Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.

Nov 4, 2025 · Z-score calculator computes a standardized z-score for any raw data point x. Enter population mean and standard deviation for a given normal distribution.

Oct 28, 2025 · Calculate z-scores, convert between z-scores and percentiles, and interpret standard scores. Free advanced calculator with formulas, examples, and detailed explanations.

Online z-score calculator: enter raw score, population mean and standard deviation to find how many standard deviations a value is from the mean. Instant and accurate results.

This page has two interactive Z-score calculators. The first calculator computes a Z-score based on your observed value, the mean, and the standard deviation. The second uses a Z-score to find the …

Free Z-Score Calculator: Compute standardized scores instantly. Enter raw data, mean & SD. Get step-by-step results + probability interpretation. No signup required.

Use this simple z-Score calculator. Solve for probability, percentile and standard normal distribution curve area. Enter to learn with graphs and plots.

The Z distribution is a fundamental concept in statistics, used widely in hypothesis testing, probability estimation, data comparison, and research analysis. When working with large datasets or normally …

Calculate z-scores effortlessly with our user-friendly tool. Understand your data distribution and make informed decisions easily!

Z-score, otherwise known as the standard score, is the number of standard deviations by which a data point is above the mean. You can use our z-score calculator to determine this value for you. Read on …