FreeCalculatorZone

Pregnancy Calculators

Browse all 12 tools in the pregnancy calculators category. Use these completely free online calculators for accurate and fast results.

Pregnancy Calculator

Estimate due date, pregnancy week, trimester progress, and milestone timing with a free pregnancy calculator.

Pregnancy Due Date Calculator

Free online pregnancy due date calculator with LMP, conception, and ultrasound dating methods.

Pregnancy Sonography Calculator

Free pregnancy sonography calculator for gestational age, fetal weight, growth percentiles, and Doppler assessment.

Body Surface Area Calculator

Free body surface area calculator for medical dosing, cardiac index, and pediatric studies. Supports metric and imperial inputs with multiple validated formulas.

Pregnancy Healthy Weight Calculator

Free pregnancy healthy weight calculator with BMI-based weight gain recommendations for single and multiple pregnancies.

Ovulation Calculator

Free ovulation calculator with fertile window predictions, cycle progress, and next-cycle forecasting.

Pregnancy Conception Calculator

Pregnancy conception calculator for estimating conception date, implantation window, and early pregnancy milestones.

Pregnancy Weight Gain Calculator

Pregnancy weight gain calculator for tracking BMI, healthy gain ranges, and trimester-based progress.

Baby Growth Percentile Calculator

Estimate your infant’s growth against age-based weight and length percentiles with a quick offline-friendly calculator.

Pregnancy Week-by-Week Calculator

Track pregnancy progress with weekly fetal development milestones, trimester status, and due date estimation.

Maternity Leave Calculator

Plan your maternity leave timeline, financial impact, and state benefits with a simple online calculator.

Pregnancy Nutrition Calculator

Personalized pregnancy nutrition planning with calories, macros, vitamins, hydration, and meal guidance.

Pregnancy involves a lot of tracking — due dates, weekly milestones, weight gain targets, nutritional needs, and more. These 12 tools cover the full journey from conception planning through to postpartum. The pregnancy due date calculator estimates your delivery date from your last menstrual period or conception date.

The week-by-week calculator tracks fetal development milestones. The ovulation calculator helps couples planning to conceive identify their fertile window. The pregnancy weight gain calculator checks whether your gain is on track with standard guidelines, while the pregnancy nutrition calculator estimates your increased calorie and nutrient needs by trimester.

Who these tools are for

Expectant mothers, partners tracking pregnancy progress, and couples actively trying to conceive.

Common use cases
  • ·Calculating an estimated due date immediately after a positive pregnancy test.
  • ·Tracking weekly fetal development milestones from conception through to birth.
  • ·Finding the most likely ovulation window to maximize chances of conception each month.