This z-score reference table shows the z-score for a range of value (x) values, assuming a mean (μ) of 70 and a standard deviation (σ) of 10. Every figure is computed with the same engine that powers our Z-Score Calculator, so the numbers are exact.
| Value (x) | Z-score |
|---|---|
| 21 | -4.9000 |
| 43 | -2.7000 |
| 64 | -0.6000 |
| 85 | 1.5000 |
| 130 | 6.0000 |
| 170 | 10.0000 |
| 260 | 19.0000 |
| 430 | 36.0000 |
| 600 | 53.0000 |
| 850 | 78.0000 |
How to use this table
Find the row closest to your value (x) and read across to the z-score. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Z-Score Calculator for a precise answer.
Need a value that is not in the table? — the Z-Score Calculator does it instantly, for free, with the formula and a worked example built in.
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