Sample Proportion Calculator
Calculate sample proportion with confidence intervals
About Sample Proportion
The sample proportion (p-hat) is the ratio of successes to the total sample size. It estimates the population proportion.
Formula: p-hat = x / n
Standard Error: SE = sqrt(p(1-p)/n)
The Wilson score interval is recommended when proportions are close to 0 or 1, or when sample sizes are small.
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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.