Megapascal is 1000000 pascal units.
Megapascals to KSI Converter — MPa to ksi
Convert Megapascal (MPa) to KSI (ksi) using the exact conversion factor (1 megapascal = 0.1450377377 ksi). See the formula, worked examples, and conversion table.
Megapascals 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 1e+6 / 6.89475729e+6.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Megapascals to KSI
Megapascal 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: Megapascal is 1000000 pascal units, and kips per square inch.
Formula
ksi = megapascals × 0.14503773773
This factor comes from each unit's defined relationship to the category's base unit: 1 megapascal equals 1000000 base units, and 1 ksi equals 6894757.29317 base units, so dividing one by the other gives the direct megapascal-to-ksi factor of 0.14503773773.
Simple example
1 MPa × 0.1450377377 = 0.1450377377 ksi
1 megapascal = 0.1450377377 ksi.
Real-world example
100 MPa × 0.1450377377 = 14.50377377 ksi
100 megapascals = 14.50377377 ksi.
Conversion table
| Megapascal (MPa) | KSI (ksi) |
|---|---|
| 1 MPa | 0.1450377377 ksi |
| 10 MPa | 1.450377377 ksi |
| 50 MPa | 7.251886887 ksi |
| 100 MPa | 14.50377377 ksi |
| 500 MPa | 72.51886887 ksi |
| 1,000 MPa | 145.0377377 ksi |
Reverse conversion: KSI to Megapascal
0.1450377377 ksi × 6.894757293 = 0.9999999998 MPa
0.1450377377 ksi = 0.9999999998 megapascals.
megapascals = ksi × 6.89475729317
For a page dedicated to this direction, see KSI to Megapascal.
Understanding the Megapascal (MPa)
Megapascal is 1000000 pascal units.
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 megapascal?
1 megapascal equals 0.1450377377 ksi, using the exact defined conversion factor rather than an estimate.
How do I convert megapascal to ksi?
Multiply the megapascal value by 0.1450377377. The converter above does this instantly to whatever precision you set.
How do I convert ksi back to megapascal?
Use the reverse factor: 1 ksi equals 6.894757293 megapascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a megapascal?
Megapascal (MPa) is a unit of engineering.
What is a ksi?
KSI (ksi) is a unit of engineering.
Is the megapascal to ksi conversion exact?
Yes. Both megapascal and ksi are defined by fixed standards rather than physical artifacts, so the factor of 0.1450377377 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.