Exact Age Calculator

Score Conversion Tool

Normal curve

IQ to Age and Grade Equivalents Tool - Use with caution for rough estimates only

The graph below can illustrate to parents and teachers the future difference in mental processing power predicted by a given Full Scale IQ or GIA.  The green dashed line represents the average growth in intellect over the years.  An optional average range (based on IQs from 90-110) can also be plotted on the graph, instead of only using the dashed average line. The black line represents the growth of a particular student's intellect based on his/her general IQ scoreIt can help with setting reasonable expectations for a student's achievement.  For IQs below average, the widening gap over the years demonstrates the increasing challenge that a student can face relative to most other peers in managing grade-level expectations.  It also suggests the need for early intervention, diversifying instruction, EA support in class, alternative programs in high school, and at times, the need for curricular modifications or individualization.  For students with above average IQs, teachers may diversify instruction by presenting more abstract concepts, increasing complexity, making assignments more challenging, enlisting them as peer tutors, providing various enrichment activities in alignment with their interests, and so on.  Just remember that a higher grade-equivalent score does not mean that the student has covered the concepts taught at a higher grade level, it simply means that the student has similar mental processing power to learn faster-than-average at their assigned grade level, and to handle more complex abstract concepts than most other students at their grade placement.

To obtain a copy of the graph below for use in a report, right-click on the graph and select "Copy image."  Then, paste the image into a Word document.  If you want to print a whole-page handout, click the "Print Results & Chart" button below the graph.

IQ to Age & Grade Equivalent Tool

years months

Mental Age: 10.0 years

Grade Equivalent: 5.0