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Electronics Engineering

Standard deviation in measurement Calculator

Electronics Engineering

GATE Verified formulaSI defaultsCompatible units
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Standard deviation in measurement

Equation and meaning

\[\sigma = \frac{r}{0.6745}\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

r — Radius
Radius SI unit: m
sigma — Sigma
Enter this value unless it is the selected unknown.
Equation 2

Equation and meaning

\[\sigma = \frac{1}{h \cdot \sqrt{2}}\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

h — Height
Height SI unit: m
sigma — Sigma
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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