Pregnancy Calculator

Estimate due date, current pregnancy week and trimester from dates.

What the pregnancy calculator shows

• Due date
• Pregnancy week
• Trimester estimate

Formula and assumptions

Results are estimates based on the values you enter. Where useful, Calc Studio shows formulas, steps, tables or breakdowns so you can understand the answer.

Feedback helps improve accuracy and usability. Send suggestions, incorrect-result examples or missing-calculator requests to feedback@calcstudioapp.com.