Rounded up to 15
About 14,000 pounds per square inch
250 pounds per square inch.
Atmosphere pressure can be measured in pounds per square inch, and this varies depending on how far a location is above or below sea level. At sea level, atmospheric pressure equals 14.7 pounds per square inch (or psi).
13 psi
2,125 pounds
At sea level, one square inch of surface area is under approximately 14.7 pounds of pressure due to the weight of the atmosphere above it.
At sea level, a square inch of surface is under approximately 14.7 pounds of pressure due to the weight of the atmosphere above it. This pressure is known as one atmosphere or 1 atm.
At sea level, the average air pressure is around 14.7 pounds per square inch (psi) exerted on your body from all directions.
From the NASA link, below: "Earth's atmosphere is pressing against each square inch of you with a force of 1 kilogram per square centimeter (14.7 pounds per square inch)."
Ice exerts a pressure of around 35,000 to 40,000 pounds per square inch in a pipe. This pressure is due to the expansion of water when it freezes, causing the ice to exert a significant force on the walls of the pipe.
About 1/2 pound.
You can't convert between units of pressure and units of force (or mass).