Pressure Converter
Instantly convert pressure between pascals, kPa, MPa, bar, psi, atmospheres, torr, mercury and water-column units.
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Pressure Converter
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Use a comma or period as the decimal separator; do not use thousands separators.
SI and bar
- Micropascal (µPa)
- 100,000,000,000
- Millipascal (mPa)
- 100,000,000
- Pascal (Pa)
- 100,000
- Hectopascal (hPa)
- 1,000
- Kilopascal (kPa)
- 100
- Megapascal (MPa)
- 0.1
- Millibar (mbar)
- 1,000
- Bar (bar)Input
- 1
1 Pa = 1 N/m²
1 hPa = 100 Pa = 1 mbar
1 mbar = 100 Pa = 1 hPa
1 bar = 100,000 Pa
Atmospheres and technical units
- Standard Atmosphere (atm)
- 0.986923
- Technical Atmosphere (at)
- 1.01972
- Kilogram-force per square centimetre (kgf/cm²)
- 1.01972
1 atm = 101,325 Pa
1 at = 98,066.5 Pa
1 kgf/cm² = 98,066.5 Pa
Mercury and vacuum
- Torr (Torr)
- 750.062
- Millitorr (mTorr)
- 750,062
- Millimetre of Mercury (mmHg)
- 750.062
- Inch of Mercury (inHg)
- 29.53
1 Torr = 101325 / 760 Pa
1 mTorr = 0.001 Torr
1 mmHg = 133.322387415 Pa; close to, but not exactly 1 Torr
1 inHg = 25.4 mmHg
Water column
- Millimetre of Water (mmH₂O)
- 10,197.2
- Centimetre of Water (cmH₂O)
- 1,019.72
- Inch of Water (inH₂O)
- 401.463
Conventional value using ρ = 1000 kg/m³ and g₀ = 9.80665 m/s²
1 cmH₂O = 10 mmH₂O
1 inH₂O = 25.4 mmH₂O
Imperial and US customary
- Pound-force per Square Inch (psi)
- 14.5038
- Kilopound-force per Square Inch (ksi)
- 0.0145038
- Pound-force per Square Foot (psf)
- 2,088.54
Derived from the international pound, international inch, and g₀
1 ksi = 1000 psi
1 psi = 144 psf
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