Bishop Score Calculator

Score the five Bishop components for induction readiness — dilation, effacement, station, consistency and position — for a total out of 13.

100% FreeNo sign-upPrivate — runs in your browser
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Result

Total Bishop score
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Readiness
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How to use this tool

1
Score dilation

Closed 0, 1–2 cm 1, 3–4 cm 2, 5+ cm 3.

2
Score effacement and station

Effacement 0–30% to 80%+, station −3 to +1/+2.

3
Score consistency and position

Firm to soft, posterior to anterior.

4
Add the five components

Read the total against the favourable / intermediate / unfavourable guide.

Formula & worked example

Bishop = dilation (0–3) + effacement (0–3) + station (0–3) + consistency (0–2) + position (0–2). Total 0–13. Guide: ≥8 favourable, 6–7 intermediate, <6 unfavourable for induction.

Dilation 3 cm (2), effacement 60% (2), station 0 (2), soft cervix (2) and anterior position (2) gives 10/13, favourable.

Limitations — read this before you rely on it

Educational aid only, using the published Bishop components and bands. It is not medical advice, not a substitute for clinical examination, and must not be used to decide, seek or delay induction. Pregnancy concerns need prompt professional care.

Frequently asked questions

A 0–13 score of cervical readiness for labour induction, from dilation, effacement, station, consistency and position, assessed on examination.

8 or more is generally favourable for induction; below 6 is unfavourable, and 6–7 is intermediate. Thresholds and practice vary.

No — the components need a clinical cervical examination. This tool is for understanding a score a clinician has given, or for learning the system.

Not necessarily. It means induction is less likely to succeed quickly and cervical ripening may be offered first; many other factors matter.

Dr Edward Bishop, who published the scoring system in 1964 to predict induction success in multiparous women.