Hectopascals to Pounds per Square Inch (hPa → psi)
Formula
1 hPa = 0.014503774389728311 psiConversion Table
| hPa | psi |
|---|---|
| 0 | 0 |
| 1.0000 | 0.014504 |
| 2.0000 | 0.029008 |
| 3.0000 | 0.043511 |
| 4.0000 | 0.058015 |
| 5.0000 | 0.072519 |
| 6.0000 | 0.087023 |
| 7.0000 | 0.10153 |
| 8.0000 | 0.11603 |
| 9.0000 | 0.13053 |
| 10.000 | 0.14504 |
| 11.000 | 0.15954 |
| 12.000 | 0.17405 |
| 13.000 | 0.18855 |
| 14.000 | 0.20305 |
| 15.000 | 0.21756 |
| 16.000 | 0.23206 |
| 17.000 | 0.24656 |
| 18.000 | 0.26107 |
| 19.000 | 0.27557 |
| hPa | psi |
|---|---|
| 20.000 | 0.29008 |
| 21.000 | 0.30458 |
| 22.000 | 0.31908 |
| 23.000 | 0.33359 |
| 24.000 | 0.34809 |
| 25.000 | 0.36259 |
| 26.000 | 0.37710 |
| 27.000 | 0.39160 |
| 28.000 | 0.40611 |
| 29.000 | 0.42061 |
| 30.000 | 0.43511 |
| 31.000 | 0.44962 |
| 32.000 | 0.46412 |
| 33.000 | 0.47862 |
| 34.000 | 0.49313 |
| 35.000 | 0.50763 |
| 36.000 | 0.52214 |
| 37.000 | 0.53664 |
| 38.000 | 0.55114 |
| 39.000 | 0.56565 |
| hPa | psi |
|---|---|
| 40.000 | 0.58015 |
| 41.000 | 0.59465 |
| 42.000 | 0.60916 |
| 43.000 | 0.62366 |
| 44.000 | 0.63817 |
| 45.000 | 0.65267 |
| 46.000 | 0.66717 |
| 47.000 | 0.68168 |
| 48.000 | 0.69618 |
| 49.000 | 0.71068 |
| 50.000 | 0.72519 |
| 51.000 | 0.73969 |
| 52.000 | 0.75420 |
| 53.000 | 0.76870 |
| 54.000 | 0.78320 |
| 55.000 | 0.79771 |
| 56.000 | 0.81221 |
| 57.000 | 0.82672 |
| 58.000 | 0.84122 |
| 59.000 | 0.85572 |
| hPa | psi |
|---|---|
| 60.000 | 0.87023 |
| 61.000 | 0.88473 |
| 62.000 | 0.89923 |
| 63.000 | 0.91374 |
| 64.000 | 0.92824 |
| 65.000 | 0.94275 |
| 66.000 | 0.95725 |
| 67.000 | 0.97175 |
| 68.000 | 0.98626 |
| 69.000 | 1.0008 |
| 70.000 | 1.0153 |
| 71.000 | 1.0298 |
| 72.000 | 1.0443 |
| 73.000 | 1.0588 |
| 74.000 | 1.0733 |
| 75.000 | 1.0878 |
| 76.000 | 1.1023 |
| 77.000 | 1.1168 |
| 78.000 | 1.1313 |
| 79.000 | 1.1458 |
Hectopascals to Pounds per Square Inch Conversion
Converting Hectopascals (hPa) to Pounds per Square Inch (psi) is a common pressure conversion. 1 hPa equals 0.014504 psi. For example, 100 hPa is equal to 1.450377 psi.
Quick Mental Math: Hectopascals to Pounds per Square Inch
Pressure units (atm, bar, psi, pascal) are diverse; use atmospheres as a reference tier.
Why is converting Hectopascals to Pounds per Square Inch tricky?
Magnitude or direction confusion between hectopascals and pounds-per-square-inch is the primary error source.
Quick Reference Values
1 hPa = 0.014504 psi. 5 hPa = 0.072519 psi. 10 hPa = 0.145038 psi. 25 hPa = 0.362594 psi. 50 hPa = 0.725189 psi. 100 hPa = 1.450377 psi.
What is Hectopascals?
Hectopascals (hPa) is a unit of pressure. The hectopascal is a unit of pressure equal to 100 pascals. It is defined as exactly 100 newtons per square meter (100 N/m²), where the pascal (Pa) is the SI derived unit of pressure. The hectopascal is widely used in meteorology for atmospheric pressure measurements and aligns with the SI system as per international standards [bipm-si-brochure]. The pascal unit was named after Blaise Pascal and officially adopted by the General Conference on Weights and Measures (CGPM) in 1971. The hectopascal emerged as a convenient multiple used in meteorology to represent atmospheric pressure values in the 20th century [cgpm-resolutions]. Hectopascals are standard in weather reports worldwide, especially in Europe, Asia, and Australia. The US National Weather Service uses millibars, numerically equivalent to hectopascals, for atmospheric pressure. It is recognized by ISO 80000 as a unit of pressure [iso-80000].
What is Pounds per Square Inch?
Pounds per Square Inch (psi) is a unit of pressure. Pounds per square inch (psi) measures pressure as force in pounds applied over one square inch of area. It is defined as 1 psi = 6,894.76 pascals in the SI unit system [nist-si-guide]. Psi originated in English-speaking countries for engineering and industrial applications during the 19th century, formalized through American standards for pressure measurement [nist-si-guide]. Psi remains common in the United States, Canada, and the UK for tire pressure, hydraulic systems, and HVAC industries. It is also referenced in international engineering standards [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: hecto pascals, hecto-pascals, hecto pascal, hec topascal, pounds per square inch, pound per sq inch, psiin. All of these refer to the Hectopascals to Pounds per Square Inch conversion.