Pound-Force Foot to Kilogram-Force Millimeter Conversion

Convert between Pound-Force Foot and Kilogram-Force Millimeter quickly and accurately.

From Pound-Force Foot

lbf·ft

To Kilogram-Force Millimeter

kgf·mm

How to Convert Pound-Force Foot to Kilogram-Force Millimeter

Conversion Formula

1 lbf·ft = 138.255 kgf·mm

1 kgf·mm = 0.007 lbf·ft

Example

Convert 15 lbf·ft to kgf·mm:

15 lbf·ft = 15 × 138.255 kgf·mm = 2073.824 kgf·mm

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

Kilogram-Force Millimeter

kgf·mm

Definition

The kilogram-force millimeter (kgf·mm) is a gravitational metric unit of torque, equal to 0.00980665 newton meters. It represents the rotational force produced by one kilogram-force applied at one millimeter from the pivot point.

History/Origin

This unit was used in the technical system of units for very precise torque measurements at millimeter scales. It provided a practical unit for fine mechanical adjustments and precision work.

Current Use

Primarily found in older technical specifications and some specialized manufacturing applications where millimeter-scale precision is required and gravitational metric units are maintained.

Multiplier

0.01

Offset