Convert ksi to Megapascals (ksi to MPa)
1 ksi = 6.894757293 megapascals (MPa). 1 MPa = 0.1450377377 ksi. Example: 36 ksi = 36 × 6.894757293 = 248.2112626 MPa.
Also searched as ksi to MPa, ksi in MPa, ksi into megapascals, ksi in megapascals, ksi into megapascal, ksi to megapascal, ksi to megapascals converter and how many megapascals in a ksi.
1 ksi = 6.894757293 MPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ksi to megapascal converter to paste a column from Excel.
How to Convert ksi to Megapascal
- 1 ksi = 6.894757293 MPa
- 1 MPa = 0.1450377377 ksi
- Example: convert 36 ksi to MPa: 36 ksi = 36 × 6.894757293 MPa = 248.2112626 MPa
Formula
MPa = ksi × 6.894757293168
Derivation from SI units:
- 1 ksi = 1000 psi = 1 kip/in² = 6.894757293168 MPa
- 1 MPa = 10⁶ Pa = 1 N/mm²
- 1 ksi = 6894757.293168 Pa ÷ 1000000 Pa per MPa = 6.894757293168 MPa
Both units are defined exactly, so the factor is exact. ksi definition: ksi; Megapascal definition: megapascal.
Worked examples
- A36 steel with a minimum yield strength of 36 ksi has 248.2112626 MPa.
36 ksi × 6.894757293 = 248.2112626 MPa - Grade 50 steel at 50 ksi yields at 344.7378647 MPa.
50 ksi × 6.894757293 = 344.7378647 MPa
ksi to Megapascal conversion table
| ksi | Megapascals (MPa) |
|---|---|
| 1 ksi | 6.894757293 MPa |
| 3 ksi | 20.68427188 MPa |
| 4 ksi | 27.57902917 MPa |
| 5 ksi | 34.47378647 MPa |
| 10 ksi | 68.94757293 MPa |
| 20 ksi | 137.8951459 MPa |
| 30 ksi | 206.8427188 MPa |
| 36 ksi | 248.2112626 MPa |
| 50 ksi | 344.7378647 MPa |
| 60 ksi | 413.6854376 MPa |
| 65 ksi | 448.1592241 MPa |
| 70 ksi | 482.6330105 MPa |
| 100 ksi | 689.4757293 MPa |
| 150 ksi | 1034.213594 MPa |
| 200 ksi | 1378.951459 MPa |
Where it's used
Yield and tensile strengths in ksi from ASTM, ASME and AISC specifications are converted to MPa for ISO and European material standards. Multiply by about 6.895.
ksi to other pressure units
| Conversion | 1 ksi equals |
|---|---|
| ksi to megapascal | 6.894757293 MPa |
| ksi to pascal | 6894757.293 Pa |
| ksi to kilopascal | 6894.757293 kPa |
| ksi to kilogram-force per square centimetre | 70.30695796 kgf/cm² |
| ksi to psi | 1000 psi |
| ksi to bar | 68.94757293 bar |
| ksi to millimeter of mercury | 51714.9252 mmHg |
| ksi to inch of water | 27679.90471 inH₂O |
Show 12 more units
| ksi to atmosphere | 68.04596391 atm |
|---|---|
| ksi to gigapascal | 0.006894757293 GPa |
| ksi to newton per square millimetre | 6.894757293 N/mm² |
| ksi to kilogram-force per square millimetre | 0.7030695796 kgf/mm² |
| ksi to millibar | 68947.57293 mbar |
| ksi to torr | 51714.93257 Torr |
| ksi to millimeter of water | 703069.5796 mmH₂O |
| ksi to centimeter of water | 70306.95796 cmH₂O |
| ksi to inch of mercury | 2036.020677 inHg |
| ksi to decibar | 689.4757293 dbar |
| ksi to inch of water (60 °F) | 27707.5924 inH₂O (60 °F) |
| ksi to barye | 68947572.93 Ba |
Frequently asked questions
What is 36 ksi in MPa?
36 ksi = 248.2112626 MPa, the minimum yield strength of ASTM A36 steel.
Is ksi the same as kpsi?
Yes. Both mean 1000 psi (kip per square inch).
How many megapascals are in 1 ksi?
1 ksi = 6.894757293 MPa.
How do I convert ksi to megapascals?
Multiply the value in ksi by 6.894757293. For example, 36 ksi × 6.894757293 = 248.2112626 MPa.
Is the ksi to MPa conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kip per square inch (ksi)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert ksi to Megapascals (ksi to MPa). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/ksi-to-megapascal/
IEEE
Scientific Converters, "Convert ksi to Megapascals (ksi to MPa)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/ksi-to-megapascal/