About 1/2 pound.
1 foot = 12 inches1 foot-pound = 12 inch-pounds
255 inch pounds = 21.25 foot pounds.
1 foot = 12 inches(1 foot) pound = (12 inch) pounds(18 foot) pounds = (18 x 12) = 216 inch pounds
One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
90 inch - pounds (torque) = 90 / 12 = 7.5 foot pounds (torque)
140/12 = 11.66... foot pounds
1 square ft= 144 square inch
250 Inch-Pounds = 20.833333 Foot-Pounds
25 inch pounds = 2.08333333 foot pounds
The conversion between inch pound and foot pounds are given .On finding the relation we get as follows . So, 1 foot pounds =12 inch pounds .
ATM is the abbreviation for atmosphere's, which is a measurement of pressure. 1 ATM = 14.696 PSI 30 ATM = 440.88 PSI (440.88 pounds)/1 square inch = (40.88 pounds)/(1/144)square feet 63486.72 pounds per square foot. So 30 atmospheres is equal approximately to 63486.72 pounds per square foot.
1 square foot = 144 square inches.