IQ Score to Percentile Calculator

Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.

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🎓 Education Disclaimer: Calculators are for guidance only. GPA scales, loan terms, and concordance tables may vary by institution and year. Verify with your school's registrar and official financial aid office.
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How It Works

Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior

Each component has a specific meaning:

  • Normal distribution CDF — The normal distribution cdf recorded for the patient or scenario being assessed.

Note: Interpret the iq percentile result against the clinical thresholds and context described above.

How to Use

Enter the normal distribution CDF for the patient or scenario you are assessing. Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior. Use the iq percentile result to inform your clinical assessment.

Glossary and Definitions

IQ percentile
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.
Intelligence quotient
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.
WISC
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.
WAIS
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.
Stanford-Binet
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.
Cognitive ability
A key concept in IQ Percentile: Convert IQ scores (Wechsler scale: mean 100, SD 15) to percentile ranks using the normal distribution CDF. Includes WISC-V, WAIS-IV, and Stanford-Binet classification bands from Extremely Low to Very Superior.

Frequently Asked Questions