Observed arrival · 2026-11-14
Fetometria: a fetal assessment calculator
A Spanish-language clinical calculator for gestational age, fetal biometry and estimated weight, Doppler measurements, growth restriction, and first-trimester markers.
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- Clinicians assessing fetal growth and Doppler findings
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- For a prior crown–rump length scan, users can enter its date so gestational age is projected to the current exam.
Field notes
The dating workflow accepts either last menstrual period or crown–rump length and includes an option for an earlier scan, whose date is used to project gestational age to the current exam. Weight estimates draw on INTERGROWTH-21st and Hadlock; the page specifies that entering biparietal diameter changes the Hadlock variant. Combined aneuploidy risk is directed to the official FMF platform rather than calculated on this page.
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