Pound-Force Foot to Kilonewton Meter Conversion

Convert between Pound-Force Foot and Kilonewton Meter quickly and accurately.

From Pound-Force Foot

lbf·ft

To Kilonewton Meter

kN·m

How to Convert Pound-Force Foot to Kilonewton Meter

Conversion Formula

1 lbf·ft = 0.001 kN·m

1 kN·m = 737.562 lbf·ft

Example

Convert 15 lbf·ft to kN·m:

15 lbf·ft = 15 × 0.001 kN·m = 0.02 kN·m

Unit Information

Learn about the torque units you're converting between

Pound-Force Foot

lbf·ft

Definition

The pound-force foot (lbf·ft) is an imperial unit of torque, commonly known as foot-pound. It represents the rotational force produced by one pound-force applied at one foot from the pivot point.

History/Origin

This unit is a cornerstone of the US customary system for rotational dynamics. It has a long history of use in mechanical engineering, particularly in the automotive, aerospace, and manufacturing industries.

Current Use

Predominantly used in the United States for engineering calculations, especially in contexts like engine torque, fastener tightening, and machinery design where imperial units for force and length are standard.

Multiplier

1.356

Offset

Kilonewton Meter

kN·m

Definition

The kilonewton meter (kN·m) is a metric unit of torque, equal to 1,000 newton meters. It represents the rotational force produced when a force of one kilonewton is applied perpendicularly at a distance of one meter from the pivot point.

History/Origin

This unit was established as a multiple of the SI base unit for larger torque applications. It became standard in heavy engineering and construction where forces and distances are considerable, providing a convenient scale for high-torque applications.

Current Use

Extensively used in structural engineering, heavy machinery, wind turbines, and large-scale mechanical systems where substantial torque values are encountered. It simplifies calculations for high-torque applications in industrial and construction contexts.

Multiplier

1000

Offset