Pregnancy Due Date Calculator
Estimate your baby due date and track trimesters.
100% In-Browser • Zero Uploads
No Login Required
Pregnancy Calculator
Calculate your due date and key pregnancy milestones.
About Pregnancy Due Date Calculator
Calculate your expected due date from your last period. Follow your pregnancy stages week by week.
100% Client-Side
Your files and data are processed locally in your browser memory. Never uploaded to remote servers.
Zero Login Required
Instant access with no account, no email sign-up, no passwords, and no subscription paywalls.
Instant Speed
Powered by modern WebAssembly and native web APIs for near-instant rendering and zero latency.
Privacy Guaranteed
Zero data retention, no user tracking cookies, and GDPR/HIPAA friendly. Your data remains strictly yours.
All Devices Ready
Fully responsive on desktop, tablet, and mobile devices without installing software or extensions.
How to Use
- Select calculation method (LMP or Conception Date).
- Enter the relevant date.
- Enter your average cycle length if using LMP.
- See your estimated due date and current timeline.