Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness calculator
Result
Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness calculator that helps you calculate date differences, days between dates, or future/past dates. The formula used is: GA (days) = 8.052 × √CRL + 23.73 (Robinson-Fleming, CRL — free online calculator.
Formula
- Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness calculator calculates its result from Ultrasound date, Gestational age at scan (weeks). It uses the formula Estimated due date = scan date + (280 − 7 × gestational weeks) days.. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Ultrasound date, Gestational age at scan. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness
- Ultrasound date: 2026-03-01
- Gestational age at scan: 12 weeks
Using Ultrasound date = 2026-03-01, Gestational age at scan (weeks) = 12, the calculated result is 2026-09-13.
Sample result: Calculating…
Frequently asked questions
What does the Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness calculate?
Due Date by Ultrasound (CRL) Due Date by Ultrasound (CRL) is a health and wellness calculator that helps you calculate date differences, days between dates, or future/past dates. The formula used is: GA (days) = 8.052 × √CRL + 23.73 (Robinson-Fleming, CRL — free online calculator.
Which values should I enter?
Enter Ultrasound date, Gestational age at scan using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Estimated due date = scan date + (280 − 7 × gestational weeks) days..
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.