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Convert Ounce-force-inches to Kilogram-force-meters

Instantly convert Ounce-force-inches (oz·in) to Kilogram-force-meters (kgf·m) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: oz·in to kgf·mmultiply by 7.2008e-4

Reference Table

Ounce-force-inches (oz·in)Kilogram-force-meters (kgf·m)
10.000720078
50.00360039
100.00720078
250.0180019
500.0360039
1000.0720078

How to Convert Ounce-force-inches to Kilogram-force-meters

Formula

To convert Ounce-force-inches (oz·in) to Kilogram-force-meters (kgf·m): multiply by 7.2008e-4

Step-by-Step

  1. Start with your value in Ounce-force-inches (oz·in).
  2. Multiply by 7.2008e-4 to perform the conversion.
  3. The result is your value expressed in Kilogram-force-meters (kgf·m).

Conversion Factor

1 oz·in = 0.000720078 kgf·m

Reverse Factor

1 kgf·m = 1388.74 oz·in

Worked Example

Convert 25 Ounce-force-inches to Kilogram-force-meters: 25 oz·in = 0.0180019 kgf·m

About Ounce-force-inch (oz·in)

An imperial unit of torque equal to one ounce-force at a one-inch lever arm (≈ 0.00706155 N·m, exactly 1/192 of a ft·lbf since 1 lb = 16 oz and 1 ft = 12 in). Ounce-inches are the US working unit for fractional-horsepower motor torque specifications under NEMA standards and stepper-motor data sheets: stepper motors (NEMA-11 16-25 oz·in, NEMA-17 30-90 oz·in, NEMA-23 60-300 oz·in, NEMA-34 300-1,200 oz·in), small DC and BLDC motors for robotics and electromechanical actuators, RC servos (a typical analog hobby servo is 30-80 oz·in; high-torque digital servos reach 600 oz·in), instrument-grade torque measurement (precision torque sensors and calibrators), and small-appliance / electromechanical device design (camera lens autofocus motors, optical-disc drive spindles, paper-feed motors in printers / ATMs / currency-counters). At this scale oz·in provides finer resolution than in·lbf for specifying startup torque and continuous-duty ratings. Convert oz·in to N·m by multiplying by 0.00706; to kgf·cm by multiplying by 0.072.

About Kilogram-force-meter (kgf·m)

A legacy metric unit of torque equal to one kilogram-force applied at a one-meter lever arm (exactly 9.80665 N·m, derived from the standard acceleration of gravity g₀ = 9.80665 m/s²). Although officially replaced by the newton-meter under SI / ISO 80000-4, kgf·m persists in specific contexts: Japanese and older European machinery specifications (Yamaha, Suzuki, Kawasaki, and Honda motorcycle service manuals dual-list axle/swingarm/crankcase torques in kgf·m alongside N·m; Russian and Eastern-European industrial press ratings), Korean automotive heavy-equipment specs, legacy ISO 4759-3 fastener-tightening tables (now superseded by VDA / ISO 16047), and crank-handle / hand-tool torque ratings in markets where kgf is still the everyday force unit. Typical motorcycle axle nut: ~10 kgf·m ≈ 100 N·m. Convert kgf·m to N·m by multiplying by exactly 9.80665; to ft·lbf by multiplying by 7.233.

Quick Facts

  • 1 Ounce-force-inch equals 0.000720078 Kilogram-force-meters
  • 1 Kilogram-force-meter equals 1388.74 Ounce-force-inches
  • Ounce-force-inch is a unit of torque
  • Kilogram-force-meter is a unit of torque
  • This conversion is commonly used in automotive maintenance, structural engineering, and manufacturing
  • The Ounce-force-inch belongs to the imperial system
  • The Kilogram-force-meter belongs to the metric system

Common Ounce-force-inch to Kilogram-force-meter Conversions

Ounce-force-inches (oz·in)Kilogram-force-meters (kgf·m)
0.010.00000720078
0.10.0000720078
0.250.000180019
0.50.000360039
10.000720078
20.00144016
30.00216023
50.00360039
100.00720078
150.0108012
200.0144016
250.0180019
500.0360039
750.0540058
1000.0720078
2500.180019
5000.360039
10000.720078
50003.60039
100007.20078

