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Convert Torr to Gigapascals

Instantly convert Torr (torr) to Gigapascals (GPa) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: torr to GPamultiply by 1.3332e-7

Reference Table

Torr (torr)Gigapascals (GPa)
11.333220e-7
56.666100e-7
100.00000133322
250.00000333305
500.0000066661
1000.0000133322

How to Convert Torr to Gigapascals

Formula

To convert Torr (torr) to Gigapascals (GPa): multiply by 1.3332e-7

Step-by-Step

  1. Start with your value in Torr (torr).
  2. Multiply by 1.3332e-7 to perform the conversion.
  3. The result is your value expressed in Gigapascals (GPa).

Conversion Factor

1 torr = 1.333220e-7 GPa

Reverse Factor

1 GPa = 7500640 torr

Worked Example

Convert 25 Torr to Gigapascals: 25 torr = 0.00000333305 GPa

About Torr (torr)

A unit of pressure defined as exactly 1/760 of a standard atmosphere (≈ 133.322 Pa). Named after 17th-century physicist Evangelista Torricelli, who in 1643 invented the mercury barometer while studying why suction-lift pumps fail above ~10 m — establishing that the atmosphere itself has weight. The torr is the primary unit in modern vacuum technology and semiconductor fabrication: a "rough vacuum" is ~1 torr, "medium vacuum" 10⁻³ torr (typical of mechanical-pump-only systems), "high vacuum" 10⁻⁶ torr (achievable with turbomolecular pumps, used in mass spectrometry and electron microscopy), and "ultrahigh vacuum" (UHV) 10⁻⁹ torr or lower (semiconductor MBE, surface science, particle accelerators). Manufacturing fabs quote chamber pressures in torr or mTorr (10⁻³ torr) at every process step. Numerically the torr is almost identical to the mmHg (1 torr ≈ 1.000000 mmHg under modern definitions; historically they differed by 0.000015%).

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 Torr equals 1.333220e-7 Gigapascals
  • 1 Gigapascal equals 7500640 Torr
  • Torr 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 Gigapascal belongs to the metric system

Common Torr to Gigapascal Conversions

Torr (torr)Gigapascals (GPa)
0.11.333220e-8
0.56.666100e-8
11.333220e-7
22.666440e-7
56.666100e-7
100.00000133322
14.6960.0000019593
150.00000199983
200.00000266644
250.00000333305
500.0000066661
1000.0000133322
1500.0000199983
2000.0000266644
5000.000066661
10000.000133322

Understanding Torr

The Torr (symbol: torr) is a unit of pressure. A unit of pressure defined as exactly 1/760 of a standard atmosphere (≈ 133.322 Pa). Named after 17th-century physicist Evangelista Torricelli, who in 1643 invented the mercury barometer while studying why suction-lift pumps fail above ~10 m — establishing that the atmosphere itself has weight. The torr is the primary unit in modern vacuum technology and semiconductor fabrication: a "rough vacuum" is ~1 torr, "medium vacuum" 10⁻³ torr (typical of mechanical-pump-only systems), "high vacuum" 10⁻⁶ torr (achievable with turbomolecular pumps, used in mass spectrometry and electron microscopy), and "ultrahigh vacuum" (UHV) 10⁻⁹ torr or lower (semiconductor MBE, surface science, particle accelerators). Manufacturing fabs quote chamber pressures in torr or mTorr (10⁻³ torr) at every process step. Numerically the torr is almost identical to the mmHg (1 torr ≈ 1.000000 mmHg under modern definitions; historically they differed by 0.000015%).

Torr 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 Torr to Gigapascals?

Engineers, mechanics, and scientists frequently need to convert pressure between Torr 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 Torr to Gigapascals?

A unit of pressure defined as exactly 1/760 of a standard atmosphere (≈ 133. To convert Torr to Gigapascals, multiply by 1.3332e-7. For example, 25 torr equals 0.00000333305 GPa.

How many Gigapascals are in 1 Torr?

There are 1.333220e-7 Gigapascals in 1 Torr.

How many Torr are in 1 Gigapascal?

There are 7500640 Torr in 1 Gigapascal.

What is the formula for Torr to Gigapascal conversion?

The formula is: multiply by 1.3332e-7. This means 1 torr = 1.333220e-7 GPa.

Is a Torr bigger than a Gigapascal?

Yes. One Torr is larger than one Gigapascal because 1 torr equals 1.333220e-7 GPa, which is less than 1.

When do you need to convert between Torr and Gigapascals?

A metric unit of pressure equal to exactly 1,000,000,000 pascals (1,000 MPa). Torr 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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