ksi to MPa
US data sheets and ASTM test reports give strengths in ksi; EN 13706, ISO test methods and metric design checks use MPa. Multiply ksi by 6.894757 to get MPa.
- 1 ksi
- 6.894757 MPa
- 1 MPa
- 0.145038 ksi
- Factors
- Exact / NIST SP 811
Last updated
Convert a value
| 6.8948 | MPa (N/mm²) |
|---|---|
| 1,000 | psi |
| 1 | ksi |
| 70.307 | kgf/cm² |
| 6,894.8 | kPa |
Inch profile size to a metric catalog size
Enter the size from a US drawing, in decimals or fractions such as 1/4 or 1-1/2, and see the closest F1 catalog size of the same shape.
101.6 × 101.6 × 6.35 mm
SHS 100×100×6 · 3.5 kg/m
Depth -1.6%, width -1.6%, wall -5.5% against the inch size. Check the section properties before substituting.
A metric section of nearly the same size is not automatically equivalent: check it with the FRP profile calculator or the column calculator.
ksi to MPa conversion table
| ksi | MPa |
|---|---|
| 1 | 6.895 |
| 2 | 13.79 |
| 3 | 20.68 |
| 4 | 27.58 |
| 5 | 34.47 |
| 10 | 68.95 |
| 15 | 103.4 |
| 20 | 137.9 |
| 25 | 172.4 |
| 30 | 206.8 |
| 35 | 241.3 |
| 40 | 275.8 |
| 50 | 344.7 |
| 60 | 413.7 |
| 80 | 551.6 |
| 100 | 689.5 |
Going the other way? MPa to ksi.
FRP values in ksi and MPa
| Value | ksi | MPa |
|---|---|---|
| EN 13706 E23 tensile strength | 34.81 | 240 |
| EN 13706 E17 tensile strength | 24.66 | 170 |
| E23 interlaminar shear | 3.626 | 25 |
Laminate values for F1 profiles are on the technical data page. For loads, weights, section properties and thermal values, use the full FRP engineering unit converter.
Frequently asked questions
How many MPa is 1 ksi?
1 ksi = 6.894757 MPa, and 1 MPa = 0.145038 ksi. Multiply a value in ksi by 6.894757 to get MPa.
Which conversion factors are these?
The exact definitions 1 in = 25.4 mm and 1 lb = 0.45359237 kg, with standard gravity 9.80665 m/s² for pound-force, as listed in NIST Special Publication 811. The table rounds to four significant figures; use the converter above for full precision.
What strength does pultruded FRP have in both units?
EN 13706 E23 tensile strength: 34.81 ksi = 240 MPa; EN 13706 E17 tensile strength: 24.66 ksi = 170 MPa; E23 interlaminar shear: 3.626 ksi = 25 MPa. Values for F1 profiles are on the technical data page.
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