Convert inches of water (inH2O, in WC) to psi, or psi to inches of water, using water at 4 °C; results also show kPa, Pa, mbar and oz/in² equivalents.
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Inches Of Water To psi Formula
The following equation is used to convert inches of water to psi.
- Where psi is the pressure in pounds per square inch (psi)
- inH2O is the pressure measured in inches of water (inH2O)
- 0.03612629 is the rounded conversion factor for water at 4 °C and standard gravity
To convert inches of water to psi, multiply the inches of water by 0.03612629.
| Inches of water (inH2O) | Pounds per square inch (psi) |
|---|---|
| 1/16 | 0.002 |
| ⅛ | 0.005 |
| 1/6 | 0.006 |
| ¼ | 0.009 |
| ⅓ | 0.012 |
| ⅜ | 0.014 |
| ½ | 0.018 |
| ⅝ | 0.023 |
| ⅔ | 0.024 |
| ¾ | 0.027 |
| ⅞ | 0.032 |
| 1 | 0.036 |
| 1¼ | 0.045 |
| 1⅓ | 0.048 |
| 1½ | 0.054 |
| 1¾ | 0.063 |
| 2 | 0.072 |
| 2½ | 0.090 |
| 3 | 0.108 |
| 4 | 0.145 |
| *Assumes water at 4 °C. Conversion used: 1 inH2O ≈ 0.03612629 psi. | |
What is Inches Of Water To PSI?
Definition:
Inches of water (inH2O) is a unit of pressure commonly used in low-pressure applications such as HVAC and fluid dynamics, while psi (pounds per square inch) is widely utilized in various industries for measuring pressure.
How to Convert Inches Of Water To PSI?
Example Problem:
The following example outlines the steps and information needed to perform the conversion.
First, determine the inches of water. In this example, there were 10 inches of water measured.
Next, calculate the pressure by multiplying the inches of water by the conversion factor 0.03612629.
Finally, apply the formula above:
psi = inH2O * 0.03612629
psi = 10 * 0.03612629
psi ≈ 0.361263
FAQ
What is the conversion factor used in this calculator?
The conversion factor 0.03612629 indicates that each inch of water at 4 °C is approximately 0.03612629 psi, allowing for a pressure conversion between these units of pressure.
When should I use inches of water instead of psi?
Inches of water is typically used in low-pressure systems, such as HVAC applications and water column measurements, while psi is more common in high-pressure industrial or automotive settings.
Can this calculator convert values in both directions?
Yes. Choose the direction, enter the pressure value and select Calculate.
