Convert Kilograms-force per Square Millimetre to Megapascals
1 kilogram-force per square millimetre (kgf/mm²) = 9.80665 megapascals (MPa). 1 MPa = 0.1019716213 kgf/mm². Example: 41 kgf/mm² = 41 × 9.80665 = 402.07265 MPa.
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1 kgf/mm² = 9.80665 MPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilogram-force per square millimetre to megapascal converter to paste a column from Excel.
How to Convert Kilogram-force per Square Millimetre to Megapascal
- 1 kgf/mm² = 9.80665 MPa
- 1 MPa = 0.1019716213 kgf/mm²
- Example: convert 41 kgf/mm² to MPa: 41 kgf/mm² = 41 × 9.80665 MPa = 402.07265 MPa
Formula
MPa = kgf/mm² × 9.80665
Derivation from SI units:
- 1 kgf/mm² = 9.80665 N ÷ 1 mm² = 9.80665 MPa (exact)
- 1 MPa = 10⁶ Pa = 1 N/mm²
- 1 kgf/mm² = 9806650 Pa ÷ 1000000 Pa per MPa = 9.80665 MPa
Both units are defined exactly, so the factor is exact. Kilogram-force per Square Millimetre definition: kilogram-force per square millimetre; Megapascal definition: megapascal.
Worked examples
- An SS400 steel with a tensile strength of 41 kgf/mm² has 402.07265 MPa.
41 kgf/mm² × 9.80665 = 402.07265 MPa - A yield strength of 24 kgf/mm² is 235.3596 MPa.
24 kgf/mm² × 9.80665 = 235.3596 MPa
Kilogram-force per Square Millimetre to Megapascal conversion table
| Kilograms-force per Square Millimetre (kgf/mm²) | Megapascals (MPa) |
|---|---|
| 1 kgf/mm² | 9.80665 MPa |
| 5 kgf/mm² | 49.03325 MPa |
| 10 kgf/mm² | 98.0665 MPa |
| 20 kgf/mm² | 196.133 MPa |
| 24 kgf/mm² | 235.3596 MPa |
| 30 kgf/mm² | 294.1995 MPa |
| 36 kgf/mm² | 353.0394 MPa |
| 40 kgf/mm² | 392.266 MPa |
| 50 kgf/mm² | 490.3325 MPa |
| 60 kgf/mm² | 588.399 MPa |
| 80 kgf/mm² | 784.532 MPa |
| 100 kgf/mm² | 980.665 MPa |
| 120 kgf/mm² | 1176.798 MPa |
Where it's used
Tensile and yield strengths in kgf/mm² from older JIS, GB and DIN standards are converted to MPa. Multiply by exactly 9.80665.
Kilogram-force per Square Millimetre to other pressure units
| Conversion | 1 kgf/mm² equals |
|---|---|
| kilogram-force per square millimetre to megapascal | 9.80665 MPa |
| 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 ksi | 1.422334331 ksi |
| 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 |
Show 12 more units
| kilogram-force per square millimetre to inch of water | 39370.07874 inH₂O |
|---|---|
| kilogram-force per square millimetre to atmosphere | 96.78411054 atm |
| 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 MPa is 1 kgf/mm²?
Exactly 9.80665 MPa, using standard gravity.
How many megapascals are in 1 kilogram-force per square millimetre?
1 kgf/mm² = 9.80665 MPa.
How do I convert kilograms-force per square millimetre to megapascals?
Multiply the value in kgf/mm² by 9.80665. For example, 41 kgf/mm² × 9.80665 = 402.07265 MPa.
Is the kgf/mm² to MPa conversion exact?
Yes. Both units are defined exactly, and 1 kgf/mm² is exactly 9.80665 MPa.
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".
- 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 Kilograms-force per Square Millimetre to Megapascals. Retrieved October 25, 2026, from https://scientificconverters.com/pressure/kilogram-force-per-square-millimeter-to-megapascal/
IEEE
Scientific Converters, "Convert Kilograms-force per Square Millimetre to Megapascals," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/kilogram-force-per-square-millimeter-to-megapascal/