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Convert Torr to Kilogram-force per Square Centimeters

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

Reviewed by Christopher FloiedUpdated

Formula: torr to kgf/cm²multiply by 0.00135951

Reference Table

Torr (torr)Kilogram-force per Square Centimeters (kgf/cm²)
10.00135951
50.00679753
100.0135951
250.0339877
500.0679753
1000.135951

How to Convert Torr to Kilogram-force per Square Centimeters

Formula

To convert Torr (torr) to Kilogram-force per Square Centimeters (kgf/cm²): multiply by 0.00135951

Step-by-Step

  1. Start with your value in Torr (torr).
  2. Multiply by 0.00135951 to perform the conversion.
  3. The result is your value expressed in Kilogram-force per Square Centimeters (kgf/cm²).

Conversion Factor

1 torr = 0.00135951 kgf/cm²

Reverse Factor

1 kgf/cm² = 735.561 torr

Worked Example

Convert 25 Torr to Kilogram-force per Square Centimeters: 25 torr = 0.0339877 kgf/cm²

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 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 Although superseded by SI-proper units (pascal, megapascal) under ISO 80000-4, kgf/cm² persists on industrial gauges in Japan, Korea, and parts of Eastern Europe; on older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.

Quick Facts

  • 1 Torr equals 0.00135951 Kilogram-force per Square Centimeters
  • 1 Kilogram-force per Square Centimeter equals 735.561 Torr
  • Torr is a unit of pressure
  • Kilogram-force per Square Centimeter 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 Torr to Kilogram-force per Square Centimeter Conversions

Torr (torr)Kilogram-force per Square Centimeters (kgf/cm²)
0.10.000135951
0.50.000679753
10.00135951
20.00271901
50.00679753
100.0135951
14.6960.0199793
150.0203926
200.0271901
250.0339877
500.0679753
1000.135951
1500.203926
2000.271901
5000.679753
10001.35951

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 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.

Why Convert Torr to Kilogram-force per Square Centimeters?

Engineers, mechanics, and scientists frequently need to convert pressure between Torr and Kilogram-force per Square Centimeters 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 Kilogram-force per Square Centimeters?

A unit of pressure defined as exactly 1/760 of a standard atmosphere (≈ 133. To convert Torr to Kilogram-force per Square Centimeters, multiply by 0.00135951. For example, 25 torr equals 0.0339877 kgf/cm².

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

There are 0.00135951 Kilogram-force per Square Centimeters in 1 Torr.

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

There are 735.561 Torr in 1 Kilogram-force per Square Centimeter.

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

The formula is: multiply by 0.00135951. This means 1 torr = 0.00135951 kgf/cm².

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

Yes. One Torr is larger than one Kilogram-force per Square Centimeter because 1 torr equals 0.00135951 kgf/cm², which is less than 1.

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

A legacy metric unit of pressure equal to one kilogram-force applied over one square centimeter, formally defined as exactly 98,066. Torr and Kilogram-force per Square Centimeter 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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