EVERYDAY · ENGINEERING · SCIENCE

Unit conversion. Made clear.

Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.

520units ready to convert
STRUCTURAL

Pressure & stress

Pressure, material stress and fluid head.

atm
psf

Try a decimal, 1e-9, 1/3, or 5 1/2.

Resultatm → psfConvert standard atmosphere to pound-force per square foot
HOW IT IS CALCULATED

Convert through pascal

Enter a standard atmosphere value to calculate pound-force per square foot with full internal precision before display rounding.

Display precisionAuto · 12 significant digits

Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.

QUICK REFERENCE

All units in this quantity

UnitSymbolConverted value
pascalfrom atmPaInteractive
hectopascalfrom atmhPaInteractive
kilopascalfrom atmkPaInteractive
megapascalfrom atmMPaInteractive
gigapascalfrom atmGPaInteractive
millibarfrom atmmbarInteractive
barfrom atmbarInteractive
standard atmospherefrom atmatmInteractive
torrfrom atmTorrInteractive
millimetre of mercuryfrom atmmmHgInteractive
inch of mercury, conventionalfrom atminHgInteractive
millimetre of water, conventionalfrom atmmmH₂OInteractive
inch of water, conventionalfrom atminH₂OInteractive
pound-force per square footfrom atmpsfInteractive
pound-force per square inchfrom atmpsiInteractive
kilopound-force per square inchfrom atmksiInteractive
kilogram-force per square centimetrefrom atmkgf/cm²Interactive

SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.