Newton Millimeter to Pound-Force Inch Conversion

Convert between Newton Millimeter and Pound-Force Inch quickly and accurately.

N·mm
lbf·in

How to Convert Newton Millimeter to Pound-Force Inch

Conversion Formula

1 N·mm = 0.009 lbf·in
1 lbf·in = 112.985 N·mm

Example

Convert 15 N·mm to lbf·in:

15 N·mm = 15 × 0.009 lbf·in = 0.133 lbf·in

Unit Information

Learn about the torque units you're converting between

Newton Millimeter

N·mm

Definition

The newton millimeter (N·mm) is a metric unit of torque, equal to 0.001 newton meters. It represents the rotational force produced when a force of one newton is applied perpendicularly at a distance of one millimeter from the pivot point.

History/Origin

This unit was developed as a submultiple of the newton meter for very precise torque measurements. It became important in precision engineering and manufacturing where millimeter-scale measurements are standard.

Current Use

Commonly used in precision manufacturing, micro-mechanics, and laboratory instruments where very small torque values need to be measured accurately. It is essential for fine mechanical adjustments and precision assembly work.

Multiplier

0.001

Offset

0

Pound-Force Inch

lbf·in

Definition

The pound-force inch (lbf·in) is an imperial unit of torque, equal to 0.1129848333 newton meters. It represents the rotational force produced by one pound-force applied at one inch from the pivot point.

History/Origin

This unit was commonly used in the US customary system for smaller torque measurements in precision engineering and manufacturing. It provided a practical unit for inch-scale applications in mechanical design.

Current Use

Widely used in precision manufacturing, small mechanical devices, and laboratory equipment where inch-scale measurements and pound-force applications are standard in US engineering practice.

Multiplier

0.113

Offset

0

Newton Millimeter to Pound-Force Inch Conversion Table

Newton Millimeter [N·mm] Pound-Force Inch [lbf·in]
1 N·mm 0.008851 lbf·in
10 N·mm 0.088507 lbf·in
25 N·mm 0.221269 lbf·in
50 N·mm 0.442537 lbf·in
100 N·mm 0.885075 lbf·in
0 N·mm 0E+0 lbf·in
-10 N·mm -0.088507 lbf·in
-40 N·mm -0.35403 lbf·in