Convert Centimeter of water to Terapascal (cmH2O to Terapascal)

Centimeter of water (cmH2O) and Terapascal (Terapascal) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert centimeter of water to terapascal. This free online calculator tool makes it simple and easy to perform the conversion from cmH2O unit to the Terapascal 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.

The centimeter of water (symbol: cmH₂O) is a non-SI unit of pressure defined as the pressure exerted by a one-centimeter column of water under standard gravity. It is widely used in medical equipment, ventilation systems, HVAC engineering, and fluid mechanics because it provides a practical scale for measuring relatively low pressures. The unit is derived from the hydrostatic pressure of water and is described alongside other pressure units in the centimeter of water reference.

One centimeter of water is equal to 98.0665 pascals, 10 millimeters of water, 0.000980665 bar, 0.0142233 psi, and 0.000967841 standard atmosphere. The centimeter of water is commonly used whenever accurate measurement of low pressure is required.

The terapascal (symbol: TPa) is an SI-derived unit of pressure equal to one trillion (10¹²) pascals. It is used primarily in materials science, high-pressure physics, geophysics, and planetary science to describe extremely high pressures. The terapascal uses the SI prefix tera, representing a factor of one trillion.

One terapascal is equal to 1,000 gigapascals, 1,000,000 megapascals, 10,000,000 bars, 1,000,000,000 kilopascals, and 1×10¹² pascals. Although rarely encountered outside scientific research, the terapascal is part of the complete SI pressure scale.