Z-Score Calculator 2026
Use our z-score calculator 2026 to find the z-score for any value. Quick and easy calculations at your fingertips!
Calculation Result
Your calculated z-score is 1.00.
This means that the value of 115 is 1 standard deviation above the mean of 100. In simpler terms, 115 is higher than 84% of the data points in a normally distributed dataset.
How the Calculator Works
The z-score calculator determines how many standard deviations a given value is from the mean. It uses the formula: z = (X - μ) / σ, where X is your value, μ is the mean, and σ is the standard deviation. Just enter these values, and the calculator will do the rest!
Example Calculation
Let's say you want to calculate the z-score for a value of 130, with a mean of 120 and a standard deviation of 10. Using the formula:
z = (130 - 120) / 10 = 1.00
So, the z-score for 130 is also 1.00, indicating it is 1 standard deviation above the mean.
Extra Tips
When interpreting z-scores, remember that a higher absolute value indicates a more extreme position. In practical applications, z-scores are often used in standardized testing and quality control processes.
Frequently asked questions
What is a z-score? A z-score indicates how many standard deviations a data point is from the mean.
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