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Bishop Score Calculator

Work out bishop score instantly with clear inputs, formula shown and shareable results.

About Bishop Score Calculator

Adds the five Bishop components — dilation, effacement, station, consistency and position — to judge how favourable the cervix is for induction.

Formula

Bishop score

Dilation 0-3, effacement 0-3, station 0-3, consistency 0-2, position 0-2 (maximum 13); 8 or more is favourable

Worked example

With the default values below, Bishop Score Calculator returns Bishop score of 6. Change any input above and every figure here is recalculated in your browser.

Inputs used

Dilation plus effacement pointsaccepts 0–6
3
Station pointsaccepts 0–3
1
Consistency plus position pointsaccepts 0–4
2

Results

Bishop score
6
Favourability
Intermediate
Induction note
Amniotomy and oxytocin are often appropriate at this score
Maximum possible score
13

Step by step

  1. 1Values used
  2. 2Bishop score
  3. 3Bishop score= 6
  4. 4Favourability= Intermediate
  5. 5Induction note= Amniotomy and oxytocin are often appropriate at this score
  6. 6Maximum possible score= 13

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

What score predicts successful induction?

8 or above is generally favourable; below 6 usually prompts cervical ripening first.

Is there a modified version?

Yes. Simplified Bishop scores using dilation, station and effacement alone perform comparably.

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Bishop Score Calculator | Calcrivo