What is atmospheric pressure at sea level?

Atmospheric pressure at sea level is commonly recognized as 14.7 psi (pounds per square inch). This value represents the force exerted by the weight of air above a given area at sea level, which is considered standard atmospheric pressure. Atmospheric pressure can fluctuate based on weather conditions, elevation, and temperature, but the average value at sea level is approximately 14.7 psi.

In various applications, including high-pressure boiler operations, understanding the standard atmospheric pressure is crucial for calculating pressure differentials, ensuring safety, and performing maintenance. The other values provided do not reflect the standard atmospheric pressure at sea level and may refer to different conditions or regions.