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Glossary » Units » Pressure » Standard Atmosphere
Standard Atmosphere (atm) is a unit in the category of Pressure. It is also known as standard atmospheres. This unit is commonly used in the INT unit system. Standard Atmosphere (atm) has a dimension of ML-1T-2 where M is mass, L is length, and T is time. It can be converted to the corresponding standard SI unit Pa by multiplying its value by a factor of 101325.
Note that the seven base dimensions are M (Mass), L (Length), T (Time), Q (Temperature), N (Aamount of Substance), I (Electric Current), and J (Luminous Intensity).

Other units in the category of Pressure include Atmosphere (metric) (at), Atmosphere (standard) (atm), Bar (bar), Barad (barad), Barye, CentiHg (0°C), Centimeter of Mercury (0°C) (cmHg (0 °C)), Centimeter of Water (4°C) (cmH2O), Dyne Per Square Centimeter (dyn/cm2), Foot of Water (4°C) (ft H2O), Gigapascal (GPa), Hectopascal (hPa), Inch of Mercury (0°C) (inHg (0 °C)), Inch of Mercury (15.56°C) (inHg (15.56 °C)), Inch of Water (15.56°C) (inH2O (15.56 °C)), Inch of Water (4°C) (inH2O (4 °C)), Kilogram Force Per Square Centimeter (kgf/cm2), Kilogram Force Per Square Decimeter (kgf/dm2), Kilogram Force Per Square Meter (kgf/m2), Kilogram Force Per Square Millimeter (kgf/mm2), Kilopascal (kPa), Kilopound Force Per Square Inch (kip/in2, ksi, KSI), Megapascal (MPa), Meter of Water (15.56°C) (mH2O, mCE (15.56 °C)), Meter of Water (4°C) (mH2O, mCE (4 °C)), Microbar (barye, Barrie) (µbar), Micron of Mercury (millitorr) (µHg (0 °C)), Millibar (mbar), Millimeter of Mercury (0°C) (mmHg, torr, Torr (0 °C)), Millimeter of Water (15.56°C) (mmH2O, mmCE (15.56 °C)), Millimeter of Water (4°C) (mmH2O, mmCE (4 °C)), Millitorr (mtorr), Newton Per Square Meter (N/m2), Ounce Force (av.) Per Square Inch (ozf/in2, osi), Pascal (Pa, N/m2), Pound Force Per Square Foot (lbf/ft2), Pound Force Per Square Inch (psi, PSI, lbf/in2), Poundal Per Square Foot (pdl/ft2), Poundal Per Square Inch (pdl/in2), Ton Force (long) Per Square Foot (tonf/ft2 (UK)), Ton Force (long) Per Square Inch (tonf/in2 (UK)), Ton Force (metric) Per Square Centimeter (tonf/cm2 (metric)), Ton Force (metric) Per Square Meter (tonf/m2 (metric)), Ton Force (short) Per Square Foot (tonf/ft2 (US)), Ton Force (short) Per Square Inch (tonf/in2 (US)), and Torr (torr).

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CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.