NUNX

Free calculator · Research & statistics

Sample size

Estimate survey sample size by confidence and margin.

Runs in your browser · No account required
n

Research & statistics

Sample size

Estimate survey sample size by confidence and margin.
Recommended minimum sample385Assumes a large population and simple random sampling.

Use the result with care

NUNX provides estimates for learning and planning. Check assumptions and verify important medical, financial, research or engineering decisions with an appropriate qualified source.

Browse all 39 calculators →