Pregnancy Calculator

• Free online pregnancy calculator — works right in your browser, no installation needed
• Quickly calculates the due date, current gestational age, pregnancy days, days until due, pregnancy trimester and fetal development stage from your last menstrual period and cycle length
• Automatically works out the baby's zodiac sign and Chinese zodiac, and generates a schedule of important prenatal checkups, with one-click copy of the results

1. Open the tool page — no download or installation required
2. In "Calculation Settings", pick the "First day of last menstrual period" and enter the "Menstrual cycle length (days)" (28 days by default)
3. Results update automatically in real time — no button needed. View the due date, gestational age, pregnancy days, trimester, fetal development stage, baby's zodiac sign and Chinese zodiac at a glance
4. Scroll down to see the "Prenatal Checkup Schedule", and click "Copy" to copy all the results at once

• This tool is completely free and requires no registration or login
• All calculations happen locally in your browser — your data is never uploaded
• Calculations are based on the last menstrual period and are only estimates for reference; always rely on your doctor's diagnosis

Free online pregnancy calculator. Quickly calculate your due date, current gestational age, pregnancy days, baby zodiac and Chinese zodiac, and important prenatal checkup schedule based on your last menstrual period and cycle length.

Open the tool page — no download or installation required In "Calculation Settings", pick the "First day of last menstrual period" and enter the "Menstrual cycle length (days)" (28 days by default) Results update automatically in real time — no button needed. View the due date, gestational age, pregnancy days, trimester, fetal development stage, baby's zodiac sign and Chinese zodiac at a glance Scroll down to see the "Prenatal Checkup Schedule", and click "Copy" to copy all the results at once

This tool is completely free and requires no registration or login All calculations happen locally in your browser — your data is never uploaded Calculations are based on the last menstrual period and are only estimates for reference; always rely on your doctor's diagnosis

Yes, Pregnancy Calculator is completely free. No download or installation required — it runs right in your browser.