Pressure Converter
Convert pressure between Pascal, Bar, PSI, atm, and mmHg.
Google ad
Google ad
Google ad
Popular Calculators
- Age Calculator
- Molarity Calculator
- Dilution Calculator (C₁V₁ = C₂V₂)
- Energy Converter
- Retirement Savings Calculator
- Ohm's Law Calculator
- Mortgage Calculator
- Ratio Calculator
- Grade Calculator
- Paint Calculator
- Confidence Interval Calculator
- Data Storage Converter
- Daily Protein Intake Calculator
- Force Calculator (F = ma)
- Concrete Volume Calculator
FAQs
What is normal blood pressure in different units?
Blood pressure is measured in mmHg (millimetres of mercury). Normal blood pressure is about 120/80 mmHg — systolic/diastolic. In pascals this is 15,998/10,665 Pa. In PSI it is 1.74/1.16 PSI. The mmHg unit persists in medicine due to historical use of mercury manometers.
What is tyre pressure typically measured in?
In the US: PSI (typically 30–35 PSI for passenger cars). In Europe and Australia: bar (typically 2.1–2.5 bar) or kPa. 30 PSI = 2.07 bar = 207 kPa. Always check your vehicle's door placard or manual for the correct specification — over and under-inflation both reduce safety and fuel efficiency.
What is gauge pressure vs absolute pressure?
Absolute pressure includes atmospheric pressure in the measurement. Gauge pressure measures pressure above or below atmospheric (0 gauge = 1 atm absolute). Tyre pressure is gauge pressure — a flat tyre at '0 PSI gauge' still contains air at atmospheric pressure (14.7 PSI absolute). Vacuum gauges measure below atmospheric as negative gauge pressure.