Temperature Coefficient of Resistance Formula

Equation for calculate temperature coefficient of resistance is,

$\alpha =\frac{\mathrm{R₁₀₀}-\mathrm{R₀}}{\mathrm{100°C}·\mathrm{R₀}}$

where,
R₀ = resistance of the sensor at 0 °C
R₁₀₀ = resistance of the sensor at 100 °C
α = temperature coefficient of resistance