Standard Score Calculator
Calculate standard scores (deviation values) from test scores. View percentile rankings and batch calculations.
Standard Score Reference
| Standard score | Top percentile | Ranking estimate |
|---|---|---|
| 70 | 97.7% | Top ~2.3% |
| 65 | 93.3% | Top ~6.7% |
| 60 | 84.1% | Top ~15.9% |
| 55 | 69.1% | Top ~30.9% |
| 50 | 50.0% | Average (top 50%) |
| 45 | 30.9% | Top ~69.1% |
| 40 | 15.9% | Top ~84.1% |
How to Use
Enter Values
Enter score, mean, and SD
Calculate
Deviation score is calculated automatically
Check Results
Check deviation score and ranking estimate
Features
Instant Calculation
Calculate deviation score in real-time
Rank Estimate
Show percentile ranking
Batch Calculation
Calculate from a list of scores
FAQ
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