How it works
Corrected size = ceiling(n₀ / [1+(n₀−1)/N]). Assumes simple random sampling without replacement.
Input definitions
- Uncorrected sample size
- Enter the value in the labeled unit.
- Population size
- Enter the value in the labeled unit.
A worked example
- Uncorrected sample size
- 384
- Population size
- 1000
Assumptions & limits
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.
Common questions
Does this correct bias in a survey?
No. It adjusts the required sample size for a finite population. Coverage, nonresponse and sampling bias remain separate issues.
How does Finite population sample correction work?
Corrected size = ceiling(n₀ / [1+(n₀−1)/N]). Assumes simple random sampling without replacement.
What should I check before using Finite population sample correction?
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.