Wilson Score Interval
Calculate Wilson Score Interval instantly with the exact formula and a worked example. Free online calculator — no signup.
Wilson Score Interval
p (proportion)
n
z (1.96=95%)
Wilson CI
0.19234
Center
0,5
Lower
0,4038
Upper
0,5962
More about: Wilson Score Interval
What it calculates
The “Wilson Score Interval” calculator computes Wilson CI from 3 parameters: p (proportion), n, z (1.96=95%).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters p (proportion) = 0.5, n = 100, z (1.96=95%) = 1.96 the result is 0.1923 (Wilson score (z·corrected)).
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.