Post Term Date Calculator
Find how many days remain until 40 weeks and 42 weeks of pregnancy from your current gestation.
Compare Your Options And Get Clear Answers
Find how many days remain until 40 weeks and 42 weeks of pregnancy from your current gestation.
Post Term Date Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Post Quick Guide
Typical values for reference.
| Week | Term | Days | Note |
|---|---|---|---|
| 37 to 38 | Early term | 259 to 266 | Early |
| 39 to 40 | Full term | 273 to 280 | Due |
| 42+ | Post term | 294+ | Monitor |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Post Term Date Calculator FAQ
Answers to common questions about this calculator.
A pregnancy lasting 42 weeks or more.
It gives a quick estimate of post term date from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.