psi to mbar Converter - Pounds per Square Inch to Millibar

Conversion derivation

Express both psi and mbar in the same base unit Pa (pascal), then cancel the shared base unit.

1. 1

   Rewrite psi in the base unit

   $$1\mathrm{psi}=6,894.76\mathrm{Pa}$$
2. 2

   Rewrite mbar in the base unit

   $$1\mathrm{mbar}=100\mathrm{Pa}$$
3. 3

   Forward conversion

   $$\begin{array}{rl}1\mathrm{psi}& =\frac{6,894.76\cancel{\mathrm{Pa}}}{100\cancel{\mathrm{Pa}}}\times 1\mathrm{mbar}\\ & =\frac{6,894.76}{100}\mathrm{mbar}\\ & =68.9476\mathrm{mbar}\end{array}$$
4. 4

   Reverse conversion

   $$\begin{array}{rl}1\mathrm{mbar}& =\frac{100\cancel{\mathrm{Pa}}}{6,894.76\cancel{\mathrm{Pa}}}\times 1\mathrm{psi}\\ & =\frac{100}{6,894.76}\mathrm{psi}\\ & =0.014503768079\mathrm{psi}\end{array}$$