ConverterHub

Bishop Score Calculator

Enter each Bishop component score to get the total and interpretation.

How it is calculated

The total is a plain sum of five component points: score = dilation + effacement + station + consistency + position. You enter the point value of each component, not a measurement in centimetres or percent; the examiner converts the findings to points first. Dilation, effacement and station accept 0 to 3 points each, consistency and position 0 to 2 points each, so the maximum is 13.

Any value outside these ranges, or a missing field, gives no result. The total is then read in three bands: 5 or less is unfavorable (unripe cervix), 6 or 7 is intermediate, and 8 or more is favorable. This is the classic scoring, a screening aid only; it does not replace an examination by a qualified provider.

Worked example

Suppose the examiner assigns 2 points for dilation, 2 for effacement, 1 for station, 1 for consistency and 1 for position. Adding them: 2 + 2 + 1 + 1 + 1 = 7. The tool shows 7 / 13, which falls in the intermediate band (6 to 7). One more point, for example from a station of 2, would give 8 and move the result into the favorable band.

Try this example →

Common mistakes

  • Typing the raw findings, such as 4 cm of dilation or 60 percent effacement, instead of the 0 to 3 point value for that component. Values outside the allowed range give no result.
  • Using the 0 to 3 scale for consistency or position. These two components only go up to 2 points.
  • Treating the total as a prediction for one person. A score of 8 or more suggests a favorable cervix, but it is not a guarantee that induction will succeed.
  • Mixing scoring systems. This tool uses the classic five-component Bishop score, so points from a modified version with different components should not be entered here.
  • Scoring from a self-check at home. The findings must come from a clinical examination.

Sources

About this calculator

The Bishop score is an obstetric scoring system that adds up five components of the cervix — dilation, effacement, station, consistency, and position — each rated on its own point scale, to give a total that usually ranges from 0 to 13. It was devised by Dr. Edward Bishop in 1964 to predict how ready the cervix is for labor.

Obstetricians and midwives use the score before scheduling a labor induction: a higher score, generally 8 or above, suggests the cervix is favorable and induction is likely to succeed, while a low score often points toward a cervical ripening agent first. This calculator adds your entered component scores and gives the corresponding interpretation, though it is not medical advice and any induction decision belongs to your care provider.

Was this helpful?

You can pick up to 3 reactions.

Comments

  • Be the first to comment.

Popular calculators

Loan Calculator

Monthly payment, total interest and full amortization schedule.

Percentage Calculator

Percent change, percent of, and ratio calculations.

Discount Calculator

Calculate final price, savings, and discount amount.

BMI Calculator

Body mass index from height and weight (metric or imperial).

Age Calculator

Compute your exact age in years, months and days from a birth date.

Compound Interest Calculator

Calculate the final amount and interest earned with compounding.

All Calculators