Whats 45 degrees F. in celcius?

Sep 10, 2015

${45}^{\circ} F = {23.4}^{\circ} C$

Explanation:

${45}^{\circ} F$ is $\left(45 - 32\right) = 13 {F}^{\circ}$ above freezing (water freezes at ${32}^{\circ} F$)

$180 {F}^{\circ} = 100 {C}^{\circ}$ (difference between freezing and boiling on each scale)

$\Rightarrow 1 {F}^{\circ} = \frac{18}{10} {C}^{\circ}$

$13 {F}^{\circ} = 13 \times \frac{18}{10} {C}^{\circ} = 23.4 {C}^{\circ}$

$23.4 {C}^{\circ}$ above freezing is ${23.4}^{\circ} C$