• hPa   psi
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Rounding Mode:

The hectopascal (hPa) is a commonly used unit for measuring atmospheric pressure, especially in meteorology. One hPa is equivalent to 100 pascals, making it a preferred measurement over pascals due to the convenient scale. Interestingly, 1 hPa is also equivalent to 1 millibar, a unit that was widely used before the adoption of the hectopascal. This equivalence makes it easy for transitioning instruments and readings in weather maps and reports.

Hectopascals play a crucial role in understanding atmospheric conditions, such as weather forecasting and studying phenomena like hurricanes or cyclones. Typically, sea-level pressure is around 1013 hPa, and deviations from this can indicate changing weather patterns, with lower pressures often associated with storm systems. This connection makes the hPa unit vital for predicting and understanding weather events globally.

Did you know?

Pounds per square inch (psi) is a crucial unit of pressure measurement, widely used across various industries, including automotive, aviation, and even space exploration. One interesting fact is that a typical car tire is inflated to around 30 psi, but did you know that a commercial jetliner’s cabin is pressurized to a reduced level of 11 psi to simulate being at a comfortable altitude of about 6,000-8,000 feet? This helps passengers avoid the stress of low oxygen levels while flying at over 35,000 feet, where the atmospheric pressure is a meager 4 psi.

Moreover, psi is pivotal in assessing the force exerted on surfaces. If you’ve ever wondered why deep-sea submarines have thick hulls, it’s because they must withstand pressures of around 8,800 psi at depths of 6 miles beneath the ocean’s surface! This ensures safe exploration of the mysterious deep-sea world, showcasing psi’s significance in enabling human feats in extreme environments.

> Hectopascals to Pounds per inch² Conversion Table

Hectopascals Pounds per square inch
0 hPa 0 psi
10 hPa 0.145038 psi
20 hPa 0.290075 psi
30 hPa 0.435113 psi
40 hPa 0.580151 psi
50 hPa 0.725188 psi
60 hPa 0.870226 psi
70 hPa 1.01526 psi
80 hPa 1.1603 psi
90 hPa 1.30534 psi
100 hPa 1.45038 psi
110 hPa 1.59541 psi
120 hPa 1.74045 psi
130 hPa 1.88549 psi
140 hPa 2.03053 psi
150 hPa 2.17557 psi
160 hPa 2.3206 psi
170 hPa 2.46564 psi
180 hPa 2.61068 psi
190 hPa 2.75572 psi
200 hPa 2.90075 psi
210 hPa 3.04579 psi
220 hPa 3.19083 psi
230 hPa 3.33587 psi
240 hPa 3.4809 psi
250 hPa 3.62594 psi
260 hPa 3.77098 psi
270 hPa 3.91602 psi
280 hPa 4.06106 psi
290 hPa 4.20609 psi
300 hPa 4.35113 psi
310 hPa 4.49617 psi
320 hPa 4.64121 psi
330 hPa 4.78624 psi
340 hPa 4.93128 psi
350 hPa 5.07632 psi
360 hPa 5.22136 psi
370 hPa 5.36639 psi
380 hPa 5.51143 psi
390 hPa 5.65647 psi
400 hPa 5.80151 psi
410 hPa 5.94654 psi
420 hPa 6.09158 psi
430 hPa 6.23662 psi
440 hPa 6.38166 psi
450 hPa 6.5267 psi
460 hPa 6.67173 psi
470 hPa 6.81677 psi
480 hPa 6.96181 psi
490 hPa 7.10685 psi
500 hPa 7.25188 psi
510 hPa 7.39692 psi
520 hPa 7.54196 psi
530 hPa 7.687 psi
540 hPa 7.83203 psi
550 hPa 7.97707 psi
560 hPa 8.12211 psi
570 hPa 8.26715 psi
580 hPa 8.41219 psi
590 hPa 8.55722 psi
600 hPa 8.70226 psi
610 hPa 8.8473 psi
620 hPa 8.99234 psi
630 hPa 9.13737 psi
640 hPa 9.28241 psi
650 hPa 9.42745 psi
660 hPa 9.57249 psi
670 hPa 9.71752 psi
680 hPa 9.86256 psi
690 hPa 10.0076 psi
700 hPa 10.15264 psi
710 hPa 10.29768 psi
720 hPa 10.44271 psi
730 hPa 10.58775 psi
740 hPa 10.73279 psi
750 hPa 10.87783 psi
760 hPa 11.02286 psi
770 hPa 11.1679 psi
780 hPa 11.31294 psi
790 hPa 11.45798 psi
800 hPa 11.60301 psi
810 hPa 11.74805 psi
820 hPa 11.89309 psi
830 hPa 12.03813 psi
840 hPa 12.18317 psi
850 hPa 12.3282 psi
860 hPa 12.47324 psi
870 hPa 12.61828 psi
880 hPa 12.76332 psi
890 hPa 12.90835 psi
900 hPa 13.05339 psi
910 hPa 13.19843 psi
920 hPa 13.34347 psi
930 hPa 13.4885 psi
940 hPa 13.63354 psi
950 hPa 13.77858 psi
960 hPa 13.92362 psi
970 hPa 14.06866 psi
980 hPa 14.21369 psi
990 hPa 14.35873 psi
1000 hPa 14.50377 psi