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MATH
Z-score Calculator
Solve Z-score with a transparent method.
What do you want to solve?Convert either direction between a raw value and its standard score.
2 optionsZ-SCORE1.5
Find the Z-score: Converts bidirectionally with z = (x − μ) / σ and x = μ + zσ.
- Raw value (x)
- 85
- Mean (μ)
- 70
- Standard deviation (σ)
- 10
- Z-score
- 1.5
- Position
- 1.5 SD above the mean
Formula checkedConverts bidirectionally with z = (x − μ) / σ and x = μ + zσ.