Convert Technical Atmosphere to Meter of Head (at to Meter of Head)

Technical Atmosphere (at) and Meter of Head (Meter of Head) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert technical atmosphere to meter of head. This free online calculator tool makes it simple and easy to perform the conversion from at unit to the Meter of Head unit.

Pressure is the force applied perpendicular to a surface per unit area: P = F / A. The SI unit is the pascal (Pa), equal to one newton per square metre (1 Pa = 1 N/m²). Practical applications use larger units: the bar (1 bar = 100,000 Pa, close to standard atmospheric pressure), atmosphere (atm) (1 atm = 101,325 Pa), and psi (pounds per square inch, used in the US for tire and gas pressures). Blood pressure is measured in mmHg (millimetres of mercury), also called torr.

Technical atmosphere (symbol: at) is a unit of pressure defined as the pressure exerted by one kilogram-force per square centimeter. One technical atmosphere is exactly equal to 98,066.5 pascals, 0.980665 bar, or 0.967841 standard atmosphere (atm). The technical atmosphere was widely used in engineering, hydraulics, and industrial pressure measurements, particularly in Europe, before SI units became the international standard. It is still encountered in older engineering documents and is commonly converted to pascals, bar, and standard atmospheres when interpreting historical specifications and technical data.

The meter of head (symbol: mH₂O or m head) is a non-SI unit of pressure that represents the pressure generated by a one-meter column of water under standard gravity. It is widely used in hydraulics, water supply systems, pumps, irrigation, and fluid engineering to describe pressure and pump performance. Although the pascal is the SI unit of pressure, the meter of head remains popular because it directly relates pressure to water height. It is based on the principles of hydraulic head.

One meter of head is equal to 9,806.65 pascals, 9.80665 kilopascals, 0.0980665 bar, 1.42233 pounds per square inch, and 3.28084 feet of water. The meter of head is commonly used to specify pump capacity and water system pressure.