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Convert Kilonewtons to Kilograms-force

Instantly convert Kilonewtons (kN) to Kilograms-force (kgf) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: kN to kgfmultiply by 101.972

Reference Table

Kilonewtons (kN)Kilograms-force (kgf)
1101.972
5509.858
101019.72
252549.29
505098.58
10010197.2

How to Convert Kilonewtons to Kilograms-force

Formula

To convert Kilonewtons (kN) to Kilograms-force (kgf): multiply by 101.972

Step-by-Step

  1. Start with your value in Kilonewtons (kN).
  2. Multiply by 101.972 to perform the conversion.
  3. The result is your value expressed in Kilograms-force (kgf).

Conversion Factor

1 kN = 101.972 kgf

Reverse Factor

1 kgf = 0.00980665 kN

Worked Example

Convert 25 Kilonewtons to Kilograms-force: 25 kN = 2549.29 kgf

About Kilonewton (kN)

A metric unit of force equal to exactly 1,000 newtons. The kilonewton is the working unit for structural-engineering loads worldwide except in the United States: beam reactions and column loads in Eurocode 1-7 (EN 1991), cable tensions in cable-stayed bridges and pre-stressed concrete, crane working-load-limit (WLL) markings, bolted-connection capacities (M16 Grade 10.9 has a ~106 kN tensile capacity per EN 1993-1-8), elevator suspension rope safety factors, and the impact loads in EN 1992 / Eurocode 2 reinforced-concrete design. Most ISO and DIN structural standards quote permissible loads in kN. Reference values: a small passenger car weighs ~15 kN, a fully-laden semi-trailer truck 350-400 kN, a typical Class C cargo crane WLL 50-200 kN, a Boeing 777 maximum takeoff weight ~3,500 kN. Convert kN to kips by dividing by 4.448; to tonnes-force by dividing by 9.807.

About Kilogram-force (kgf)

A legacy metric unit of force equal to the gravitational pull on a 1-kilogram mass at the standard acceleration of gravity g₀ = 9.80665 m/s² (CIPM Resolution 2, 1901), giving exactly 9.80665 N per kgf. Although officially deprecated in favor of the newton under ISO 80000-4 and BIPM SI Brochure §5.4.1, kgf persists in identifiable contexts: tire-pressure gauges in some European countries (a tire pressure of "2.2 kgf/cm²" appears on Russian and Eastern-European specs), industrial-press tonnage ratings expressed in tonnes-force (where 1 tf = 1,000 kgf = 9.80665 kN), cable-tension and lifting-equipment markings in Japanese and older Soviet/Russian engineering drawings, legacy ASME pressure-vessel international-equivalence tables, and motorcycle/bicycle gear-train torque ratings in older European literature. Converting kgf to newtons is multiply by exactly 9.80665; to lbf is multiply by 2.2046.

Quick Facts

  • 1 Kilonewton equals 101.972 Kilograms-force
  • 1 Kilogram-force equals 0.00980665 Kilonewtons
  • Kilonewton is a unit of force
  • Kilogram-force is a unit of force
  • This conversion is commonly used in structural engineering, physics, and mechanical design
  • The Kilonewton belongs to the metric system

Common Kilonewton to Kilogram-force Conversions

Kilonewtons (kN)Kilograms-force (kgf)
0.011.01972
0.110.1972
0.2525.4929
0.550.9858
1101.972
2203.943
3305.915
5509.858
101019.72
151529.57
202039.43
252549.29
505098.58
757647.87
10010197.2
25025492.9
50050985.8
1000101972
5000509858
100001019720

Understanding Kilonewtons

The Kilonewton (symbol: kN) is a unit of force. A metric unit of force equal to exactly 1,000 newtons. The kilonewton is the working unit for structural-engineering loads worldwide except in the United States: beam reactions and column loads in Eurocode 1-7 (EN 1991), cable tensions in cable-stayed bridges and pre-stressed concrete, crane working-load-limit (WLL) markings, bolted-connection capacities (M16 Grade 10.9 has a ~106 kN tensile capacity per EN 1993-1-8), elevator suspension rope safety factors, and the impact loads in EN 1992 / Eurocode 2 reinforced-concrete design. Most ISO and DIN structural standards quote permissible loads in kN. Reference values: a small passenger car weighs ~15 kN, a fully-laden semi-trailer truck 350-400 kN, a typical Class C cargo crane WLL 50-200 kN, a Boeing 777 maximum takeoff weight ~3,500 kN. Convert kN to kips by dividing by 4.448; to tonnes-force by dividing by 9.807.

It belongs to the metric measurement system.

Kilonewtons are commonly used in structural engineering, physics, and mechanical design.

Understanding Kilograms-force

The Kilogram-force (symbol: kgf) is a unit of force. A legacy metric unit of force equal to the gravitational pull on a 1-kilogram mass at the standard acceleration of gravity g₀ = 9.80665 m/s² (CIPM Resolution 2, 1901), giving exactly 9.80665 N per kgf. Although officially deprecated in favor of the newton under ISO 80000-4 and BIPM SI Brochure §5.4.1, kgf persists in identifiable contexts: tire-pressure gauges in some European countries (a tire pressure of "2.2 kgf/cm²" appears on Russian and Eastern-European specs), industrial-press tonnage ratings expressed in tonnes-force (where 1 tf = 1,000 kgf = 9.80665 kN), cable-tension and lifting-equipment markings in Japanese and older Soviet/Russian engineering drawings, legacy ASME pressure-vessel international-equivalence tables, and motorcycle/bicycle gear-train torque ratings in older European literature. Converting kgf to newtons is multiply by exactly 9.80665; to lbf is multiply by 2.2046.

It belongs to the metric measurement system.

Kilograms-force are commonly used in structural engineering, physics, and mechanical design.

Why Convert Kilonewtons to Kilograms-force?

Converting between Kilonewtons and Kilograms-force is a frequent requirement for engineers, scientists, and students working with force values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate force conversion is essential.

Frequently Asked Questions

How do I convert Kilonewtons to Kilograms-force?

A metric unit of force equal to exactly 1,000 newtons. To convert Kilonewtons to Kilograms-force, multiply by 101.972. For example, 25 kN equals 2549.29 kgf.

How many Kilograms-force are in 1 Kilonewton?

There are 101.972 Kilograms-force in 1 Kilonewton.

How many Kilonewtons are in 1 Kilogram-force?

There are 0.00980665 Kilonewtons in 1 Kilogram-force.

What is the formula for Kilonewton to Kilogram-force conversion?

The formula is: multiply by 101.972. This means 1 kN = 101.972 kgf.

Is a Kilonewton bigger than a Kilogram-force?

No. One Kilonewton is smaller than one Kilogram-force because 1 kN equals 101.972 kgf, which is greater than 1.

When do you need to convert between Kilonewtons and Kilograms-force?

A legacy metric unit of force equal to the gravitational pull on a 1-kilogram mass at the standard acceleration of gravity g₀ = 9. Kilonewton and Kilogram-force are both force 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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