Z-Score Normalization calculator November 4, 2025 by dataquince Z-Score Normalization Paste numbers (comma, space, tab, or newline separated). Formula: z = (x − μ) / σ Values Standard deviation: Sample (n − 1) Population (n) Decimals Normalize Count: – Mean μ: – SD σ: – Min: – Max: – #Original (x)z If all values are identical (σ = 0), z is shown as 0 for all rows.