Convert Kilograms-force per Square Millimetre to ksi
1 kilogram-force per square millimetre (kgf/mm²) = 1.422334331 ksi. 1 ksi = 0.7030695796 kgf/mm². Example: 15 kgf/mm² = 15 × 1.422334331 = 21.33501496 ksi.
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1 kgf/mm² = 1.422334331 ksi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilogram-force per square millimetre to ksi converter to paste a column from Excel.
How to Convert Kilogram-force per Square Millimetre to ksi
- 1 kgf/mm² = 1.422334331 ksi
- 1 ksi = 0.7030695796 kgf/mm²
- Example: convert 15 kgf/mm² to ksi: 15 kgf/mm² = 15 × 1.422334331 ksi = 21.33501496 ksi
Formula
ksi = kgf/mm² × 1.422334330712
Derivation from SI units:
- 1 kgf/mm² = 9.80665 N ÷ 1 mm² = 9.80665 MPa (exact)
- 1 ksi = 1000 psi = 1 kip/in² = 6.894757293168 MPa
- 1 kgf/mm² = 9806650 Pa ÷ 6894757.293168 Pa per ksi = 1.422334330712 ksi
Both units are defined exactly, so the factor is exact. Kilogram-force per Square Millimetre definition: kilogram-force per square millimetre; ksi definition: ksi.
Worked examples
- A reading of 24 kgf/mm² converts to 34.13602394 ksi.
24 kgf/mm² × 1.422334331 = 34.13602394 ksi - A value of 50 kgf/mm² is 71.11671654 ksi.
50 kgf/mm² × 1.422334331 = 71.11671654 ksi
Kilogram-force per Square Millimetre to ksi conversion table
| Kilograms-force per Square Millimetre (kgf/mm²) | ksi |
|---|---|
| 1 kgf/mm² | 1.422334331 ksi |
| 5 kgf/mm² | 7.111671654 ksi |
| 10 kgf/mm² | 14.22334331 ksi |
| 20 kgf/mm² | 28.44668661 ksi |
| 24 kgf/mm² | 34.13602394 ksi |
| 30 kgf/mm² | 42.67002992 ksi |
| 36 kgf/mm² | 51.20403591 ksi |
| 40 kgf/mm² | 56.89337323 ksi |
| 50 kgf/mm² | 71.11671654 ksi |
| 60 kgf/mm² | 85.34005984 ksi |
| 80 kgf/mm² | 113.7867465 ksi |
| 100 kgf/mm² | 142.2334331 ksi |
| 120 kgf/mm² | 170.6801197 ksi |
Where it's used
Kilograms-force per Square Millimetre are used for tensile strength in older JIS and GB steel standards, while ksi appear in yield and tensile strength in ASTM and ASME material specifications. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Kilogram-force per Square Millimetre to other pressure units
| Conversion | 1 kgf/mm² equals |
|---|---|
| kilogram-force per square millimetre to ksi | 1.422334331 ksi |
| kilogram-force per square millimetre to pascal | 9806650 Pa |
| kilogram-force per square millimetre to kilopascal | 9806.65 kPa |
| kilogram-force per square millimetre to kilogram-force per square centimetre | 100 kgf/cm² |
| kilogram-force per square millimetre to psi | 1422.334331 psi |
| kilogram-force per square millimetre to bar | 98.0665 bar |
| kilogram-force per square millimetre to millimeter of mercury | 73555.91353 mmHg |
| kilogram-force per square millimetre to inch of water | 39370.07874 inH₂O |
Show 12 more units
| kilogram-force per square millimetre to atmosphere | 96.78411054 atm |
|---|---|
| kilogram-force per square millimetre to megapascal | 9.80665 MPa |
| kilogram-force per square millimetre to gigapascal | 0.00980665 GPa |
| kilogram-force per square millimetre to newton per square millimetre | 9.80665 N/mm² |
| kilogram-force per square millimetre to millibar | 98066.5 mbar |
| kilogram-force per square millimetre to torr | 73555.92401 Torr |
| kilogram-force per square millimetre to millimeter of water | 1000000 mmH₂O |
| kilogram-force per square millimetre to centimeter of water | 100000 cmH₂O |
| kilogram-force per square millimetre to inch of mercury | 2895.902107 inHg |
| kilogram-force per square millimetre to decibar | 980.665 dbar |
| kilogram-force per square millimetre to inch of water (60 °F) | 39409.45989 inH₂O (60 °F) |
| kilogram-force per square millimetre to barye | 98066500 Ba |
Frequently asked questions
How many ksi are in 1 kilogram-force per square millimetre?
1 kgf/mm² = 1.422334331 ksi.
How do I convert kilograms-force per square millimetre to ksi?
Multiply the value in kgf/mm² by 1.422334331. For example, 15 kgf/mm² × 1.422334331 = 21.33501496 ksi.
Is the kgf/mm² to ksi 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, "kilogram-force per square millimeter".
- 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)".
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 Kilograms-force per Square Millimetre to ksi. Retrieved October 25, 2026, from https://scientificconverters.com/pressure/kilogram-force-per-square-millimeter-to-ksi/
IEEE
Scientific Converters, "Convert Kilograms-force per Square Millimetre to ksi," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/kilogram-force-per-square-millimeter-to-ksi/