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Pregnancy Due Date Calculator

Calculate baby's due date (EDD) from last menstrual period. See current week, trimester, days to go.

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Estimated due date
Friday, 18 December 2026
220 days to go
Progress
Week 8 day 4 • Trimester 1
Conception
27 March 2026
Trimester 1 ends
12 Jun
◆ How it works

Pregnancy Due Date Calculator3 simple steps

01

Enter LMP date

First day of your last menstrual period

02

Cycle length

Average length (default 28 days)

03

See due date

EDD + current pregnancy week

◆ FAQ

Common questions.

How accurate is this?

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When to consult doctor?

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Frequently Asked Questions

20 questions answered · Tap to expand

Questions in English

Open Toolzfy Pregnancy Due Date Calculator, enter the required input values, and see the estimated due date, current pregnancy week, trimester, conception date, and week-by-week milestones instantly. No signup, no email, no installation required. Works in any browser on desktop, Android, iPhone, or tablet. Free forever with no hidden costs or daily limits.

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Frequently Asked Questions

Common questions about Pregnancy Due Date

Use the tool interface to input your data, get instant results. Simple and intuitive design.