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Pregnancy Calculator – Tracks pregnancy progress in weeks and estimate...

The Pregnancy Calculator tracks pregnancy progress in weeks and estimates the due date and trimester. This Pregnancy Calculator uses an established clinical or fitness formula to give you a personalised estimate in seconds. Results are for educational reference — for specific health decisions, discuss with your doctor.

The formula behind this calculator: Counts weeks elapsed since the last menstrual period against a full 40-week term. As a practical example: At 20 weeks along, a pregnancy is at the midpoint, just into the second trimester's later half. All results are calculated instantly in your browser — no data is stored or transmitted.

Pregnancy Calculator FAQ

What does the Pregnancy Calculator calculate?

Tracks pregnancy progress in weeks and estimates the due date and trimester.

Is this a substitute for medical advice?

No. These calculators provide general estimates for educational purposes only. Always consult a doctor or qualified health professional for medical decisions.

Should I use metric or imperial units?

Either — the calculator accepts both. Metric values (kg, cm) tend to have simpler conversion paths in the underlying formulas.

Is my data sent to a server?

No — calculations run directly in your browser. Your inputs are not stored or transmitted.