Pound-Force Inch to Newton Millimeter Conversion

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

From Pound-Force Inch

lbf·in

To Newton Millimeter

N·mm

How to Convert Pound-Force Inch to Newton Millimeter

Conversion Formula

1 lbf·in = 112.985 N·mm

1 N·mm = 0.009 lbf·in

Example

Convert 15 lbf·in to N·mm:

15 lbf·in = 15 × 112.985 N·mm = 1694.772 N·mm

Unit Information

Learn about the torque units you're converting between

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

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