Unit definitions

Pounds per square inch

One psi equals one pound (avoirdupois) force applied to an area of one square inch. Pound force can be derived as follows. $$F = m \cdot a$$ $$a = g = 9.806\,65\ \text{m/s}^2$$ $$m = 1\ \text{lb}$$ $$1\ \text{lb} = 0.453\,592\,37\ \text{kg}$$ $$1\ \text{lbf} = 0.453\,592\,37 \ \text{kg} \times 9.806\,65 \ \text{m/s}^2$$ $$1\ \text{lbf} \approx 4.448\,222 \ \text{N}$$ After dividing by the area of one square inch, we get the following. $$1\ \text{psi} = \frac{1\ \text{lbf}}{1\ \text{in}^2}$$ $$1\ \text{in}^2 = 0.000\,645\,16\ \text{m}^2$$ $$1\ \text{psi} \approx 6\,894.76\ \text{Pa}$$

Kilopascal

One kilopascal equals $10^3$ pascals.

How to convert Pounds per square inch to Kilopascal

$$\text{Pressure}_{\text{kPa}} = \text{Pressure}_{\text{psi}} \cdot 6.894757293168361336722673445346891$$

Examples

Example 1

Convert $50.0\ \text{psi}$ to $\text{kPa}$.

$$\text{Pressure}_{\text{kPa}} = 50.0 \cdot 6.894757293168361336722673445346891$$

$$\text{Pressure}_{\text{kPa}} = 344.737865$$

$$\therefore \ 50.0\ \text{psi} = 344.737865 \ \text{kPa}$$

Example 2

Convert $60.0\ \text{psi}$ to $\text{kPa}$.

$$\text{Pressure}_{\text{kPa}} = 60.0 \cdot 6.894757293168361336722673445346891$$

$$\text{Pressure}_{\text{kPa}} = 413.685438$$

$$\therefore \ 60.0\ \text{psi} = 413.685438 \ \text{kPa}$$

Example 3

Convert $120.0\ \text{psi}$ to $\text{kPa}$.

$$\text{Pressure}_{\text{kPa}} = 120.0 \cdot 6.894757293168361336722673445346891$$

$$\text{Pressure}_{\text{kPa}} = 827.370875$$

$$\therefore \ 120.0\ \text{psi} = 827.370875 \ \text{kPa}$$

Example 4

Convert $145.0\ \text{psi}$ to $\text{kPa}$.

$$\text{Pressure}_{\text{kPa}} = 145.0 \cdot 6.894757293168361336722673445346891$$

$$\text{Pressure}_{\text{kPa}} = 999.739808$$

$$\therefore \ 145.0\ \text{psi} = 999.739808 \ \text{kPa}$$

Example 5

Convert $190.0\ \text{psi}$ to $\text{kPa}$.

$$\text{Pressure}_{\text{kPa}} = 190.0 \cdot 6.894757293168361336722673445346891$$

$$\text{Pressure}_{\text{kPa}} = 1310.003886$$

$$\therefore \ 190.0\ \text{psi} = 1310.003886 \ \text{kPa}$$

Pounds per square inch to Kilopascal conversion table

Pounds per square inch to Kilopascal conversion table

Pounds per square inch [psi]	Kilopascal [kPa]
1	6.894757
2	13.789515
3	20.684272
4	27.579029
5	34.473786
6	41.368544
7	48.263301
8	55.158058
9	62.052816
10	68.947573

Convert Pounds per square inch to other Pressure units

Convert Pounds per square inch to other Pressure units

Pounds per square inch [psi]	Other unit
1	6894.757293 Pascal [Pa]
1	51.714933 Millimeters of mercury [mmHg]
1	2.036021 Inches of mercury [inHg]