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How do you change mm Hg into kpa?

Updated: 8/10/2023
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13y ago

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1 kilopascal is about 7.5 mmHg

For example:

Say you have 360 mmHg and you want to convert it to kPa.

Using unit analysis. (360 mmHg) × (1 kPa) ÷ (7.5 mmHg) = 48 kPa

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12y ago
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14y ago

kPa = mm Hg * 133.32/1000

Note: You can't convert mm (unit of measurement) to kPa (unit of pressure)

this sort of sloppy maths could have contributed to the spherical shape of the Hubble mirror instead of a parabolic shape.

It is possible to convert between mm of Mercury or mm of paraffin, whatever substance used to measure pressure, and kPa. Take your mm measurement of the liquid and multiply it by the relative density of the liquid compared to water. Mercury density is 13.6 and paraffin is 0.85. Finally multiply it by gravity.

You should use the equation: Rho x Gravity x Height (in mm) of liquid measuring pressure.

Say you have 106 mm of mercury. This would equate to: 106 x 9.81 x 13.6 = 14142.096 pa or 14.142096 kPa. Check it with a calculator online somewhere

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13y ago

You can not convert it because they are different quantities.

However they are related to each other by definition:

Pressure = force / surface areaIn Standard Units:

Pascal = Newton / squared metre, or [Pa] = [N/m2]

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13y ago

Formula: mmHg x 0.1333 = kPa

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9y ago

To convert kPa to Pa, simply times the number with 1000. This is because 1kPa is equals to 1000 Pa. So for example, to convert 0.1kPa to Pa, just times 0.1 with 1000, which will give 100 Pa.

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15y ago

pa = 6894.75729 * psi

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10y ago

kPa x 0.145 = psi

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9y ago

1kPa is approx 101.9kg/m2

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Q: How do you change mm Hg into kpa?
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