Pregnancy & Baby Calculators

Discover a full range of calculators to support your pregnancy journey and early parenting. From estimating your due date and ovulation window to predicting baby gender and tracking child growth, these tools help you plan, monitor, and enjoy every step of this exciting life stage.

Nutrition Needs for Infants Under 1 Year

This calculator estimates the daily nutritional requirements for infants under 12 months of age based on age and current growth indicators. It calculates expected weight and height, as well as daily energy, protein, fat, and carbohydrate needs to support healthy development during the most critical year of life.

Infant Feeding Volume

This calculator helps determine the daily amount of food an infant needs, including recommended feedings per day and a suggested feeding schedule. It takes into account the baby’s age, feeding method (breastfed or formula-fed), and weight to provide personalized guidance for healthy nutrition in the first months of life.

Child Development Tracker

This calculator helps track your child’s growth and development milestones based on age and gender. It estimates expected weight and height, and can also include developmental indicators such as motor skills, speech, and social behavior benchmarks. It’s ideal for parents who want to monitor whether their child is developing within a healthy range.

Chinese Baby Gender

The Chinese Baby Gender Calculator is a centuries-old tool based on the Chinese lunar calendar. By using the mother’s age at conception and the month of conception, it predicts whether you’ll have a boy or a girl. Though not scientifically verified, it’s a popular and fun tradition followed by many.

Calendar of Ovulation and Fertility

This fertility and ovulation calendar helps you determine the most favorable days for conception based on your menstrual cycle. It predicts ovulation dates, fertile windows, and the next menstrual period, allowing you to plan pregnancy and even estimate the baby’s zodiac sign.

Pregnancy Gestational Diabetes Diet

This calculator is designed for pregnant women diagnosed with gestational diabetes. It helps calculate important health metrics such as BMI, Ideal and Adjusted Body Weight, Basal Metabolic Rate (BMR), and recommended daily caloric intake. These values help tailor a healthy pregnancy diet and monitor appropriate weight gain to ensure optimal outcomes for both mother and baby.

Gestational Age Calculator (AOG)

Gestational age, also known as Age of Gestation (AOG), is the number of weeks a pregnancy has progressed since the first day of the last menstrual period (LMP). This calculator estimates how far along you are in your pregnancy by using your LMP and average cycle length. It’s an essential tool for tracking fetal development and expected due dates.

How Many Weeks Pregnant Are You?

This calculator helps you determine how many weeks pregnant you are based on the date of your last menstrual period (LMP). It also estimates your due date and shows how many weeks and days remain until delivery. Pregnancy typically lasts between 37 and 42 weeks, and knowing your current gestational age helps track important milestones.

Crown Rump Length (CRL)

Crown Rump Length (CRL) is the measurement from the top of the fetus’s head (crown) to the bottom of the buttocks (rump), typically taken between 6 to 13 weeks of pregnancy. This calculator estimates fetal length based on gestational age or helps assess gestational age based on CRL.

Weekly Pregnancy Weight Gain

This calculator estimates the recommended weekly weight gain during pregnancy based on your Body Mass Index (BMI) before pregnancy. It helps monitor healthy weight gain depending on your current pregnancy week, height, and pre-pregnancy weight, supporting optimal health for both mother and baby.

Pregnancy Due Date

This calculator helps expectant mothers determine their baby’s due date — also known as the Estimated Date of Delivery (EDD). By entering the first day of your last menstrual period (LMP), you’ll get an accurate estimate of your 40-week pregnancy timeline.

Find Your Due Date

This calculator helps you find your estimated due date based on the first day of your last menstrual period (LMP). It also provides key pregnancy milestones, including estimated conception date, fertility window, and the end of the first and second trimesters. A simple and reliable way to track your pregnancy from day one.

Fertile Days and Ovulation

This fertility calculator helps women determine their most fertile days and ovulation date to increase the chances of pregnancy. By entering the start date of your last menstrual period and average cycle length, it predicts the optimal window for conception and provides a personalized ovulation calendar.

Child Height and Weight

This online calculator helps you estimate your child’s height and weight percentiles based on their age, using standardized growth charts. It’s a useful tool for parents to monitor healthy development and identify potential concerns in physical growth.

Baby Eye Color

Wondering what color eyes your baby might have? This baby eye color calculator uses the genetics of the parents’ eye colors to estimate the most likely outcomes, based on both heterozygous and homogenous inheritance models. It’s a fun and educational tool for expecting parents.

Ultrasound Gestation Period

This calculator estimates the gestational age of a pregnancy based on ultrasound measurements, such as Crown-Rump Length (CRL) or Biparietal Diameter (BPD). Ultrasound-based dating is especially accurate in early pregnancy and helps track fetal development, estimate due dates, and schedule prenatal care.

Safe Days

This safe days calculator helps you identify the infertile period in a woman’s menstrual cycle when the chances of pregnancy are lowest. By entering the date of the last menstrual period, average cycle length, and menstruation duration, it estimates safe days, fertile days, and ovulation. It can be used both for natural birth control and to plan conception.

Date of Conception

Want to know when your baby was conceived? This calculator estimates the date of conception based on the first day of your last menstrual period (LMP) and your average cycle length. It’s a helpful tool for expecting parents who want to understand more about the timeline of their pregnancy.

Child Gender by Blood Renewal

Based on a popular theory, this calculator predicts the gender of a baby by comparing the biological “renewal cycles” of blood in both parents. According to the concept, blood in men renews every 4 years and in women every 3 years. The parent whose blood is “newer” at the time of conception is believed to pass on their gender to the child. While not scientifically proven, this method is widely used as a fun way to guess a baby’s gender.

Child Gender by Parent Blood Type

This calculator predicts the gender of an unborn child based on the blood types of both parents. Although not scientifically guaranteed, this method is based on popular theories and traditions that associate blood compatibility with gender probability. It can be a fun and curious tool for expectant couples.

Child Gender by Rh Factor of Parents

This calculator predicts the possible gender of a child based on the Rh factor (positive or negative) of both parents. Although this method is not scientifically proven, it is based on common folk beliefs that Rh compatibility influences the likelihood of conceiving a boy or a girl. It’s often used for fun or out of curiosity by expectant parents.

Pregnancy & Baby Calculators

Baby Gender

Baby Growth

Fertility

Pregnancy Health

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