) Predictor
Predict baby's weight at delivery based on growth trajectory.
laborInduction Success Estimator
Estimate likelihood of successful induction based on Bishop score and factors.
laborBirth Plan Checklist
Generate a personalized birth plan checklist based on preferences and medical history.
laborLabor Stage Progress Tracker
Track progression through first, second, and third stages of labor.
laborDue Date Probability Distribution
Show probability of delivery on any date around due date (statistical distribution).
laborPostpartum Recovery Timeline
Track physical and emotional recovery milestones after delivery.
postpartumBreastfeeding Calorie & Fluid Needs
Calculate extra calorie and fluid requirements during breastfeeding.
postpartumNewborn Feeding Schedule Planner
Plan feeding times for newborns (breastfeeding, formula, or mixed).
postpartumPostpartum Depression (PPD) Risk Check
Assess risk factors for postpartum depression and identify warning signs.
postpartumMaternal Weight Loss After Delivery
Track healthy postpartum weight loss with personalized goals.
postpartumPelvic Floor Exercise Planner
Plan pelvic floor exercises (Kegel) for postpartum recovery.
postpartumBaby Sleep & Wake Window Tracker
Track newborn sleep patterns and wake windows for better routines.
postpartumReturn to Work Planning (Maternity Leave)
Plan return to work timeline and childcare arrangements.
postpartumNIPT (Non-Invasive Prenatal Testing) Result Interpreter
Interpret NIPT results for trisomies and sex chromosomes.
testingQuad Screen / AFP Test Interpreter
Interpret quad screen and alpha-fetoprotein test results for neural tube defects and trisomies.
testingGestational Diabetes (OGTT) Result Check
Interpret 1-hour and 3-hour oral glucose tolerance test results for GDM.
testingRh Factor & Antibody Screening
Understand Rh factor compatibility and antibody screening results.
testingChorionic Villus Sampling (CVS) Result
Interpret CVS results for chromosomal abnormalities.
testingAmniocentesis Result Interpreter
Interpret amniocentesis results for genetic disorders and karyotype.
testingCarrier Screening (Genetic) Assessment
Assess carrier risk for common autosomal recessive disorders.
testingUltrasound Biometry & Dating
Calculate gestational age and due date from fetal biometry measurements.
testingWhat Are Pregnancy Calculators?
Our Pregnancy Calculators collection provides a comprehensive suite of tools for expecting parents, healthcare professionals, and anyone planning a family. From tracking due dates and fetal development to monitoring health and preparing for labor, these calculators deliver accurate, personalized insights with clear explanations.
From due date estimation and fetal growth tracking to fertility planning, pregnancy health monitoring, labor preparation, and postpartum recovery, our tools cover every stage of the journey to parenthood.
How to Use This Directory
- Search: Type a keyword into the search bar to find specific calculators by name or description.
- Filter by Category: Use the dropdown to narrow down to a specific pregnancy topic — each option shows the number of tools available.
- Click to Use: Each card links directly to the tool. Click on any card to start your pregnancy calculation instantly.
- Explore Category Pages: Use the "Explore More Health & Wellness Calculators" section to access dedicated pages for other health topics.
Why Use Our Pregnancy Calculators?
- Comprehensive Coverage: Covers due dates, gestational age, baby growth, fertility, health, labor, postpartum, and prenatal testing.
- Accurate & Reliable: Uses evidence-based medical guidelines and formulas.
- Free & Accessible: No registration, no fees — use any tool instantly on any device.
- Educational: Many tools explain the science and reasoning behind the results.
- Personal & Clinical: Designed for expecting parents, doulas, midwives, and healthcare providers.
❓ Pregnancy Calculators FAQ
What types of pregnancy calculations can I perform?
You can calculate due dates, gestational age, fetal growth percentiles, estimated fetal weight, ovulation dates, fertile windows, pregnancy weight gain, calorie needs, labor timing, postpartum recovery milestones, and interpret prenatal test results.
How do I calculate my due date?
Use our Due Date Calculator (LMP). Enter the first day of your last menstrual period, and the tool will compute your estimated due date using Naegele's rule (LMP + 280 days).
How do I calculate gestational age?
Use our Gestational Age Calculator. Enter your LMP or due date, and the tool will calculate current gestational age in weeks and days.
How do I predict my ovulation date?
Use our Ovulation Calculator. Enter your cycle length and LMP to predict ovulation and fertile window based on the standard 14-day luteal phase.
How do I track baby growth?
Use our Fetal Growth Percentile Estimator or Estimated Fetal Weight Calculator. Enter ultrasound measurements to assess growth against standards.
How do I calculate healthy pregnancy weight gain?
Use our Pregnancy Weight Gain Calculator. Enter your pre-pregnancy BMI and current week to get recommended weight gain ranges.
How do I use the contraction timer?
Use our Contraction Timer to record contraction start times, durations, and intervals to monitor labor progress.
Are these calculators suitable for medical use?
Our calculators are based on evidence-based guidelines and are used by healthcare professionals, but they are educational tools. Always consult your healthcare provider for clinical decisions.
How often are new pregnancy calculators added?
We regularly add new tools based on user requests and advances in obstetrics. If you have a suggestion, please contact us.
Can I use these calculators for family planning?
Yes, our fertility and ovulation calculators are designed to support family planning, natural conception, and fertility awareness methods.