# Convert Pound Per Square Foot to Kilopound Per Square Inch (psf to ksi)

In next fields, kindly type your value in the text box under title [ From: ] to convert from pound per square foot to kilopound per square inch (psf to ksi). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].

**Definitions:**

**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.

**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.

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

*Example: How many kilopounds per square inches are equivalent to 41.41 pounds per square feet?*

As;

1 pounds per square feet = 6.94444E-6 kilopounds per square inches

41.41 pounds per square feet = Y kilopounds per square inches

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

Y equals 41.41 times 6.94444E-6 over 1

(i.e.) Y = 41.41 * 6.94444E-6 / 1 = 0.0002875692604 kilopounds per square inches

Answer is: 0.0002875692604 kilopounds per square inches are equivalent to 41.41 pounds per square feet.

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

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

( i ) 36.49 psf

( ii ) 74.73 psf

( iii ) 2.7 psf