**Definitions:**

**Kilopound Per Square Inch** (abbreviations: **ksi, or kips/in2**): is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one kilopound-force applied to an area of one square inch.

**Pound Per Square Foot** (abbreviations: **psf, or lb/ft2**): is a British (Imperial) and American pressure unit which is directly related to the psi pressure unit by a factor of 144 (1 sq ft = 12 in x 12 in = 144 sq in). Where, 1 pound per square foot equals 47.8803 pascals.

## How to Convert Kilopounds Per Square Inches to Pounds Per Square Feet

*Example: How many pounds per square feet are equivalent to 34.29 kilopounds per square inches?*

As;

1 kilopounds per square inches = 144000.09216006 pounds per square feet

34.29 kilopounds per square inches = Y pounds per square feet

Assuming Y is the answer, and by criss-cross principle;

Y equals 34.29 times 144000.09216006 over 1

(i.e.) Y = 34.29 * 144000.09216006 / 1 = 4937763.1601685 pounds per square feet

Answer is: 4937763.1601685 pounds per square feet are equivalent to 34.29 kilopounds per square inches.

*Practice Question: Convert the following units into psf:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 18.55 ksi

( ii ) 72.27 ksi

( iii ) 96.08 ksi