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 a certified school psychologist and licensed behavior specialist with a Master’s Degree in Education. She is also the head author and CEO at educationandbehavior.com, a site for parents, caregivers, educators, counselors, and therapists to find effective, research-based strategies that work for children. Rachel has been working with individuals with academic and behavioral needs for over 20 years and has a passion for making a positive difference in the lives of children and the adults who support them. For Rachel’s top behavioral strategies all in one place, check out her book, Building Confidence and Improving Behavior in Children, a Guide for Parents and Teachers. If you want Rachel to write for your business, offer behavioral or academic consultation, or speak at your facility about research-based strategies that support children, email her at rachelwise@educationandbehvior.com.
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