Z-score Calculator
Z = (x − μ) / σ.
Frequently asked questions
What does the Z-score Calculator do?
Z = (x − μ) / σ. Enter your values and get an instant estimate in your browser — free, with no signup.
Is the Z-score Calculator free to use?
Yes. OpenCalcy calculators are free to use, work on mobile, and keep favorites privately in your browser.