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Pound-feet to Kilonewton-meters Converter

Enter the torque in pound-feet below to convert it to kilonewton-meters.

Convert Pound-feet to Kilonewton-meters

Enter a value in pound-feet (lb·ft) to convert to kilonewton-meters (kN·m).

Result
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0.00677909kilonewton-meters
5 lb·ft = 0.00677909 kN·m
Result updates automatically
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Suggested Conversions
Reference:NIST SP 811 (NIST SP 811 App. B.9 (Moment of Force & Torque))
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Pound-foot to Kilonewton-meter Conversion Table

Table showing various pound-foot measurements converted to kilonewton-meters. Click any preset value or arrow to load it into the converter.

Pound-feet (lb·ft)Kilonewton-meters (kN·m)
1 lb·ft0.0013558 kN·m
2 lb·ft0.0027116 kN·m
2.5 lb·ft0.0033895 kN·m
5 lb·ft0.0067791 kN·m
10 lb·ft0.0135582 kN·m
15 lb·ft0.0203373 kN·m
20 lb·ft0.0271164 kN·m
25 lb·ft0.0338954 kN·m
30 lb·ft0.0406745 kN·m
50 lb·ft0.0677909 kN·m

How to Convert Pound-feet to Kilonewton-meters

To convert pound-feet to kilonewton-meters, multiply the torque by the following conversion ratio: 0.0013558 kilonewton-meters/pound-foot.

Since one pound-foot is equal to 0.0013558 kilonewton-meters, you can use this simple formula to convert:

kilonewton-meters = pound-feet × 0.0013558

The torque in kilonewton-meters is equal to the torque in pound-feet multiplied by 0.0013558.

For example, here's how to convert 5 pound-feet to kilonewton-meters using the formula above.

kilonewton-meters = (5 lb·ft × 0.0013558) = 0.0067791 kN·m

How Many Kilonewton-meters Are in a Pound-foot?

There are 0.0013558 kilonewton-meters in a pound-foot, which is why we use this value in the formula above.

1 lb·ft = 0.0013558 kN·m|1 kN·m = 737.5621493 lb·ft

Our pound-foot to kilonewton-meter calculator automatically converts your torque measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Pound-feet and kilonewton-meters are both units used to measure torque. Keep reading to learn more about each unit.

What Is a Pound-foot?

A pound-foot is a unit of torque equal to 1.3558179 newton-meters (N·m), the base unit for torque. Equal to 1.355818 N·m. [1]

The pound-foot is classified as a US customary and imperial unit of torque. Pound-feet can be abbreviated as lb·ft; for example, 1 pound-foot can be written as 1 lb·ft.

When working with pound-feet (lb·ft) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, pound-feet (lb·ft) are widely used across standard torque applications within US customary and imperial workflows, engineering documentation, and technical data sheets.

What Is a Kilonewton-meter?

A kilonewton-meter is a unit of torque equal to 1,000 newton-meters (N·m), the base unit for torque. Equal to 1,000 N·m. [2]

The kilonewton-meter is classified as a metric and SI-compatible unit of torque. Kilonewton-meters can be abbreviated as kN·m; for example, 1 kilonewton-meter can be written as 1 kN·m.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilonewton-meter (kN·m) a convenient decimal multiple of the newton-meter (N·m).

In practice, kilonewton-meters (kN·m) are widely used across large-scale industrial, bulk, and macro-level torque specifications within SI metric workflows, engineering documentation, and technical data sheets.

When converting torque between pound-feet (lb·ft) and kilonewton-meters (kN·m), keep full floating-point precision (1 lb·ft = 0.0013558 kN·m; 1 kN·m = 737.5621493 lb·ft) during intermediate calculations and round only the final kilonewton-meter figure to match your instrument tolerance.

More Pound-foot & Kilonewton-meter Conversions

Need to calculate in the opposite direction? Use our kilonewton-meters to pound-feet calculator to switch your starting unit immediately. You can also explore related tools such as converting kilonewton-meters to pound-feet, converting pound-feet to newton-meters, or converting pound-feet to pound-inches.

Frequently Asked Questions

There are 0.00135581 kilonewton-meters (kN·m) in 1 pound-foot (lb·ft). Conversely, 1 kilonewton-meter (kN·m) is equal to 737.56215 pound-feet (lb·ft).

References

NIST · BIPM · ISO
  1. [1]
    NIST SP 811 (NIST SP 811 App. B.9 (Moment of Force & Torque))·Torque Metrology Standard — Pound-feet (lb·ft) to Kilonewton-meters (kN·m)
    NIST SP 811 Standard
  2. [2]
    NIST App. B.8 (NIST SP 811 Alphabetical Conversion Factors)·Unit Specifications: Pound-foot (ft·lbf) (lb·ft) & Kilonewton-meter (kN·m)
    NIST App. B.8 Specification
  3. [3]
    BIPM (Mechanics & Rotational Work (N·m))·Conversion Factors & Mathematical Basis (lb·ft to kN·m)
    BIPM Reference
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