A millibar is 100 pascals.
Millibars to KSI Converter — mbar to ksi
Convert Millibar (mbar) to KSI (ksi) using the exact conversion factor (1 millibar = 0.0000145038 ksi). See the formula, worked examples, and conversion table.
Millibars 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 100 / 6.89475729e+6.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Millibars to KSI
Millibar 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: A millibar is 100 pascals, and kips per square inch.
Formula
ksi = millibars × 0.000014503773773
This factor comes from each unit's defined relationship to the category's base unit: 1 millibar equals 100 base units, and 1 ksi equals 6894757.29317 base units, so dividing one by the other gives the direct millibar-to-ksi factor of 0.000014503773773.
Simple example
1 mbar × 0.00001450377377 = 0.0000145038 ksi
1 millibar = 0.0000145038 ksi.
Real-world example
100 mbar × 0.00001450377377 = 0.0014503774 ksi
100 millibars = 0.0014503774 ksi.
Conversion table
| Millibar (mbar) | KSI (ksi) |
|---|---|
| 1 mbar | 0.0000145038 ksi |
| 10 mbar | 0.0001450377 ksi |
| 50 mbar | 0.0007251887 ksi |
| 100 mbar | 0.0014503774 ksi |
| 500 mbar | 0.0072518869 ksi |
| 1,000 mbar | 0.0145037738 ksi |
Reverse conversion: KSI to Millibar
0.0000145038 ksi × 68947.57293 = 1.000001808 mbar
0.0000145038 ksi = 1.000001808 millibars.
millibars = ksi × 68947.5729317
For a page dedicated to this direction, see KSI to Millibar.
Understanding the Millibar (mbar)
A millibar is 100 pascals.
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 millibar?
1 millibar equals 0.0000145038 ksi, using the exact defined conversion factor rather than an estimate.
How do I convert millibar to ksi?
Multiply the millibar value by 0.00001450377377. The converter above does this instantly to whatever precision you set.
How do I convert ksi back to millibar?
Use the reverse factor: 1 ksi equals 68,947.57293 millibars. You can also use the swap control in the converter above to flip the direction instantly.
What is a millibar?
Millibar (mbar) is a unit of engineering.
What is a ksi?
KSI (ksi) is a unit of engineering.
Is the millibar to ksi conversion exact?
Yes. Both millibar and ksi are defined by fixed standards rather than physical artifacts, so the factor of 0.00001450377377 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.