Bishop Score Calculator
An authoritative Bishop Score Calculator for assessing the readiness of the cervix for labor. Developed by Ugo Candido.
Cervical findings
Select the current values for dilation, effacement, station, consistency, and position. The Bishop Score is the sum of these five components.
Choose every component to reveal the readiness assessment.
How to Use This Calculator
Choose the current cervical dilation, effacement, fetal station, consistency, and position. The tool adds the numeric score assigned to each domain to produce the Bishop Score. Higher totals point toward a more favorable cervix for induction.
Click Calculate after you adjust any field, or simply wait for the automatic recompute triggered by the select controls.
Methodology
The calculator mirrors the clinical Bishop scoring system. Each cervical observation carries a weighted value (0–3 for dilation, 0–3 for effacement, 0–3 for station, and 0–2 each for consistency and position). We sum the values with no smoothing to deliver the same practical result obstetric teams use when gauging induction readiness.
- Scores below 6 usually mean the cervix is unfavorable for induction.
- Scores between 6 and 8 sit in a gray zone that may benefit from cervical ripening.
- A score of 9 or more is considered favorable and usually predicts easier induction.
Glossary
- Dilation: Diameter of the cervical opening measured in centimeters.
- Effacement: Percentage of cervical thinning relative to the normal 100% state.
- Station: Fetal head position relative to the maternal pelvic ischial spines.
- Consistency: Firmness of the cervix (firm, medium, soft).
- Position: Cervical alignment toward the pelvic axis (posterior, mid, anterior).
Frequently Asked Questions
What is the Bishop Score?
The Bishop Score is a system used to assess the readiness of the cervix for labor.
Why is the Bishop Score important?
It helps in determining the likelihood of a successful induction and the readiness for labor.
How is the Bishop Score calculated?
It is calculated by evaluating cervical dilation, effacement, fetal station, consistency, and position.
What does a high Bishop Score indicate?
A high Bishop Score suggests that the cervix is more favorable for labor induction.
Can the Bishop Score predict labor?
While it provides valuable information, it should not be treated as an absolute predictor of labor onset.
About the author
Ugo Candido builds calculators and educational resources that reflect how clinicians and analysts interpret health metrics.
Contact: info@calcdomain.com
Editorial policy
CalcDomain content is created for education and reviewed for clarity and accuracy. We disavow paid placements that influence calculator outputs, and we expose inputs so readers can confirm how the results are produced.