Pressure

Inches of Water to Kilopounds per Square Inch Converter

Convert inches of water (inH₂O) to kilopounds per square inch (ksi). 1 inch of water = 0.000036127292 kilopounds per square inch (exact)

1 inch of water = 0.0000361272920001 kilopounds per square inch

How to convert inches of water to kilopounds per square inch

Formulaksi = inH₂O × 0.000036127292

Multiply the value in inches of water by 0.000036127292. To go the other way, multiply by 27,679.90471 (or divide by 0.000036127292).

An inch of water is smaller than a kilopound per square inch: it takes 27,679.90471 inches of water to make one kilopound per square inch.

Worked examples

  • 1 inch of water1 inH₂O × 0.000036127292 = 0.000036127292 ksi
  • 5 inches of water5 inH₂O × 0.000036127292 = 0.00018063646 ksi
  • 10 inches of water10 inH₂O × 0.000036127292 = 0.00036127292 ksi
  • 20 inches of water20 inH₂O × 0.000036127292 = 0.00072254584 ksi
  • 100 inches of water100 inH₂O × 0.000036127292 = 0.0036127292 ksi

Inches of water to kilopounds per square inch conversion table

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

Inches of water to kilopounds per square inch: 0.1–10 inH₂O
Inches of water (inH₂O)Kilopounds per square inch (ksi)
0.1 inH₂O0.0000036127292 ksi
0.25 inH₂O0.000009031823 ksi
0.5 inH₂O0.000018063646 ksi
1 inH₂O0.000036127292 ksi
2 inH₂O0.000072254584 ksi
3 inH₂O0.00010838188 ksi
4 inH₂O0.00014450917 ksi
5 inH₂O0.00018063646 ksi
6 inH₂O0.00021676375 ksi
7 inH₂O0.00025289104 ksi
8 inH₂O0.00028901834 ksi
9 inH₂O0.00032514563 ksi
10 inH₂O0.00036127292 ksi
Inches of water to kilopounds per square inch: 12–1,000 inH₂O
Inches of water (inH₂O)Kilopounds per square inch (ksi)
12 inH₂O0.0004335275 ksi
15 inH₂O0.00054190938 ksi
20 inH₂O0.00072254584 ksi
25 inH₂O0.0009031823 ksi
30 inH₂O0.0010838188 ksi
40 inH₂O0.0014450917 ksi
50 inH₂O0.0018063646 ksi
75 inH₂O0.0027095469 ksi
100 inH₂O0.0036127292 ksi
250 inH₂O0.009031823 ksi
500 inH₂O0.018063646 ksi
1,000 inH₂O0.036127292 ksi

About the units

Inch of water (inH₂O)

Conventional value 249.08891 Pa. HVAC duct static pressure and gas-appliance pressures use inches of water column.

Kilopound per square inch (ksi)

The kilopound per square inch (ksi) is a unit of pressure in the US customary system. One kilopound per square inch equals 6,894,757.293 pascals (Pa).

Frequently asked questions

How many kilopounds per square inch are in one inch of water?

There are 0.000036127292 kilopounds per square inch in one inch of water, and this value is exact by definition.

How do I convert inches of water to kilopounds per square inch?

Multiply the number of inches of water by 0.000036127292. For example, 10 inH₂O × 0.000036127292 = 0.00036127292 ksi.

How many inches of water are in one kilopound per square inch?

One kilopound per square inch equals 27,679.90471 inches of water. That is the reverse factor, 1 ÷ 0.000036127292.

What is 10 inches of water in kilopounds per square inch?

10 inH₂O = 0.00036127292 ksi.

Is this inH₂O to ksi 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.

Convert inches of water to other units

Convert other units to kilopounds per square inch

Try “psi to bar”, “cups”, “binary” or “5 ft in cm”.