Pressure Converter

Convert between different pressure units including PSI, bar, pascal, atmosphere, mmHg, torr and more.

All conversions happen locally in your browser. No data is sent to servers or stored remotely.
Precision: 3Format: Decimal
Round (decimal places):
Number format:
14.5

1 bar = 14.5 psi

🌡️Quick Conversions

💡Tips

• 1 bar ≈ 1 atmosphere (actually 0.987 atm)

• Tire pressure often measured in psi or bar

• 1 atm = 101,325 Pa = 760 mmHg = 14.7 psi

• Use the swap button to quickly reverse conversion

📊Conversion Table

Convert 1 bar to:

Metric System

Pascal (Pa)
100,000
Kilopascal (kPa)
100
Millibar (mbar)
1,000
Hectopascal (hPa)
1,000
Standard Atmosphere (atm)
0.987
Megapascal (MPa)
0.1
Meter of Water (mH₂O)
10.2
Technical Atmosphere (at)
1.02

Imperial System

Pound per Square Inch (psi)
14.5
Inch of Mercury (inHg)
29.53
Kilopound per Square Inch (ksi)
0.015
Inch of Water (inH₂O)
401.5
Pound per Square Foot (psf)
2,089
Foot of Water (ftH₂O)
33.46
METRIC SYSTEM(8 units)
Pascal (Pa)
100,000
Kilopascal (kPa)
100
Millibar (mbar)
1,000
Hectopascal (hPa)
1,000
Standard Atmosphere (atm)
0.987
Megapascal (MPa)
0.1
Meter of Water (mH₂O)
10.2
Technical Atmosphere (at)
1.02
IMPERIAL SYSTEM(6 units)
Pound per Square Inch (psi)
14.5
Inch of Mercury (inHg)
29.53
Kilopound per Square Inch (ksi)
0.015
Inch of Water (inH₂O)
401.5
Pound per Square Foot (psf)
2,089
Foot of Water (ftH₂O)
33.46

What is a Pressure Converter?

The Pressure Converter helps you convert between PSI, bar, pascal, atmosphere, mmHg, and 20+ other pressure units. Perfect for weather forecasting, tire pressure, hydraulics, pneumatics, and medical applications.

Key Features:

  • 20+ Units: PSI, bar, pascal, atmosphere, mmHg, torr, water column
  • Multiple Applications: Weather, automotive, hydraulics, medical
  • Quick Conversions: Common pressure values instantly
  • Privacy Friendly: All calculations in your browser

Perfect For: Meteorologists, mechanics, engineers, medical professionals.

Frequently Asked Questions

How do I convert PSI to bar?

To convert PSI (pounds per square inch) to bar, multiply by 0.0689476. For example, 30 PSI = 30 × 0.0689476 = 2.07 bar. To convert bar to PSI, multiply by 14.5038 (1 bar = 14.5 PSI).

What's the difference between bar and atmosphere?

1 bar = 100,000 pascals (Pa), while 1 atmosphere (atm) = 101,325 Pa. The difference is about 1.3%. Bar is rounded metric, while atmosphere is based on average sea-level air pressure. 1 atm ≈ 1.013 bar.

What is mmHg and why is it used in medicine?

mmHg (millimeters of mercury) measures pressure as the height of mercury column it can support. 1 mmHg = 133.322 Pa. It's used in medicine (blood pressure) and meteorology because mercury barometers were historically standard measurement devices.

How many pascals are in an atmosphere?

One standard atmosphere (atm) equals exactly 101,325 pascals (Pa) or 101.325 kilopascals (kPa). This represents average sea-level atmospheric pressure and is the basis for many pressure calculations.

What's a torr and how does it relate to mmHg?

A torr is very close to mmHg: 1 torr = 1/760 of an atmosphere = 133.322 Pa, while 1 mmHg = 133.3224 Pa. The difference is negligible for most purposes. Both are used in vacuum technology and scientific applications.