Convert pascals to inches of mercury instantly with accurate formula
Pressure Conversion Tools
Instant Conversion
Get accurate results immediately
Multiple Units
SI, industrial, imperial, and scientific units
Precise Results
High precision calculations
How to Convert Pressure Units Online
Step-by-Step Instructions:
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1
Enter Pressure Value: Type the pressure measurement you want to convert in the "From" field.
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2
Select Source Unit: Choose the unit you're converting from (pascals, bar, PSI, atm, etc.).
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3
Select Target Unit: Choose the unit you want to convert to from the dropdown menu.
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Get Conversion Results: Results display instantly with up to 6 decimal places for accuracy.
Common Pressure Conversions:
- 1 atm = 101,325 Pa
- 1 bar = 14.5038 PSI
- 1 atm = 760 Torr
- 1 atm = 1013.25 mbar
- 1 atm = 29.9213 inHg
- 1 bar = 100 kPa
Supported Pressure Units
📐 SI Units
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Pascal (Pa): The SI standard unit of pressure, equal to one newton per square meter
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Kilopascal (kPa): 1000 pascals, commonly used in engineering and tire pressure
🏭 Industrial Units
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Bar: Widely used in industry, equal to 100,000 pascals
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Millibar (mbar): Used in meteorology for atmospheric pressure readings
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PSI: Pounds per square inch, common in US tire pressure and hydraulics
🔬 Scientific & Aviation
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Atmosphere (atm): Standard atmospheric pressure at sea level
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Torr (mmHg): Used in medical and vacuum applications
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Inches of Mercury (inHg): Used in aviation and US weather reports
When to Use Pressure Conversion
Tire Pressure
Convert between PSI, bar, and kPa for checking and inflating vehicle tires correctly.
Weather Forecasting
Convert millibar, inHg, and hPa readings for understanding barometric pressure changes.
Aviation
Convert between inHg, hPa, and millibar for altimeter settings and flight planning.
Medical
Convert torr and mmHg for blood pressure readings and medical equipment calibration.
Industrial
Convert bar, PSI, and kPa for hydraulic systems, compressors, and process control.
Scuba Diving
Convert bar and atm for dive planning, tank pressure, and decompression calculations.
Frequently Asked Questions
How do I convert PSI to bar?
To convert PSI to bar, divide the pressure value by 14.5038. For example, 30 PSI equals approximately 2.07 bar. Our converter does this calculation instantly with high precision.
What is standard atmospheric pressure?
Standard atmospheric pressure at sea level is defined as 1 atm, which equals 101,325 Pa, 1013.25 mbar, 1.01325 bar, 14.696 PSI, 760 torr, or 29.921 inHg.
What is the difference between torr and mmHg?
Torr and mmHg are nearly identical. 1 torr is defined as exactly 1/760 of a standard atmosphere. They are used interchangeably in medical and vacuum applications for measuring blood pressure and vacuum levels.
What tire pressure should I use?
Typical car tire pressure is 30-35 PSI (2.07-2.41 bar or 207-241 kPa). Check your vehicle's door jamb sticker or owner's manual for the recommended pressure.
Is this pressure converter accurate?
Yes, our converter uses precise conversion factors based on international standards and displays results with up to 6 decimal places for maximum accuracy.
Is the pressure converter free?
Yes, completely free with no registration, downloads, or hidden fees. Convert unlimited pressure measurements anytime on any device.
Quick Reference Conversion Table
| From | To | Multiply By | Example |
|---|---|---|---|
| Bar | PSI | 14.5038 | 2 bar = 29.01 PSI |
| PSI | Bar | 0.068948 | 30 PSI = 2.07 bar |
| Atmospheres | Pascals | 101,325 | 1 atm = 101,325 Pa |
| Bar | Kilopascals | 100 | 1 bar = 100 kPa |
| Atmospheres | Torr | 760 | 1 atm = 760 Torr |
| Atmospheres | inHg | 29.9213 | 1 atm = 29.92 inHg |
| Millibar | Pascals | 100 | 1013 mbar = 101,300 Pa |
| PSI | Kilopascals | 6.89476 | 30 PSI = 206.8 kPa |