Pound Square Foot to Kilogram Square Millimeter Conversion

Convert between Pound Square Foot and Kilogram Square Millimeter quickly and accurately.

lb·ft²
kg·mm²

How to Convert Pound Square Foot to Kilogram Square Millimeter

Conversion Formula

1 lb·ft² = 42140.11 kg·mm²
1 kg·mm² = 0 lb·ft²

Example

Convert 15 lb·ft² to kg·mm²:

15 lb·ft² = 15 × 42140.11 kg·mm² = 632101.652 kg·mm²

Unit Information

Learn about the moment of inertia units you're converting between

Pound Square Foot

lb·ft²

Definition

The pound square foot (lb·ft²) is a unit of moment of inertia in the imperial system. It is commonly used in US engineering and construction applications.

History/Origin

This unit combines the pound (mass) with the square foot, providing a measure of moment of inertia in the imperial system for larger scale applications.

Current Use

Widely used in US engineering, construction, and mechanical design where imperial units are preferred for moment of inertia calculations in larger systems.

Multiplier

0.042

Offset

0

Kilogram Square Millimeter

kg·mm²

Definition

The kilogram square millimeter (kg·mm²) is a unit of moment of inertia for very small rotating components. It is used in micro-mechanical systems and precision instruments.

History/Origin

Based on the kilogram and square millimeter, this unit addresses the need for moment of inertia measurements in micro-scale mechanical systems and precision engineering.

Current Use

Used in micro-mechanical systems, precision instruments, small electronic components, and applications requiring very fine-scale moment of inertia calculations.

Multiplier

0

Offset

0

Pound Square Foot to Kilogram Square Millimeter Conversion Table

Pound Square Foot [lb·ft²] Kilogram Square Millimeter [kg·mm²]
1 lb·ft² 42140.1101 kg·mm²
10 lb·ft² 421401.1010000001 kg·mm²
25 lb·ft² 1053502.7524999999 kg·mm²
50 lb·ft² 2107005.5049999999 kg·mm²
100 lb·ft² 4214011 kg·mm²
0 lb·ft² 0E+0 kg·mm²
-10 lb·ft² -421401.1010000001 kg·mm²
-40 lb·ft² -1685604.4040000001 kg·mm²