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How to Convert kPa to Inches of Mercury

Kilopascals and inches of mercury are units of pressure measurement. A kilopascal (kPa) is a metric pressure unit composed of a thousand pascals. Kilopascals are mostly used in measuring lower atmospheric and indoor ventilation system pressures. An inch of mercury (inHg) is a unit of pressure measurement in the U.S. standard measurement system used to gauge atmospheric pressure and the name refers to the movement of mercury in a barometer. To aid in the understanding of different forms of pressure measurement, kilopascals can be easily converted to inches of mercury.

Calculator

Instructions

- 1
  Multiply the amount in kilopascals by 0.295299830714 to calculate an equivalent amount in inches of mercury. For example, 15,000 kPa multiplied by 0.295299830714 results in 4,429.5088 inHg.
- 2
  Divide the amount in kilopascals by 3.386 to also calculate the equivalent amount in inches of mercury. For this example, the same amount of 15,000 kPa divided by 3.386 results in 4,429.5088 inHg.
- 3
  Navigate to an online conversion calculator and enter the amount in kilopascals where prompted. Depending on the individual website, the conversion will appear automatically or will require clicking a "Convert" button to finalize the conversion.

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