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Pregnancy Calculator

Free pregnancy calculator to estimate conception date. Instant results in your browser — no signup.

Also known as: Estimate conception date, conception calculator, Estimate pregnancy due date, Calculate pregnancy weeks / gestational age, Estimate recommended pregnancy weight gain, Calculate gestational age, estimate conception date calculator, estimate conception date

Direct calculator

Inputs

Results update when you click Estimate.

Estimated due date

Feb 14, 2026

Days changed

30

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Recently used

Tools you open will show up here on this device — with your last inputs when available.

What this result means

Free pregnancy calculator to estimate conception date. Instant results in your browser — no signup. Estimate conception date using due date or LMP. Result: estimated conception date.

Assumptions

  • Rule dependency: Universal formula.

How it works

Estimate conception date using due date or LMP. Result: estimated conception date.

Example

Example: “conception calculator”. Enter your values and click the button to get a result.

Frequently asked questions

What does this conception date calculator do?+

It helps you estimate conception date. Typical search: “conception calculator”.

How should I read the result?+

Estimate conception date using due date or LMP. Result: estimated conception date.