Convert Gigapascals to Kilograms-force per Square Millimetre
1 gigapascal (GPa) = 101.9716213 kilograms-force per square millimetre (kgf/mm²). 1 kgf/mm² = 0.00980665 GPa. Example: 15 GPa = 15 × 101.9716213 = 1529.574319 kgf/mm².
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1 GPa = 101.9716213 kgf/mm²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigapascal to kilogram-force per square millimetre converter to paste a column from Excel.
How to Convert Gigapascal to Kilogram-force per Square Millimetre
- 1 GPa = 101.9716213 kgf/mm²
- 1 kgf/mm² = 0.00980665 GPa
- Example: convert 15 GPa to kgf/mm²: 15 GPa = 15 × 101.9716213 kgf/mm² = 1529.574319 kgf/mm²
Formula
kgf/mm² = GPa × 101.9716212978
Derivation from SI units:
- 1 GPa = 10⁹ Pa = 1000 MPa = 1 kN/mm²
- 1 kgf/mm² = 9.80665 N ÷ 1 mm² = 9.80665 MPa (exact)
- 1 GPa = 1000000000 Pa ÷ 9806650 Pa per kgf/mm² = 101.9716212978 kgf/mm²
Both units are defined exactly, so the factor is exact. Gigapascal definition: gigapascal; Kilogram-force per Square Millimetre definition: kilogram-force per square millimetre.
Worked examples
- A reading of 10 GPa converts to 1019.716213 kgf/mm².
10 GPa × 101.9716213 = 1019.716213 kgf/mm² - A value of 190 GPa is 19374.60805 kgf/mm².
190 GPa × 101.9716213 = 19374.60805 kgf/mm²
Gigapascal to Kilogram-force per Square Millimetre conversion table
| Gigapascals (GPa) | Kilograms-force per Square Millimetre (kgf/mm²) |
|---|---|
| 0.5 GPa | 50.98581065 kgf/mm² |
| 1 GPa | 101.9716213 kgf/mm² |
| 2 GPa | 203.9432426 kgf/mm² |
| 3 GPa | 305.9148639 kgf/mm² |
| 5 GPa | 509.8581065 kgf/mm² |
| 10 GPa | 1019.716213 kgf/mm² |
| 45 GPa | 4588.722958 kgf/mm² |
| 70 GPa | 7138.013491 kgf/mm² |
| 110 GPa | 11216.87834 kgf/mm² |
| 117 GPa | 11930.67969 kgf/mm² |
| 190 GPa | 19374.60805 kgf/mm² |
| 200 GPa | 20394.32426 kgf/mm² |
| 210 GPa | 21414.04047 kgf/mm² |
| 400 GPa | 40788.64852 kgf/mm² |
| 1000 GPa | 101971.6213 kgf/mm² |
Where it's used
Gigapascals are used for young's modulus and shear modulus of metals, ceramics and composites, while kilograms-force per square millimetre appear in tensile strength in older JIS and GB steel standards. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Gigapascal to other pressure units
| Conversion | 1 GPa equals |
|---|---|
| gigapascal to kilogram-force per square millimetre | 101.9716213 kgf/mm² |
| gigapascal to pascal | 1000000000 Pa |
| gigapascal to kilopascal | 1000000 kPa |
| gigapascal to ksi | 145.0377377 ksi |
| gigapascal to kilogram-force per square centimetre | 10197.16213 kgf/cm² |
| gigapascal to psi | 145037.7377 psi |
| gigapascal to bar | 10000 bar |
| gigapascal to millimeter of mercury | 7500615.758 mmHg |
Show 12 more units
| gigapascal to inch of water | 4014630.76 inH₂O |
|---|---|
| gigapascal to atmosphere | 9869.232667 atm |
| gigapascal to megapascal | 1000 MPa |
| gigapascal to newton per square millimetre | 1000 N/mm² |
| gigapascal to millibar | 10000000 mbar |
| gigapascal to torr | 7500616.827 Torr |
| gigapascal to millimeter of water | 101971621.3 mmH₂O |
| gigapascal to centimeter of water | 10197162.13 cmH₂O |
| gigapascal to inch of mercury | 295299.833 inHg |
| gigapascal to decibar | 100000 dbar |
| gigapascal to inch of water (60 °F) | 4018646.52 inH₂O (60 °F) |
| gigapascal to barye | 10000000000 Ba |
Frequently asked questions
How many kilograms-force per square millimetre are in 1 gigapascal?
1 GPa = 101.9716213 kgf/mm².
How do I convert gigapascals to kilograms-force per square millimetre?
Multiply the value in GPa by 101.9716213. For example, 15 GPa × 101.9716213 = 1529.574319 kgf/mm².
Is the GPa to kgf/mm² 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
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- 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".
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 Gigapascals to Kilograms-force per Square Millimetre. Retrieved October 25, 2026, from https://scientificconverters.com/pressure/gigapascal-to-kilogram-force-per-square-millimeter/
IEEE
Scientific Converters, "Convert Gigapascals to Kilograms-force per Square Millimetre," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/gigapascal-to-kilogram-force-per-square-millimeter/