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Kilopound per Square Inch to Kilogram-force per Square Centimeter Converter

Convert kilopounds per square inch to kilograms-force per square centimeter with our free online pressure converter.

Quick Answer

1 Kilopound per Square Inch = 70.306958 kilograms-force per square centimeter

Formula: Kilopound per Square Inch × conversion factor = Kilogram-force per Square Centimeter

Use the calculator below for instant, accurate conversions.

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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: December 2025Reviewed by: Sam Mathew, Software Engineer

Kilopound per Square Inch to Kilogram-force per Square Centimeter Calculator

How to Use the Kilopound per Square Inch to Kilogram-force per Square Centimeter Calculator:

  1. Enter the value you want to convert in the 'From' field (Kilopound per Square Inch).
  2. The converted value in Kilogram-force per Square Centimeter will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Pressure category.
  4. Click the swap button (⇌) to reverse the conversion direction.
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How to Convert Kilopound per Square Inch to Kilogram-force per Square Centimeter: Step-by-Step Guide

Converting Kilopound per Square Inch to Kilogram-force per Square Centimeter involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

kgf/cm² = ksi × 70.307

Example Calculation:

1 ksi = 70.306958 kgf/cm²

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

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What is a Kilopound per Square Inch and a Kilogram-force per Square Centimeter?

1 ksi = 1,000 PSI = 6.895 MPa = 68.95 bar = 6,895 kPa = 47.88 atm

ksi = kilo-pound per square inch = 1,000 pounds-force per square inch

Also written as: KSI, 1000 PSI, 1 KPSI

1 kgf/cm² = 98,066.5 Pa = 98.0665 kPa = 0.980665 bar = 0.0981 MPa = 14.2233 PSI = 0.9678 atm

Also written as: kg/cm², at (technical atmosphere), kgf/cm2, kg-f/cm²

Physical meaning: Pressure exerted by 1 kilogram-force over 1 square centimeter

Note: The Kilopound per Square Inch is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kilogram-force per Square Centimeter belongs to the imperial/US customary system.

Common Uses and Applications: kilopounds per square inch vs kilograms-force per square centimeter

Explore the typical applications for both Kilopound per Square Inch (imperial/US) and Kilogram-force per Square Centimeter (imperial/US) to understand their common contexts.

Common Uses for kilopounds per square inch

Structural Steel: Yield strength, tensile strength specifications (AISC standards). Concrete: Compressive strength testing, design specs. Materials Testing: Tensile testing, compression testing. High-Pressure Systems: Hydraulics, pressure vessels, extreme pressures.

When to Use kilograms-force per square centimeter

Older Engineering: Equipment specifications from pre-1980s. Hydraulics: Older hydraulic systems (Europe, Asia). HVAC: Refrigeration pressures (some regions). Asian Industries: Still common in China, India, Japan for some applications.

Additional Unit Information

About Kilopound per Square Inch (ksi)

How do I convert ksi to MPa?

Formula: MPa = ksi × 6.895

Examples:

  • 36 ksi = 248 MPa (A36 steel)
  • 50 ksi = 345 MPa (A992 steel)
  • 60 ksi = 414 MPa (rebar)
  • 100 ksi = 689 MPa (high-strength)
  • 1 ksi = 6.895 MPa

ksi to MPa converter →

What does "36 ksi steel" mean?

36 ksi = yield strength of structural steel

A36 Steel (most common structural):

  • Yield strength: 36,000 PSI = 36 ksi = 248 MPa
  • Tensile strength: 58-80 ksi (ultimate strength before breaking)
  • Applications: Beams, columns, general construction

Yield strength: Stress at which permanent deformation begins Tensile strength: Maximum stress before failure

Common grades:

  • A36: 36 ksi (older standard, still common)
  • A572 Grade 50: 50 ksi (modern standard)
  • A992: 50 ksi yield (I-beams, wide flanges)

How do I convert ksi to PSI?

Formula: PSI = ksi × 1,000

Examples:

  • 1 ksi = 1,000 PSI
  • 36 ksi = 36,000 PSI (A36 steel)
  • 50 ksi = 50,000 PSI (A992 steel)
  • 4 ksi = 4,000 PSI (concrete)
  • 0.1 ksi = 100 PSI

Why use ksi?: Simpler than writing "36,000 PSI"—say "36 ksi" instead

What is typical concrete strength in ksi?

Residential/Light commercial:

  • Sidewalks, patios: 3 ksi (3,000 PSI)
  • Garage floors, driveways: 3.5-4 ksi
  • Foundation slabs: 3-4 ksi

Commercial:

  • Commercial floors: 4-5 ksi
  • Parking structures: 4-5 ksi
  • Warehouse slabs: 5-6 ksi

Structural:

  • Columns, beams: 5-8 ksi
  • High-rise buildings: 8-14 ksi
  • Bridge elements: 4-6 ksi

Special:

  • Precast prestressed: 5-10 ksi
  • Ultra-high performance: 20-30 ksi

Note: Concrete strength measured at 28 days after pouring

Why does US use ksi instead of MPa?

