How do you convert pound-force feet to kilonewton meters?

To convert pound-force feet (lbf·ft) to kilonewton meters (kN·m), multiply the measurement in pound-force feet by 0.00135581 (kilonewton meters = pound-force feet × 0.00135581).

What is 5 pound-force feet in kilonewton meters?

5 pound-force feet (5 lbf·ft) is equal to 0.00677908 kilonewton meters (0.00677908 kN·m).

Which is larger, 1 pound-force foot (lbf·ft) or 1 kilonewton meter (kN·m)?

One kilonewton meter (kN·m) is larger than one pound-force foot (lbf·ft). Specifically, 1 kN·m equals 737.56215 lbf·ft, while 1 lbf·ft is 0.00135581 kN·m.

How do I convert back from kilonewton meters (kN·m) to pound-force feet (lbf·ft)?

To reverse the calculation from kN·m to lbf·ft, multiply your kilonewton meter value by the inverse factor 737.56215 (or divide by 0.00135581). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round lbf·ft to kN·m results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 lbf·ft ≈ 0.01 kN·m). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Pound-force Feet to Kilonewton Meters Converter

Enter the moment of force in pound-force feet below to convert it to kilonewton meters.

Kilonewton Meters to Pound-force Feet (kN·m → lbf·ft)

Convert Pound-force Feet to Kilonewton Meters

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

Value (lbf·ft)

From

Result

•

0.00677909kilonewton meters

5 lbf·ft = 0.00677909 kN·m

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Suggested Conversions

Reference:NIST OWM (SI Units — Length)

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Pound-force Foot to Kilonewton Meter Conversion Table

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

Pound-force Feet (lbf·ft)	Kilonewton Meters (kN·m)
1 lbf·ft	0.0013558 kN·m
2 lbf·ft	0.0027116 kN·m
2.5 lbf·ft	0.0033895 kN·m
5 lbf·ft	0.0067791 kN·m
10 lbf·ft	0.0135582 kN·m
15 lbf·ft	0.0203373 kN·m
20 lbf·ft	0.0271164 kN·m
25 lbf·ft	0.0338954 kN·m
30 lbf·ft	0.0406745 kN·m
50 lbf·ft	0.0677909 kN·m

How to Convert Pound-force Feet to Kilonewton Meters

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

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

kilonewton meters = pound-force feet × 0.0013558

The moment of force in kilonewton meters is equal to the moment of force in pound-force feet multiplied by 0.0013558.

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

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

How Many Kilonewton Meters Are in a Pound-force Foot?

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

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

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

Pound-force Feet and kilonewton meters are both units used to measure moment of force. Keep reading to learn more about each unit.

What Is a Pound-force Foot?

A pound-force foot is a unit of moment of force equal to 1.3558179 newton meters (N·m), the base unit for moment of force. Equal to 1.35582 N·m. [1]

The pound-force foot is classified as a US customary unit of moment of force. Pound-force Feet can be abbreviated as lbf·ft; for example, 1 pound-force foot can be written as 1 lbf·ft.

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

In practice, pound-force feet (lbf·ft) are widely used across standard moment of force applications within US customary workflows, engineering documentation, and technical data sheets.

Learn more about pound-force feet in our Moment of Force Converter.

What Is a Kilonewton Meter?

A kilonewton meter is a unit of moment of force equal to 1,000 newton meters (N·m), the base unit for moment of force. Structural engineering bending moment unit (1,000 N·m). [2]

The kilonewton meter is classified as an International System of Units (SI) unit of moment of force. 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 moment of force specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

Learn more about kilonewton meters in our Moment of Force Converter.

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

More Pound-force Foot & Kilonewton Meter Conversions

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

Convert from Pound-force Feet

Convert to Kilonewton Meters

Frequently Asked Questions

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

Moment of Force Converter

Quick Info

Direct Factor: 1 pound-force foot (lbf·ft) equals 0.00135581 kilonewton meters (kN·m).
Inverse Factor: 1 kilonewton meter (kN·m) equals 737.56215 pound-force feet (lbf·ft).
Formula: kilonewton meters = pound-force feet × 0.00135581.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Pound-force Foot (lbf·ft)

Equal to 1.35582 N·m.

Kilonewton Meter (kN·m)

Structural engineering bending moment unit (1,000 N·m).

Newton Meter (N·m)

SI unit of moment of force.

References

[1]NIST OWM · SI Units — Length
Source
[2]BIPM · SI Base Unit: Metre (m)
Source
[3]NIST HB 133 · NIST Handbook 133 (2019 Ed.)
Source

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References

NIST · BIPM · ISO

[1]
NIST OWM (SI Units — Length)·Moment of Force Metrology Standard — Pound-force Feet (lbf·ft) to Kilonewton Meters (kN·m)
NIST OWM Standard
[2]
BIPM (SI Base Unit: Metre (m))·Unit Specifications: Pound-force Foot (lbf·ft) & Kilonewton Meter (kN·m)
BIPM Specification
[3]
NIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (lbf·ft to kN·m)
NIST HB 133 Reference

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