Calculate your pregnancy due date from your last menstrual period (LMP). See your current week, trimester, baby size comparison (fruit analogy), and a timeline of key milestones from first heartbeat to full term.
Enter the first day of your last period to calculate your due date.
Rate this tool · 0.0 avg · 0 ratings
See personalized rates and offers from top providers.
Automated investing tailored to your goals. Start with $1.
Sponsored · We may earn a commission at no cost to you
The due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (LMP), known as Naegele's rule.
Only about 5% of babies are born on their exact due date. Most arrive within two weeks before or after.
First trimester: weeks 1-12. Second trimester: weeks 13-26. Third trimester: weeks 27-40.
Yes, after running your calculation you can copy the results to your clipboard or take a screenshot. The Pregnancy Due Date Calculator displays a detailed breakdown so you can easily record or share your numbers. No account is required to use or save results.
No spam. Unsubscribe anytime.
Calculate your pregnancy due date from your last menstrual period (LMP). See your current week, trimester, baby size comparison (fruit analogy), and a timeline of key milestones from first heartbeat to full term.
NexTool's Pregnancy Due Date Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.
Need deeper analysis? Try AI-powered document review
Analyze tax docs, contracts & statements with Pro — $9/mo
Get notified about new tools, features, and exclusive deals. No spam, ever.