Pediatric Blood Pressure Calculator

Your details

Biological sex as used in the AAP 2017 normative tables.
Age in years (1-17). Fractional ages such as 4.5 are accepted and rounded to the nearest whole year for table lookup.
years
Used to determine the height percentile, which adjusts the normal BP range for this child's stature.
cm
Upper number from the blood pressure reading, taken after the child has been sitting quietly for at least 3-5 minutes.
mmHg
Lower number from the blood pressure reading.
mmHg
Systolic percentileNormal
60%

Estimated percentile rank for systolic BP among children with the same age, sex, and height.

Diastolic percentile73.3%
Height percentile57.5%
90th pctile systolic109mmHg
95th pctile systolic113mmHg
90th pctile diastolic70mmHg
95th pctile diastolic74mmHg
CategoryNormal
60 %
Normal<90Elevated90-95Stage 1 HTN95-99Stage 2 HTN99+

Child BP classified as Normal.

  • Systolic BP (100 mmHg) is at approximately the 60th percentile for this child's age, sex, and height.
  • Diastolic BP (65 mmHg) is at approximately the 73th percentile.
  • Height percentile used for the lookup: approximately the 57th, which adjusts the normal BP thresholds for this child's stature.
  • Blood pressure should be confirmed with at least two readings on two separate clinic visits before a diagnosis is made.

Next stepBP is within the normal range. Continue routine annual screening at well-child visits.

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