Pressure Unit Converter

SI unit of pressure equal to one newton per square meter. Used internationally in engineering specifications.

Common metric pressure unit. 1 kPa = 1000 Pa. Widely used in geotechnical engineering and international building codes.

Used for concrete and steel strength specifications internationally. 1 MPa = 1 N/mm².

Used for elastic modulus of materials. Steel has a modulus of about 200 GPa.

Metric pressure unit approximately equal to one atmosphere. Common in European industrial and process engineering.

Equal to one hectopascal (hPa). Commonly used in meteorology and atmospheric science.

Primary US customary pressure unit. Used extensively in mechanical, civil, and petroleum engineering in the United States.

1 ksi = 1000 psi. Standard unit for steel yield strength and concrete compressive strength in US practice.

Defined as exactly 101,325 Pa. Reference pressure for many engineering calculations and chemical processes.

Defined as 1/760 of a standard atmosphere. Used in vacuum engineering and scientific applications.

Pressure exerted by a 1 mm column of mercury. Used in medical (blood pressure) and laboratory applications.

Pressure exerted by a 1 cm column of mercury at 0°C under standard gravity.

Commonly used for barometric pressure readings in the United States and in HVAC engineering.

Pressure exerted by a 1 cm column of water at 4°C. Used in medical ventilation and low-pressure measurements.

Common HVAC unit for measuring duct static pressure and filter pressure drops.

Used for pump head calculations in US customary units. Critical for water system design and pump selection.

Also known as a technical atmosphere (at). Common in older engineering references and some international standards.

Used for structural floor loads, wind loads, and soil bearing pressure in US civil engineering.

CGS unit of pressure, also called the barye. Equal to 0.1 Pa. Used in some scientific applications.