Convert Inches of mercury to Millimeters of mercury
Unit definitions
Inches of mercury
Pressure in inHg can be calculated using $P = \rho \cdot g \cdot h$. $$1\ \text{inHg} \approx 3\,386.39\ \text{Pa}$$
Millimeters of mercury
mmHg is the global standard for measuring blood pressure. $P = \rho \cdot g \cdot h$ can be used to calculate the hydrostatic pressure exerted by a fluid. $$P = \rho \cdot g \cdot h$$ $\rho \approx 13\,595.1\ \text{kg/m}^3$ at $0^\circ\text{C}$ $$g = 9.806\,65\ \text{m/s}^2$$ $$h = 0.001\ \text{m}$$ $$1\ \text{mmHg} \approx 133.322\ \text{Pa}$$
How to convert Inches of mercury to Millimeters of mercury
$$\text{Pressure}_{\text{mmHg}} = \text{Pressure}_{\text{inHg}} \cdot 25.4$$
Examples
Example 1
Convert $30.0\ \text{inHg}$ to $\text{mmHg}$.
$$\text{Pressure}_{\text{mmHg}} = 30.0 \cdot 25.4$$
$$\text{Pressure}_{\text{mmHg}} = 762$$
$$\therefore \ 30.0\ \text{inHg} = 762 \ \text{mmHg}$$
Example 2
Convert $85.0\ \text{inHg}$ to $\text{mmHg}$.
$$\text{Pressure}_{\text{mmHg}} = 85.0 \cdot 25.4$$
$$\text{Pressure}_{\text{mmHg}} = 2159$$
$$\therefore \ 85.0\ \text{inHg} = 2159 \ \text{mmHg}$$
Example 3
Convert $110.0\ \text{inHg}$ to $\text{mmHg}$.
$$\text{Pressure}_{\text{mmHg}} = 110.0 \cdot 25.4$$
$$\text{Pressure}_{\text{mmHg}} = 2794$$
$$\therefore \ 110.0\ \text{inHg} = 2794 \ \text{mmHg}$$
Example 4
Convert $130.0\ \text{inHg}$ to $\text{mmHg}$.
$$\text{Pressure}_{\text{mmHg}} = 130.0 \cdot 25.4$$
$$\text{Pressure}_{\text{mmHg}} = 3302$$
$$\therefore \ 130.0\ \text{inHg} = 3302 \ \text{mmHg}$$
Example 5
Convert $195.0\ \text{inHg}$ to $\text{mmHg}$.
$$\text{Pressure}_{\text{mmHg}} = 195.0 \cdot 25.4$$
$$\text{Pressure}_{\text{mmHg}} = 4953$$
$$\therefore \ 195.0\ \text{inHg} = 4953 \ \text{mmHg}$$
Inches of mercury to Millimeters of mercury conversion table
Convert Inches of mercury to other Pressure units
| Inches of mercury [inHg] | Other unit |
|---|---|
| 1 | 3386.388158 Pascal [Pa] |
| 1 | 3.386388 Kilopascal [kPa] |
| 1 | 0.491154 Pounds per square inch [psi] |