Simple Random Sample Calculator
Calculate sample size requirements or analyze existing samples
Enter either Sample Size to analyze, or Margin of Error to calculate required sample size.
About Simple Random Sampling
Simple Random Sampling (SRS) is a probability sampling method where every element in the population has an equal chance of being selected.
Key Characteristics:
- Every element has probability n/N of being selected
- All samples of size n are equally likely
- Finite Population Correction (FPC) is applied when sampling > 5% of population
Sample Size Formula: n = (Z² × p × (1-p)) / (e² + (Z² × p × (1-p))/N)
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.