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Convert Kilograms-force to Ounces-force

Instantly convert Kilograms-force (kgf) to Ounces-force (ozf) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: kgf to ozfmultiply by 35.2739

Reference Table

Kilograms-force (kgf)Ounces-force (ozf)
135.2739
5176.37
10352.739
25881.849
501763.7
1003527.39

How to Convert Kilograms-force to Ounces-force

Formula

To convert Kilograms-force (kgf) to Ounces-force (ozf): multiply by 35.2739

Step-by-Step

  1. Start with your value in Kilograms-force (kgf).
  2. Multiply by 35.2739 to perform the conversion.
  3. The result is your value expressed in Ounces-force (ozf).

Conversion Factor

1 kgf = 35.2739 ozf

Reverse Factor

1 ozf = 0.0283495 kgf

Worked Example

Convert 25 Kilograms-force to Ounces-force: 25 kgf = 881.849 ozf

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.

About Ounce-force (ozf)

An imperial unit of force equal to exactly 1/16 of a pound-force (≈ 0.2780 N or 27.80 gf), corresponding to the gravitational pull on a 1-ounce avoirdupois mass. Ounce-force is rarely used at structural engineering scale but appears in identifiable specialty contexts: low-power motor torque ratings (oz·in is the working torque unit for stepper-motor and brushless-DC-motor specifications in robotics and CNC equipment — NEMA-17 steppers are rated 30-90 oz·in), low-force spring specifications (clock and watch escapement springs, scale-calibration springs, electronic test-probe springs), paper-handling and small-mechanism equipment like ATMs, currency-counters, ticket printers, and document scanners (the ANSI/INCITS B175.0 testing standard for paper-feed force is ozf-based), light-rigging hardware (small block-and-tackle, fishing-tackle line-test ratings indirectly via lb specs), and laboratory force gauges used in QC for medical-device push-button activation forces. Convert: 1 ozf = 28.3495 gf = 0.0625 lbf = 0.27801 N.

Quick Facts

  • 1 Kilogram-force equals 35.2739 Ounces-force
  • 1 Ounce-force equals 0.0283495 Kilograms-force
  • Kilogram-force is a unit of force
  • Ounce-force is a unit of force
  • This conversion is commonly used in structural engineering, physics, and mechanical design
  • The Kilogram-force belongs to the metric system
  • The Ounce-force belongs to the imperial system

Common Kilogram-force to Ounce-force Conversions

Kilograms-force (kgf)Ounces-force (ozf)
0.010.352739
0.13.52739
0.258.81849
0.517.637
135.2739
270.5479
3105.822
5176.37
10352.739
15529.109
20705.479
25881.849
501763.7
752645.55
1003527.39
2508818.49
50017637
100035273.9
5000176370
10000352739

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.

Understanding Ounces-force

The Ounce-force (symbol: ozf) is a unit of force. An imperial unit of force equal to exactly 1/16 of a pound-force (≈ 0.2780 N or 27.80 gf), corresponding to the gravitational pull on a 1-ounce avoirdupois mass. Ounce-force is rarely used at structural engineering scale but appears in identifiable specialty contexts: low-power motor torque ratings (oz·in is the working torque unit for stepper-motor and brushless-DC-motor specifications in robotics and CNC equipment — NEMA-17 steppers are rated 30-90 oz·in), low-force spring specifications (clock and watch escapement springs, scale-calibration springs, electronic test-probe springs), paper-handling and small-mechanism equipment like ATMs, currency-counters, ticket printers, and document scanners (the ANSI/INCITS B175.0 testing standard for paper-feed force is ozf-based), light-rigging hardware (small block-and-tackle, fishing-tackle line-test ratings indirectly via lb specs), and laboratory force gauges used in QC for medical-device push-button activation forces. Convert: 1 ozf = 28.3495 gf = 0.0625 lbf = 0.27801 N.

It belongs to the imperial measurement system.

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

Why Convert Kilograms-force to Ounces-force?

Converting between Kilograms-force and Ounces-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 Kilograms-force to Ounces-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. To convert Kilograms-force to Ounces-force, multiply by 35.2739. For example, 25 kgf equals 881.849 ozf.

How many Ounces-force are in 1 Kilogram-force?

There are 35.2739 Ounces-force in 1 Kilogram-force.

How many Kilograms-force are in 1 Ounce-force?

There are 0.0283495 Kilograms-force in 1 Ounce-force.

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

The formula is: multiply by 35.2739. This means 1 kgf = 35.2739 ozf.

Is a Kilogram-force bigger than a Ounce-force?

No. One Kilogram-force is smaller than one Ounce-force because 1 kgf equals 35.2739 ozf, which is greater than 1.

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

An imperial unit of force equal to exactly 1/16 of a pound-force (≈ 0. Kilogram-force and Ounce-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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