OBS Calc -Pregnancy Calculator
Available on Google Play
4.6(2,686)
100,000+ installsFreeMedical
Updated Apr 9, 2025 · v6.6
Quickly calculate Estimated Delivery Date(EDD) and Gestation Age by Date & Scan
A useful tool for quickly calculating estimated delivery date and gestation age using Ultrasound and Last Menstrual Period. Useful for medical students as well as experienced obstetricians for calculating dates accurately and quickly. Manually enter dates for a faster experience.
9 years on Google Play
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Rating breakdown
5★
1,962
4★
516
3★
103
2★
0
1★
103