حاسبة الانحراف المعياري

The calculation runs locally using browser APIs; it does not require uploading measurements. Optional analytics and advertising have separate consent and privacy disclosures. Avoid sensitive inputs.

Population variance divides by n; sample variance divides by n-1. Uses Welford's floating-point algorithm and rejects non-finite results. Up to 10,000 values; extreme magnitudes may exceed numeric range.