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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.

inH₂O
psi

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

ResultinH₂O → psiConvert inch of water, conventional to pound-force per square inch
HOW IT IS CALCULATED

Convert through pascal

Enter a inch of water, conventional value to calculate pound-force per square inch 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 inH₂OPaInteractive
hectopascalfrom inH₂OhPaInteractive
kilopascalfrom inH₂OkPaInteractive
megapascalfrom inH₂OMPaInteractive
gigapascalfrom inH₂OGPaInteractive
millibarfrom inH₂OmbarInteractive
barfrom inH₂ObarInteractive
standard atmospherefrom inH₂OatmInteractive
torrfrom inH₂OTorrInteractive
millimetre of mercuryfrom inH₂OmmHgInteractive
inch of mercury, conventionalfrom inH₂OinHgInteractive
millimetre of water, conventionalfrom inH₂OmmH₂OInteractive
inch of water, conventionalfrom inH₂OinH₂OInteractive
pound-force per square footfrom inH₂OpsfInteractive
pound-force per square inchfrom inH₂OpsiInteractive
kilopound-force per square inchfrom inH₂OksiInteractive
kilogram-force per square centimetrefrom inH₂Okgf/cm²Interactive

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