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Convert Kilogram-force per Square Centimeters to Gigapascals

Instantly convert Kilogram-force per Square Centimeters (kgf/cm²) to Gigapascals (GPa) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: kgf/cm² to GPamultiply by 9.8067e-5

Reference Table

Kilogram-force per Square Centimeters (kgf/cm²)Gigapascals (GPa)
10.0000980665
50.000490332
100.000980665
250.00245166
500.00490333
1000.00980665

How to Convert Kilogram-force per Square Centimeters to Gigapascals

Formula

To convert Kilogram-force per Square Centimeters (kgf/cm²) to Gigapascals (GPa): multiply by 9.8067e-5

Step-by-Step

  1. Start with your value in Kilogram-force per Square Centimeters (kgf/cm²).
  2. Multiply by 9.8067e-5 to perform the conversion.
  3. The result is your value expressed in Gigapascals (GPa).

Conversion Factor

1 kgf/cm² = 0.0000980665 GPa

Reverse Factor

1 GPa = 10197.2 kgf/cm²

Worked Example

Convert 25 Kilogram-force per Square Centimeters to Gigapascals: 25 kgf/cm² = 0.00245166 GPa

About Kilogram-force per Square Centimeter (kgf/cm²)

A legacy metric unit of pressure equal to one kilogram-force applied over one square centimeter, formally defined as exactly 98,066.5 Pa (using the standard acceleration of gravity g₀ = 9.80665 m/s² per CIPM Resolution 2, 1901). This is the "technical atmosphere" (symbol at) and is roughly equivalent to one standard atmosphere or one bar — but not exactly. Although superseded by SI-proper units (pascal, megapascal) under ISO 80000-4, kgf/cm² persists on industrial gauges in Japan, Korea, and parts of Eastern Europe; on older industrial machinery; on legacy pressure-vessel drawings (where the implicit assumption of g = 9.80665 m/s² matters); on tire-pressure data tables in some markets; and in older engineering textbooks. Engineers updating legacy documentation should be careful: the technical atmosphere (98,066.5 Pa) is NOT the same as the standard atmosphere (101,325 Pa). Converting kgf/cm² to MPa is divide by 10.197 (a clean approximation: ÷10.2); to psi is multiply by 14.223.

About Gigapascal (GPa)

A metric unit of pressure equal to exactly 1,000,000,000 pascals (1,000 MPa). Gigapascals are the standard unit for reporting elastic-modulus and material-stiffness properties — Young's modulus of structural steel is ~200-210 GPa, aluminum alloys ~69-72 GPa, titanium ~110 GPa, concrete ~25-35 GPa, single-crystal diamond ~1,050-1,200 GPa, and CFRP composite ~150-230 GPa (longitudinal). MatWeb, NIST's MMP database, and the ASM Handbook tabulate elastic constants in GPa. GPa is also the working unit for ultra-high-pressure scientific experiments: diamond-anvil cell measurements (currently extending past 1,000 GPa = 1 TPa for studies of metallic hydrogen and Earth-core conditions), shock-wave equation-of-state research at national labs (LANL, LLNL, Sandia), and geophysics interior models — Earth's outer core lies between roughly 135 and 330 GPa. 1 GPa = 10,000 bar = 145,038 psi.

Quick Facts

  • 1 Kilogram-force per Square Centimeter equals 0.0000980665 Gigapascals
  • 1 Gigapascal equals 10197.2 Kilogram-force per Square Centimeters
  • Kilogram-force per Square Centimeter is a unit of pressure
  • Gigapascal is a unit of pressure
  • This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
  • The Kilogram-force per Square Centimeter belongs to the metric system

Common Kilogram-force per Square Centimeter to Gigapascal Conversions

Kilogram-force per Square Centimeters (kgf/cm²)Gigapascals (GPa)
0.10.00000980665
0.50.0000490333
10.0000980665
20.000196133
50.000490332
100.000980665
14.6960.00144119
150.001471
200.00196133
250.00245166
500.00490333
1000.00980665
1500.01471
2000.0196133
5000.0490333
10000.0980665

