Pregnancy Calculator
Calculate your estimated due date (EDD) and track trimester milestones.
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About this tool
About Pregnancy Calculator
Pregnancy Calculator is a free, browser-based tool that lets you calculate your estimated due date (EDD) and track trimester milestones. It supports Date → Date. Everything runs locally on your device, so your files are never uploaded to a server. There's no sign-up, no watermark, and no limit — just open Pregnancy Calculator, add your input, and get results instantly.
How to use Pregnancy Calculator
1
Enter LMP date
Select the first day of your last menstrual period.
2
Set cycle length
Adjust your average cycle length if different from 28 days.
3
View milestones
See your estimated due date and trimester timeline.
Key features
Due Date Estimation
Quickly find your estimated date of delivery (EDD).
Trimester Timeline
Get a breakdown of when your first, second, and third trimesters begin and end.
100% Private
Pregnancy Calculator processes your data locally in the browser. Nothing is uploaded, tracked, or stored — your files never leave your device.
Completely Free
Use Pregnancy Calculator as much as you want with no fees, no watermarks, and no hidden limits.
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