Calculators/Pregnancy and baby
Parent planning

Pregnancy Due Date Calculator

Estimate pregnancy due date from last menstrual period or conception date. Use this Pregnancy and baby tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
FAQ
Related tools

Calculator tool

Pregnancy estimate
Pregnancy Due Date Calculator
days

Estimated due date

Result

2026-10-08

Method

Last menstrual period

Pregnancy length used

280 days

Cycle adjustment

0 days

This is an estimate only. Confirm pregnancy dating with a qualified healthcare professional.

Medical dates should be confirmed by a clinician.
How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

The estimate uses a standard pregnancy duration assumption and should not replace medical guidance.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

Is the due date exact?

No. Due dates are estimates and actual delivery dates can vary.

Should users confirm with a doctor?

Yes. Pregnancy dates should be confirmed by qualified healthcare professionals.