Sample Size for Mean
Calculate Sample Size for Mean instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Sample Size for Mean
(z·σ/E)²
n
100
More about: Sample Size for Mean
What it calculates
The “Sample Size for Mean” calculator computes n from 1 parameter: (z·σ/e)².
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters (z·σ/E)² = 100 the result is 100.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.