Historical: US construction industry established with imperial units Standards: AISC, ACI, ASTM all specify ksi Training: US engineers educated with ksi Continuity: Existing specs, calculations, tables in ksi Conversion: 1 ksi ≈ 7 MPa (approximate, easy mental math)

Rest of world: Uses MPa (SI standard)

  • 36 ksi = 248 MPa (A36 steel equivalent)
  • 50 ksi = 345 MPa (common grade)

Dual labeling: International projects often show both units

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

How do I convert kgf/cm² to bar?

Formula: bar = kgf/cm² × 0.980665

Quick approximation: 1 kgf/cm² ≈ 1 bar (2% difference)

Exact examples:

  • 1 kgf/cm² = 0.981 bar
  • 2 kgf/cm² = 1.961 bar
  • 5 kgf/cm² = 4.903 bar
  • 10 kgf/cm² = 9.807 bar
  • 100 kgf/cm² = 98.07 bar

Inverse: 1 bar = 1.0197 kgf/cm²

kgf/cm² to Bar converter →

How do I convert kgf/cm² to PSI?

Formula: PSI = kgf/cm² × 14.2233

Examples:

  • 1 kgf/cm² = 14.22 PSI
  • 2 kgf/cm² = 28.45 PSI
  • 5 kgf/cm² = 71.12 PSI
  • 10 kgf/cm² = 142.23 PSI
  • 100 kgf/cm² = 1,422.33 PSI

Inverse: 1 PSI = 0.0703 kgf/cm²

kgf/cm² to PSI converter →

How do I convert kgf/cm² to kPa or MPa?

Formula: kPa = kgf/cm² × 98.0665

Examples:

  • 1 kgf/cm² = 98.07 kPa = 0.0981 MPa
  • 5 kgf/cm² = 490.3 kPa = 0.490 MPa
  • 10 kgf/cm² = 980.7 kPa = 0.981 MPa
  • 50 kgf/cm² = 4,903 kPa = 4.90 MPa
  • 100 kgf/cm² = 9,807 kPa = 9.81 MPa

Quick rule: Multiply by ~100 to get kPa, divide by ~10 to get MPa

kgf/cm² to kPa converter → kgf/cm² to MPa converter →

What is the difference between kgf/cm² and kg/cm²?

Same unit: kgf/cm² and kg/cm² refer to the same thing

kgf/cm² (kilogram-force per square centimeter):

  • Technically correct notation
  • "kgf" explicitly indicates force, not mass
  • Clearer in scientific context

kg/cm² (kilogram per square centimeter):

  • Shorthand notation
  • Technically incorrect (kg is mass, not force)
  • Commonly used in industry, understood to mean kgf/cm²

In practice: Both notations used interchangeably. Context makes meaning clear.

Why is this unit not used anymore?

SI adoption (1970s-1980s): Most countries transitioned to SI units Ambiguity: "kg" is mass unit, not force (causes confusion) Gravity dependence: kgf assumes standard gravity (9.80665 m/s²) Better alternatives: Bar, kPa, MPa clearer and SI-compliant

Modern replacements:

  • Bar: Easy conversion (1 kgf/cm² ≈ 1 bar)
  • kPa: SI standard for tire pressure
  • MPa: SI standard for high pressures, material strength

Still seen:

  • Older equipment specifications
  • Some Asian manufacturing (China, India, Japan)
  • Historical engineering documents
  • Legacy pressure gauges

Conversion tip: For quick estimates, treat 1 kgf/cm² as approximately 1 bar or 14 PSI.

Conversion Table: Kilopound per Square Inch to Kilogram-force per Square Centimeter

Kilopound per Square Inch (ksi)Kilogram-force per Square Centimeter (kgf/cm²)
0.535.154
170.307
1.5105.46
2140.614
5351.535
10703.07
251,757.674
503,515.348
1007,030.696
25017,576.74
50035,153.479
1,00070,306.958

People Also Ask

How do I convert Kilopound per Square Inch to Kilogram-force per Square Centimeter?

To convert Kilopound per Square Inch to Kilogram-force per Square Centimeter, enter the value in Kilopound per Square Inch in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our pressure converter page to convert between other units in this category.

Learn more →

What is the conversion factor from Kilopound per Square Inch to Kilogram-force per Square Centimeter?

The conversion factor depends on the specific relationship between Kilopound per Square Inch and Kilogram-force per Square Centimeter. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Kilogram-force per Square Centimeter back to Kilopound per Square Inch?

