Consult a local psychologist who administers IQ tests and schedule a time to take the test.
Undergo the test in the presence of the psychologist.
Understand how the test is evaluated. Two scales (verbal and performance) are calculated. The verbal scale evaluates comprehension, vocabulary, digit span (the recall of number strings), etc. Performance scales involve picture completion, object assembly and matrix reasoning, among others.
Allow the psychologist to explain the results to you. IQ is given as "mental age" (based on your scores) divided by "chronological age." The figure is multiplied by 100, which is your IQ.
Compare your IQ to the standard scale. An IQ of over 128 is considered "genius," between 91 and 100 is "average," and anything below 90 is "below average."