**Definitions:**

**Megapascal** (abbreviations: **Mpa, or MN/m2, or N/mm2**): is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is one meganewton per square meter or one newton per square millimeter. It is named after the French polymath Blaise Pascal.

**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 Megapascals to Pounds Per Square Feet

*Example: How many pounds per square feet are equivalent to 40.78 megapascals?*

As;

1 megapascals = 20885.459731138 pounds per square feet

40.78 megapascals = Y pounds per square feet

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

Y equals 40.78 times 20885.459731138 over 1

(i.e.) Y = 40.78 * 20885.459731138 / 1 = 851709.04783581 pounds per square feet

Answer is: 851709.04783581 pounds per square feet are equivalent to 40.78 megapascals.

*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 ) 97.28 mpa

( ii ) 59.75 mpa

( iii ) 34.9 mpa