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

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

Quick Answer

1 Kilopound per Square Inch = 703069.579639 kilograms-force per square meter

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

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

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: February 2026Reviewed by: Sam Mathew, Software Engineer

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

How to Use the Kilopound per Square Inch to Kilogram-force per Square Meter 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 Meter 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 Meter: Step-by-Step Guide

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

Formula:

kgf/m² = ksi × 703070

Example Calculation:

1 ksi = 703069.579639 kgf/m²

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 Meter?

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/m² = 9.807 Pa = 0.009807 kPa = 0.09807 mbar = 0.001422 PSI = 0.0736 mmHg

Also written as: kg/m², kgf·m⁻², kilogram-force per square meter

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

Relationship to other kgf units:

  • 10,000 kgf/m² = 1 kgf/cm² (technical atmosphere)
  • 1 kgf/m² = 1 mm water column (approximately)

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 Meter belongs to the imperial/US customary system.

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

Explore the typical applications for both Kilopound per Square Inch (imperial/US) and Kilogram-force per Square Meter (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 meter

Obsolete: Rarely used in modern engineering. Historical Documents: May appear in pre-1980s European/Soviet technical literature. Confusion Source: Sometimes mistaken for Pascal in old documents.

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 Meter (kgf/m²)

How do I convert kgf/m² to Pa or kPa?

Formula: Pa = kgf/m² × 9.807

Examples:

  • 1 kgf/m² = 9.807 Pa ≈ 10 Pa
  • 10 kgf/m² = 98.07 Pa ≈ 0.1 kPa
  • 100 kgf/m² = 980.7 Pa ≈ 1 kPa
  • 1,000 kgf/m² = 9,807 Pa ≈ 10 kPa

Quick approximation: Multiply by 10 to get Pa (2% error)

kgf/m² to Pascal converter →

Is kgf/m² the same as Pascal?

No! But numerically close (common source of confusion)

kgf/m² (kilogram-force per square meter):

  • 1 kgf/m² = 9.807 Pa
  • Gravitational unit (depends on Earth's gravity)
  • Obsolete, not SI-compliant

Pa (Pascal = Newton per square meter):

  • 1 Pa = 1 N/m²
  • SI unit (independent of gravity)
  • Modern standard

Why confusion?:

  • Values similar in magnitude (differ by factor ~10)
  • Old documents sometimes mislabeled Pa as "kg/m²"
  • Both measure pressure

To clarify: If document says "kg/m²", determine if it means:

  • kgf/m² (multiply by 9.807 to get Pa)
  • Pa (mislabeled, use value directly)

How does kgf/m² relate to kgf/cm²?

1 kgf/cm² = 10,000 kgf/m² (factor of 10,000)

kgf/cm² (technical atmosphere):

  • High pressures (hydraulics, materials)
  • 1 kgf/cm² = 98,066.5 Pa ≈ 1 bar
  • Still used in some Asian countries

kgf/m²:

  • Very low pressures
  • 1 kgf/m² = 9.807 Pa
  • Almost completely obsolete

Conversion:

  • 1 kgf/cm² = 10,000 kgf/m²
  • (100 cm)² = 10,000 cm² per m²

Why is this unit not used anymore?

SI adoption (1970s-1980s): Countries switched to SI units (Pa, kPa, MPa)

Problems with kgf units:

  • Ambiguity: "kg" is mass, not force (requires "kgf" clarification)
  • Gravity dependence: Assumes standard gravity (9.80665 m/s²)
  • Confusion: Easy to mistake for Pascal or mass-per-area
  • Obsolete: No modern instruments calibrated in kgf/m²

Modern replacement: Pascal (Pa) and multiples

  • 1 kgf/m² → 10 Pa (approximately)
  • 100 kgf/m² → 1 kPa
  • 1,000 kgf/m² → 10 kPa

Where still seen:

  • Very old technical manuals (pre-1980s)
  • Historical scientific papers
  • Soviet/Russian legacy documents

Should I convert old kgf/m² values?

Yes, for modern use convert to Pa or kPa

Conversion steps:

  1. Identify if unit truly kgf/m² (check context, date)
  2. Multiply by 9.807 to get Pascals
  3. Convert to appropriate modern unit (Pa, kPa, mbar)

Example:

  • Old spec: "Building pressure 5 kgf/m²"
  • Convert: 5 × 9.807 = 49 Pa ≈ 0.5 mbar
  • Modern: "Building pressure 50 Pa" or "0.5 mbar"

Watch for mislabeling: Some old documents used "kg/m²" when they meant Pa—double-check with other values in document to confirm.

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

Kilopound per Square Inch (ksi)Kilogram-force per Square Meter (kgf/m²)
0.5351,534.79
1703,069.58
1.51,054,604.37
21,406,139.159
53,515,347.898
107,030,695.796
2517,576,739.491
5035,153,478.982
10070,306,957.964
250175,767,394.91
500351,534,789.82
1,000703,069,579.639

People Also Ask

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

To convert Kilopound per Square Inch to Kilogram-force per Square Meter, 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 Meter?

The conversion factor depends on the specific relationship between Kilopound per Square Inch and Kilogram-force per Square Meter. 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 Meter back to Kilopound per Square Inch?

Yes! You can easily convert Kilogram-force per Square Meter back to Kilopound per Square Inch by using the swap button (⇌) in the calculator above, or by visiting our Kilogram-force per Square Meter 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 Meter?

Kilopound per Square Inch and Kilogram-force per Square Meter 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: February 19, 2026