Try This Standard Score to Percentile Rank Conversion Calculator
Do you have a standard score from an assessment such as an IQ test (e.g., WISC, WJ, RIAS), achievement test, (WIAT, KTEA), or speech-language assessment?
Are you looking for the percentile rank? I have made an easy way for you to grab it every single time!
Try the ‘Standard Score to Percentile Rank Conversion Calculator’ Below
Step 1. Open this Quick Standard Score to Percentile Rank Converter Calculator in Excel.
Step 2. Save it to your desktop and you have a permanent conversion calculator any time you need it. Just select your standard score from the dropdown, and voila! See the percentile rank appear on the right.
You can also find your percentile rank here in the table below by checking your standard score on the left and your percentile rank on the right.
| Standard Score | Percentile Rank |
| 50 | <.1 |
| 51 | <.1 |
| 52 | 0.1 |
| 53 | 0.1 |
| 54 | 0.1 |
| 55 | 0.1 |
| 56 | 0.1 |
| 57 | 0.1 |
| 58 | 0.2 |
| 59 | 0.3 |
| 60 | 0.4 |
| 61 | 0.5 |
| 62 | 1 |
| 63 | 1 |
| 64 | 1 |
| 65 | 1 |
| 66 | 1 |
| 67 | 1 |
| 68 | 2 |
| 69 | 2 |
| 70 | 2 |
| 71 | 3 |
| 72 | 3 |
| 73 | 4 |
| 74 | 4 |
| 75 | 5 |
| 76 | 5 |
| 77 | 6 |
| 78 | 7 |
| 79 | 8 |
| 80 | 9 |
| 81 | 10 |
| 82 | 12 |
| 83 | 13 |
| 84 | 14 |
| 85 | 16 |
| 86 | 18 |
| 87 | 19 |
| 88 | 21 |
| 89 | 23 |
| 90 | 25 |
| 91 | 27 |
| 92 | 30 |
| 93 | 32 |
| 94 | 34 |
| 95 | 37 |
| 96 | 40 |
| 97 | 42 |
| 98 | 45 |
| 99 | 47 |
| 100 | 50 |
| 101 | 53 |
| 102 | 55 |
| 103 | 58 |
| 104 | 61 |
| 105 | 63 |
| 106 | 66 |
| 107 | 68 |
| 108 | 70 |
| 109 | 73 |
| 110 | 75 |
| 111 | 77 |
| 112 | 79 |
| 113 | 81 |
| 114 | 82 |
| 115 | 84 |
| 116 | 86 |
| 117 | 87 |
| 118 | 88 |
| 119 | 90 |
| 120 | 91 |
| 121 | 92 |
| 122 | 93 |
| 123 | 94 |
| 124 | 95 |
| 125 | 95 |
| 126 | 96 |
| 127 | 96 |
| 128 | 97 |
| 129 | 97 |
| 130 | 98 |
| 131 | 98 |
| 132 | 98 |
| 133 | 99 |
| 134 | 99 |
| 135 | 99 |
| 136 | 99 |
| 137 | 99 |
| 138 | 99 |
| 139 | 99.5 |
| 140 | 99.6 |
| 141 | 99.7 |
| 142 | 99.7 |
| 143 | 99.8 |
| 144 | 99.8 |
| 145 | 99.9 |
| 146 | 99.9 |
| 147 | 99.9 |
| 148 | 99.9 |
| 149 | >99.9 |
| 150 | >99.9 |
Try it out and let me know what you think. Did it work for you?
Education and Behavior – Keeping Us on the Same Page for Kids
Rachel Wise is the author and founder of Education and Behavior. Rachel created Education and Behavior in 2014 for adults to have an easy way to access research-based information to support children in the areas of learning, behavior, and social-emotional development. As a survivor of abuse, neglect, and bullying, Rachel slipped through the cracks of her school and community. Education and Behavior hopes to play a role in preventing that from happening to other children. Rachel is also the author of Building Confidence and Improving Behavior in Children: A Guide for Parents and Teachers.
“Children do best when there is consistency within and across settings (i.e., home, school, community). Education and Behavior allows us to maintain that consistency.”
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