Z分数计算器

Use the free online Z分数计算器 tool. Fast, private and easy to use — runs entirely in your browser. Part of our 统计计算器 collection.

中位数与众数计算器

Numbers (comma or space separated)

Find the median, mode, sum, count, minimum and maximum of any list of numbers.

Numbers (comma or space separated)

Get both the population and sample standard deviation of a data set, with the mean shown for context.

Numbers (comma or space separated)

Measure how spread out a data set is with population and sample variance.

Value x Mean μ Standard deviation σ

See how many standard deviations a value lies from the mean with z = (x − μ) / σ.

n (total items) r (chosen items)

Count arrangements and selections instantly — nPr for ordered picks and nCr for unordered ones.

Numbers (comma or space separated)

Find the range of a data set — the difference between its largest and smallest values.

Numbers (comma or space separated)

Compare the relative spread of data sets with CV = σ / μ expressed as a percentage.

Numbers (comma or space separated)

Compute the midrange — the midpoint between the minimum and maximum of a data set.

Is the Z分数计算器 free to use?

Yes. The Z分数计算器 is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.

Is the Z分数计算器 safe and private?

Absolutely. The Z分数计算器 runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.

Do I need to install anything to use the Z分数计算器?

No installation is needed. The Z分数计算器 works instantly online in any modern browser on desktop, tablet or mobile.

Does the Z分数计算器 work on mobile phones?

Yes. The Z分数计算器 is fully responsive and works smoothly on iPhone, Android and any other device.