IQ Percentile Calculator

Enter an IQ score (mean 100, SD 15). Result is an approximate percentile for educational context. See percentile definition.

IQ score Calculate percentile

Reviewed by Scientific Review Team · Normal approximation · Methodology

FAQ

What IQ score is the 98th percentile?

On a Wechsler-style scale (SD 15), roughly IQ 130 corresponds to about the 98th percentile — the common Mensa-style cutoff area.

Is this calculator official?

No. It uses a normal-distribution approximation for education only. Official percentiles come from the specific test manual and norm group.

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