Standard Deviation Calculator

Enter sample size and confidence interval limits to estimate SD using a simple 95% CI formula.

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Recent History

Last 50 calculations.

N	UL	LL	SD	Created
234	46.000	6.000	156.092	2026-04-05 22:38:31
213	434.560	345.000	333.440	2026-04-05 22:29:19