kPa to inHg Converter

How to convert kilopascals to inches of mercury

FormulainHg = kPa × 0.295299833

Multiply the value in kilopascals by 0.295299833. To go the other way, multiply by 3.38638864 (or divide by 0.295299833).

A kilopascal is smaller than an inch of mercury: it takes 3.38638864 kilopascals to make one inch of mercury.

Worked examples

1 kilopascal1 kPa × 0.295299833 = 0.295299833 inHg
5 kilopascals5 kPa × 0.295299833 = 1.476499165 inHg
10 kilopascals10 kPa × 0.295299833 = 2.95299833 inHg
20 kilopascals20 kPa × 0.295299833 = 5.90599666 inHg
100 kilopascals100 kPa × 0.295299833 = 29.5299833 inHg

Kilopascals to inches of mercury conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Kilopascals to inches of mercury: 0.1–10 kPa
Kilopascals (kPa)	Inches of mercury (inHg)
0.1 kPa	0.029529983 inHg
0.25 kPa	0.073824958 inHg
0.5 kPa	0.14764992 inHg
1 kPa	0.29529983 inHg
2 kPa	0.59059967 inHg
3 kPa	0.8858995 inHg
4 kPa	1.1811993 inHg
5 kPa	1.4764992 inHg
6 kPa	1.771799 inHg
7 kPa	2.0670988 inHg
8 kPa	2.3623987 inHg
9 kPa	2.6576985 inHg
10 kPa	2.9529983 inHg

Kilopascals to inches of mercury: 12–1,000 kPa
Kilopascals (kPa)	Inches of mercury (inHg)
12 kPa	3.543598 inHg
15 kPa	4.4294975 inHg
20 kPa	5.9059967 inHg
25 kPa	7.3824958 inHg
30 kPa	8.858995 inHg
40 kPa	11.811993 inHg
50 kPa	14.764992 inHg
75 kPa	22.147487 inHg
100 kPa	29.529983 inHg
250 kPa	73.824958 inHg
500 kPa	147.64992 inHg
1,000 kPa	295.29983 inHg

About the units

Kilopascal (kPa)

One thousand pascals. Tire pressures outside the US are often given in kPa (220–250 kPa for a car). One kilopascal equals 1,000 pascals (Pa).

Inch of mercury (inHg)

About 3,386.39 Pa. US weather reports and aircraft altimeters use inches of mercury (standard is 29.92 inHg). One inch of mercury equals 3,386.38864 pascals (Pa).

Frequently asked questions

How many inches of mercury are in one kilopascal?

There are 0.295299833 inches of mercury in one kilopascal, and this value is exact by definition.

How do I convert kilopascals to inches of mercury?

Multiply the number of kilopascals by 0.295299833. For example, 10 kPa × 0.295299833 = 2.95299833 inHg.

How many kilopascals are in one inch of mercury?

One inch of mercury equals 3.38638864 kilopascals. That is the reverse factor, 1 ÷ 0.295299833.

What is 10 kilopascals in inches of mercury?

10 kPa = 2.95299833 inHg.

Is this kPa to inHg converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.