Fórmula
Add 280 days to the first day of the last menstrual period, adjusted by the difference between the cycle length and 28 days.
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Due Date Calculator
Introduce tus datos para calcular Due Date Calculator de forma transparente y reproducible, con fórmula y alcance visibles.
DisponibleScenario estimateCálculo localUS · USD
Tus datos
Introduce valores reales
✓ Los datos se calculan en esta página y no se suben ni guardan.
Resultado en vivo
Estimated due date
4 de febrero de 2027
This result updates automatically when you change an input.
- Last menstrual period
- 30 de abril de 2026
- Estimated gestational age
- 280 days
- Time remaining
- 178 days
Reproducible, no adivinado
¿Cómo se calculó?
Alcance
Use values that match your situation and location. Verify rule-based, contractual, financial or health decisions against an authoritative local source.
Model context
localees-EScountryUScurrencyUSDtimezoneAmerica/New_Yorkunit_systemimperialrules_versionus-2026.08source_languageen-US
Results are for first-pass estimates and scenario comparison. Important tax, employment, health and investment decisions should be verified against local official guidance or a qualified professional.