Yes! You can easily convert Kilogram-force per Square Centimeter back to Kilopound per Square Inch by using the swap button (⇌) in the calculator above, or by visiting our Kilogram-force per Square Centimeter to Kilopound per Square Inch converter page. You can also explore other pressure conversions on our category page.

Learn more →

What are common uses for Kilopound per Square Inch and Kilogram-force per Square Centimeter?

Kilopound per Square Inch and Kilogram-force per Square Centimeter are both standard units used in pressure measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our pressure converter for more conversion options.

For more pressure conversion questions, visit our FAQ page or explore our conversion guides.

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All Pressure Conversions

Pascal to KilopascalPascal to MegapascalPascal to HectopascalPascal to BarPascal to MillibarPascal to AtmospherePascal to Technical AtmospherePascal to TorrPascal to Millimeter of MercuryPascal to Inch of MercuryPascal to Pound per Square InchPascal to Kilopound per Square InchPascal to Kilogram-force per Square CentimeterPascal to Kilogram-force per Square MeterPascal to Millimeter of Water ColumnPascal to Inch of Water ColumnKilopascal to PascalKilopascal to MegapascalKilopascal to HectopascalKilopascal to BarKilopascal to MillibarKilopascal to AtmosphereKilopascal to Technical AtmosphereKilopascal to TorrKilopascal to Millimeter of MercuryKilopascal to Inch of MercuryKilopascal to Pound per Square InchKilopascal to Kilopound per Square InchKilopascal to Kilogram-force per Square CentimeterKilopascal to Kilogram-force per Square MeterKilopascal to Millimeter of Water ColumnKilopascal to Inch of Water ColumnMegapascal to PascalMegapascal to KilopascalMegapascal to HectopascalMegapascal to BarMegapascal to MillibarMegapascal to AtmosphereMegapascal to Technical AtmosphereMegapascal to TorrMegapascal to Millimeter of MercuryMegapascal to Inch of MercuryMegapascal to Pound per Square InchMegapascal to Kilopound per Square InchMegapascal to Kilogram-force per Square CentimeterMegapascal to Kilogram-force per Square MeterMegapascal to Millimeter of Water ColumnMegapascal to Inch of Water ColumnHectopascal to PascalHectopascal to KilopascalHectopascal to MegapascalHectopascal to BarHectopascal to MillibarHectopascal to AtmosphereHectopascal to Technical AtmosphereHectopascal to TorrHectopascal to Millimeter of MercuryHectopascal to Inch of MercuryHectopascal to Pound per Square InchHectopascal to Kilopound per Square InchHectopascal to Kilogram-force per Square CentimeterHectopascal to Kilogram-force per Square MeterHectopascal to Millimeter of Water ColumnHectopascal to Inch of Water ColumnBar to PascalBar to KilopascalBar to MegapascalBar to HectopascalBar to MillibarBar to AtmosphereBar to Technical AtmosphereBar to TorrBar to Millimeter of MercuryBar to Inch of MercuryBar to Pound per Square InchBar to Kilopound per Square InchBar to Kilogram-force per Square CentimeterBar to Kilogram-force per Square MeterBar to Millimeter of Water ColumnBar to Inch of Water ColumnMillibar to PascalMillibar to KilopascalMillibar to MegapascalMillibar to HectopascalMillibar to BarMillibar to AtmosphereMillibar to Technical AtmosphereMillibar to TorrMillibar to Millimeter of MercuryMillibar to Inch of MercuryMillibar to Pound per Square InchMillibar to Kilopound per Square InchMillibar to Kilogram-force per Square CentimeterMillibar to Kilogram-force per Square MeterMillibar to Millimeter of Water ColumnMillibar to Inch of Water ColumnAtmosphere to PascalAtmosphere to KilopascalAtmosphere to MegapascalAtmosphere to HectopascalAtmosphere to BarAtmosphere to MillibarAtmosphere to Technical AtmosphereAtmosphere to TorrAtmosphere to Millimeter of MercuryAtmosphere to Inch of MercuryAtmosphere to Pound per Square InchAtmosphere to Kilopound per Square InchAtmosphere to Kilogram-force per Square CentimeterAtmosphere to Kilogram-force per Square MeterAtmosphere to Millimeter of Water ColumnAtmosphere to Inch of Water ColumnTechnical Atmosphere to PascalTechnical Atmosphere to KilopascalTechnical Atmosphere to MegapascalTechnical Atmosphere to HectopascalTechnical Atmosphere to BarTechnical Atmosphere to MillibarTechnical Atmosphere to AtmosphereTechnical Atmosphere to Torr

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Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Reference on Constants, Units and Uncertainty

National Institute of Standards and Technology — Fundamental physical constants and unit conversions

BIPM SI Units

Bureau International des Poids et Mesures — International System of Units (SI) definitions and standards

ISO 80000

International Organization for Standardization — Quantities and units international standards series

Last verified: December 3, 2025