Gestational Age Calculator
Weeks and days pregnant on any date.
Your result
Gestational age counts from the first day of the last menstrual period, about two weeks before conception.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Learn more
Gestational Age vs Fetal Age
Why you are "four weeks pregnant" at conception plus two weeks.
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Timing intercourse in the six days before and on ovulation boosts chances.
Frequently asked questions
What does the Gestational Age Calculator do?
Weeks and days pregnant on any date. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: how far along am i; weeks pregnant today; pregnancy week calculator.