Understanding Ounce-force-inches

The Ounce-force-inch (symbol: oz·in) is a unit of torque. An imperial unit of torque equal to one ounce-force at a one-inch lever arm (≈ 0.00706155 N·m, exactly 1/192 of a ft·lbf since 1 lb = 16 oz and 1 ft = 12 in). Ounce-inches are the US working unit for fractional-horsepower motor torque specifications under NEMA standards and stepper-motor data sheets: stepper motors (NEMA-11 16-25 oz·in, NEMA-17 30-90 oz·in, NEMA-23 60-300 oz·in, NEMA-34 300-1,200 oz·in), small DC and BLDC motors for robotics and electromechanical actuators, RC servos (a typical analog hobby servo is 30-80 oz·in; high-torque digital servos reach 600 oz·in), instrument-grade torque measurement (precision torque sensors and calibrators), and small-appliance / electromechanical device design (camera lens autofocus motors, optical-disc drive spindles, paper-feed motors in printers / ATMs / currency-counters). At this scale oz·in provides finer resolution than in·lbf for specifying startup torque and continuous-duty ratings. Convert oz·in to N·m by multiplying by 0.00706; to kgf·cm by multiplying by 0.072.

It belongs to the imperial measurement system.

Ounce-force-inches are commonly used in automotive maintenance, structural engineering, and manufacturing.

Understanding Kilogram-force-meters

The Kilogram-force-meter (symbol: kgf·m) is a unit of torque. A legacy metric unit of torque equal to one kilogram-force applied at a one-meter lever arm (exactly 9.80665 N·m, derived from the standard acceleration of gravity g₀ = 9.80665 m/s²). Although officially replaced by the newton-meter under SI / ISO 80000-4, kgf·m persists in specific contexts: Japanese and older European machinery specifications (Yamaha, Suzuki, Kawasaki, and Honda motorcycle service manuals dual-list axle/swingarm/crankcase torques in kgf·m alongside N·m; Russian and Eastern-European industrial press ratings), Korean automotive heavy-equipment specs, legacy ISO 4759-3 fastener-tightening tables (now superseded by VDA / ISO 16047), and crank-handle / hand-tool torque ratings in markets where kgf is still the everyday force unit. Typical motorcycle axle nut: ~10 kgf·m ≈ 100 N·m. Convert kgf·m to N·m by multiplying by exactly 9.80665; to ft·lbf by multiplying by 7.233.

It belongs to the metric measurement system.

Kilogram-force-meters are commonly used in automotive maintenance, structural engineering, and manufacturing.

Why Convert Ounce-force-inches to Kilogram-force-meters?

Converting between Ounce-force-inches and Kilogram-force-meters is a frequent requirement for engineers, scientists, and students working with torque 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 torque conversion is essential.

Frequently Asked Questions

How do I convert Ounce-force-inches to Kilogram-force-meters?

An imperial unit of torque equal to one ounce-force at a one-inch lever arm (≈ 0. To convert Ounce-force-inches to Kilogram-force-meters, multiply by 7.2008e-4. For example, 25 oz·in equals 0.0180019 kgf·m.

How many Kilogram-force-meters are in 1 Ounce-force-inch?

There are 0.000720078 Kilogram-force-meters in 1 Ounce-force-inch.

How many Ounce-force-inches are in 1 Kilogram-force-meter?

There are 1388.74 Ounce-force-inches in 1 Kilogram-force-meter.

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

The formula is: multiply by 7.2008e-4. This means 1 oz·in = 0.000720078 kgf·m.

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

Yes. One Ounce-force-inch is larger than one Kilogram-force-meter because 1 oz·in equals 0.000720078 kgf·m, which is less than 1.

When do you need to convert between Ounce-force-inches and Kilogram-force-meters?

A legacy metric unit of torque equal to one kilogram-force applied at a one-meter lever arm (exactly 9. Ounce-force-inch and Kilogram-force-meter are both torque 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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