Inches of mercury.
inHgs to KSI Converter — inHg to ksi
Convert inHg (inHg) to KSI (ksi) using the exact conversion factor (1 inhg = 0.0004911542 ksi). See the formula, worked examples, and conversion table.
inHgs to KSI converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Kips per square inch.
Result = input x 3386.389 / 6.89475729e+6.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting inHgs to KSI
inHg and KSI both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Inches of mercury, and kips per square inch.
Formula
ksi = inhgs × 0.000491154199634
This factor comes from each unit's defined relationship to the category's base unit: 1 inhg equals 3386.389 base units, and 1 ksi equals 6894757.29317 base units, so dividing one by the other gives the direct inhg-to-ksi factor of 0.000491154199634.
Simple example
1 inHg × 0.0004911541996 = 0.0004911542 ksi
1 inhg = 0.0004911542 ksi.
Real-world example
100 inHg × 0.0004911541996 = 0.04911542 ksi
100 inhgs = 0.04911542 ksi.
Conversion table
| inHg (inHg) | KSI (ksi) |
|---|---|
| 1 inHg | 0.0004911542 ksi |
| 10 inHg | 0.004911542 ksi |
| 50 inHg | 0.02455771 ksi |
| 100 inHg | 0.04911542 ksi |
| 500 inHg | 0.2455770998 ksi |
| 1,000 inHg | 0.4911541996 ksi |
Reverse conversion: KSI to inHg
0.0004911542 ksi × 2036.020461 = 1.000000001 inHg
0.0004911542 ksi = 1.000000001 inhgs.
inhgs = ksi × 2036.02046108
For a page dedicated to this direction, see KSI to inHg.
Understanding the inHg (inHg)
Inches of mercury.
Understanding the KSI (ksi)
Kips per square inch.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ksi are in 1 inhg?
1 inhg equals 0.0004911542 ksi, using the exact defined conversion factor rather than an estimate.
How do I convert inhg to ksi?
Multiply the inhg value by 0.0004911541996. The converter above does this instantly to whatever precision you set.
How do I convert ksi back to inhg?
Use the reverse factor: 1 ksi equals 2,036.020461 inhgs. You can also use the swap control in the converter above to flip the direction instantly.
What is a inhg?
inHg (inHg) is a unit of engineering.
What is a ksi?
KSI (ksi) is a unit of engineering.
Is the inhg to ksi conversion exact?
Yes. Both inhg and ksi are defined by fixed standards rather than physical artifacts, so the factor of 0.0004911541996 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.