Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Pregnancy
Gestational Age Calculator
Converts the number of days since your last menstrual period into gestational age expressed as weeks and days. Use it at any point in pregnancy to know your exact stage for prenatal care, screenings, and milestone tracking.
Fill in the required fields to see your result.
Pregnancy
Pregnancy Week Calculator
Tells you how many weeks pregnant you are from how many days have passed since your reference date (LMP, conception, or due date), with a cycle-length adjustment in days.
Fill in the required fields to see your result.
Key differences
| Gestational Age Calculator | Pregnancy Week Calculator | |
|---|---|---|
| Category | Pregnancy | Pregnancy |
| Inputs required | 1 | 3 |
| Result | Gestational age (weeks) | Current Pregnancy Week (weeks) |
| What it does | Converts the number of days since your last menstrual period into gestational age expressed as weeks and days. Use it at any point in pregnancy to know your exact stage for prenatal care, screenings, and milestone tracking. | Tells you how many weeks pregnant you are from how many days have passed since your reference date (LMP, conception, or due date), with a cycle-length adjustment in days. |