Gestational Age Calculator

Free gestational age calculator for gestational age calculator. Enter the values below to get an instant result.

JavaScript is required for live calculation.

You can still read how Gestational Age Calculator works, the formula, examples, and FAQs below.

Start / birth date
End date

Inputs

Start / birth date

End date

Results update when you click Calculate.

Days between

12998

Years

35.59

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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 gestational age calculator for gestational age calculator. Enter the values below to get an instant result. Calculate gestational age using LMP or ultrasound date. Result: weeks and days pregnant.

Assumptions

Rule dependency: Clinical convention.

How it works

Calculate gestational age using LMP or ultrasound date. Result: weeks and days pregnant.

Example

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

Frequently asked questions

What does this gestational age calculator do?+

It helps you calculate gestational age. Typical search: “gestational age calculator”.

How should I read the result?+

Calculate gestational age using LMP or ultrasound date. Result: weeks and days pregnant.