What is 91in³ in Board Feet?

You are: Home > Volume > Cubic Inches to Board Feet

What is 91 Cubic Inches (91in³) in Board Feet (FBM)?

What is 91in³ in FBM? Convert 91 Cubic Inches (91in³) to Board Feet (FBM) and show formula, brief history on the units and quick maths for the conversion.

Enter Cubic Inches to convert to Board Feet


Quick Reference for Converting Cubic Inches to Board Feet

Formula
FBM = in³ / 144
Quick Rough Maths
To get the Board Feet, divide the number of Cubic Inches by 144.0
Cubic Inches (in³) in 1 Board Foot
There are 144 Cubic Inches in 1 Board Foot
Board Feet (FBM) in 1 Cubic Inch
There are 0.01 Board Feet in 1 Cubic Inch

Unit Information

Cubic Inch
/ˈkjuːbɪk ɪn(t)ʃ/
Symbol: in³
Unit System: Imperial

What is the Cubic Inch?

The cubic inch is a unit of volume derived from the imperial unit system and uses the symbol in³.

1 cubic inch is defined as equal to the volume of a cube with edges measuring 1 in. It is equivalent in volume to 16.387 ml, 1/231 US gallons and 1/1728 ft³.

Common uses for cubic inches include quantifying the size of electrical boxes and in the automotive industry for measuring engine displacement. The 5th generation Ford Mustang ran on a Boss 302 which was a 302 in³ engine (5.0L).

Board Foot
/bɔːd fʊt/
Symbol: FBM
Unit System: Imperial

What is the Board Foot?

The board foot is a unit of volume derived from the imperial system of units with the symbol FBM.

1 board foot is equal to the volume of an object one foot in length, one foot wide and one inch thick. It is therefore equal to 1/12 ft³.

The board foot is the unit used to measure rough or planed lumber. For example 2 x 4 timber when planed actually only measures 1.5 in x 3.5 in. This takes into account the wastage when planing. The board feet measurement in this case would represent the wholesale amount. Where the loss in board feet (and planing) only applies to width and thickness, the actual length is used - as there is no loss when cutting lengths.


Conversion Tables for Cubic Inches (in³) to Board Feet (FBM)