Understanding Kilogram-force per Square Centimeters

The Kilogram-force per Square Centimeter (symbol: kgf/cm²) is a unit of pressure. A legacy metric unit of pressure equal to one kilogram-force applied over one square centimeter, formally defined as exactly 98,066.5 Pa (using the standard acceleration of gravity g₀ = 9.80665 m/s² per CIPM Resolution 2, 1901). This is the "technical atmosphere" (symbol at) and is roughly equivalent to one standard atmosphere or one bar — but not exactly. Although superseded by SI-proper units (pascal, megapascal) under ISO 80000-4, kgf/cm² persists on industrial gauges in Japan, Korea, and parts of Eastern Europe; on older industrial machinery; on legacy pressure-vessel drawings (where the implicit assumption of g = 9.80665 m/s² matters); on tire-pressure data tables in some markets; and in older engineering textbooks. Engineers updating legacy documentation should be careful: the technical atmosphere (98,066.5 Pa) is NOT the same as the standard atmosphere (101,325 Pa). Converting kgf/cm² to MPa is divide by 10.197 (a clean approximation: ÷10.2); to psi is multiply by 14.223.

It belongs to the metric measurement system.

Kilogram-force per Square Centimeters are commonly used in tire inflation, weather reporting, scuba diving, and engineering.

Understanding Gigapascals

The Gigapascal (symbol: GPa) is a unit of pressure. A metric unit of pressure equal to exactly 1,000,000,000 pascals (1,000 MPa). Gigapascals are the standard unit for reporting elastic-modulus and material-stiffness properties — Young's modulus of structural steel is ~200-210 GPa, aluminum alloys ~69-72 GPa, titanium ~110 GPa, concrete ~25-35 GPa, single-crystal diamond ~1,050-1,200 GPa, and CFRP composite ~150-230 GPa (longitudinal). MatWeb, NIST's MMP database, and the ASM Handbook tabulate elastic constants in GPa. GPa is also the working unit for ultra-high-pressure scientific experiments: diamond-anvil cell measurements (currently extending past 1,000 GPa = 1 TPa for studies of metallic hydrogen and Earth-core conditions), shock-wave equation-of-state research at national labs (LANL, LLNL, Sandia), and geophysics interior models — Earth's outer core lies between roughly 135 and 330 GPa. 1 GPa = 10,000 bar = 145,038 psi.

It belongs to the metric measurement system.

Gigapascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.

Why Convert Kilogram-force per Square Centimeters to Gigapascals?

Engineers, mechanics, and scientists frequently need to convert pressure between Kilogram-force per Square Centimeters and Gigapascals when working with different measurement standards. Tire pressure, blood pressure readings, weather barometric measurements, and industrial process specifications may all use different pressure units depending on the region or discipline. Reliable conversion prevents equipment misuse and ensures safety.

Frequently Asked Questions

How do I convert Kilogram-force per Square Centimeters to Gigapascals?

A legacy metric unit of pressure equal to one kilogram-force applied over one square centimeter, formally defined as exactly 98,066. To convert Kilogram-force per Square Centimeters to Gigapascals, multiply by 9.8067e-5. For example, 25 kgf/cm² equals 0.00245166 GPa.

How many Gigapascals are in 1 Kilogram-force per Square Centimeter?

There are 0.0000980665 Gigapascals in 1 Kilogram-force per Square Centimeter.

How many Kilogram-force per Square Centimeters are in 1 Gigapascal?

There are 10197.2 Kilogram-force per Square Centimeters in 1 Gigapascal.

What is the formula for Kilogram-force per Square Centimeter to Gigapascal conversion?

The formula is: multiply by 9.8067e-5. This means 1 kgf/cm² = 0.0000980665 GPa.

Is a Kilogram-force per Square Centimeter bigger than a Gigapascal?

Yes. One Kilogram-force per Square Centimeter is larger than one Gigapascal because 1 kgf/cm² equals 0.0000980665 GPa, which is less than 1.

When do you need to convert between Kilogram-force per Square Centimeters and Gigapascals?

A metric unit of pressure equal to exactly 1,000,000,000 pascals (1,000 MPa). Kilogram-force per Square Centimeter and Gigapascal are both pressure units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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