Health
Pregnancy Due Date Calculator
🔒 Runs in your browser
Calculate your estimated due date using Naegele's rule (LMP + 280 days). See your current trimester, days remaining, and key milestone dates. Free, instant, private.
Uses Naegele's rule: due date = LMP + 280 days (40 weeks)
How to Calculate Your Pregnancy Due Date (2026)
How to Calculate Your Pregnancy Due Date — free online tool and guide with examples.