Atmosphere Converter - Convert atm, bar, psi, Pa & More Pressure Units
Result:
1 atm = 0.98692327 bar
How Atmosphere Conversion Works
Input Pressure
Enter pressure value
Convert to atm
Use conversion factor
Convert to Target
Apply target factor
Pressure Conversion Formulas
Common Conversions
1 atm: 101,325 Pa
1 atm: 1.01325 bar
1 atm: 14.696 psi
1 atm: 760 mmHg
Standard Values
Sea Level: 1 atm
1 bar: 0.987 atm
1 psi: 0.068 atm
1 kPa: 0.00987 atm
Pressure Conversion Table
| atm | bar | psi | kPa |
|---|---|---|---|
| 0.1 | 0.101 | 1.47 | 10.1 |
| 0.5 | 0.507 | 7.35 | 50.7 |
| 1 | 1.013 | 14.70 | 101.3 |
| 1.5 | 1.520 | 22.04 | 152.0 |
| 2 | 2.026 | 29.39 | 202.7 |
| 3 | 3.040 | 44.09 | 304.0 |
| 5 | 5.066 | 73.48 | 506.6 |
| 10 | 10.133 | 146.96 | 1013.3 |
| 15 | 15.199 | 220.44 | 1519.9 |
| 20 | 20.265 | 293.92 | 2026.5 |
| 25 | 25.331 | 367.40 | 2533.1 |
| 30 | 30.398 | 440.88 | 3039.8 |
| 40 | 40.530 | 587.84 | 4053.0 |
| 50 | 50.663 | 734.80 | 5066.3 |
| 100 | 101.325 | 1469.60 | 10132.5 |
Practice Problems
Problem 1:
Convert 2 atm to bar
Solution: 2 × 1.01325 = 2.0265 bar
Problem 2:
Convert 30 psi to atm
Solution: 30 × 0.068046 = 2.041 atm
Problem 3:
Convert 1.5 bar to psi
Solution: (1.5 ÷ 1.01325) × 14.696 = 21.76 psi
Problem 4:
Convert 500 kPa to atm
Solution: 500 × 0.00987 = 4.935 atm
Problem 5:
Convert 760 mmHg to atm
Solution: 760 × 0.00131579 = 1.000 atm
What is Atmospheric Pressure?
Atmospheric pressure is the force that air puts on everything around us. Think of it like the weight of all the air above us pushing down. At sea level, this pressure equals 1 atmosphere (1 atm).
We measure atmospheric pressure in different units like atm, bar, psi, and pascal. Each unit tells us the same thing but uses different numbers. Our atmosphere converter helps you change between these units easily.
The atmosphere converter is useful for many jobs. Weather people use it to report air pressure. Car mechanics check tire pressure. Pilots need to know air pressure at different heights. Scientists use pressure measurements in their work.
Common Pressure Units Explained
Atmosphere (atm)
This is the standard air pressure at sea level. One atmosphere equals the pressure of air at the beach on a normal day. It's the base unit that other pressure units compare to.
Bar
Bar is close to atmosphere but slightly different. One bar is almost the same as one atmosphere. Many countries use bar to measure tire pressure and weather pressure.
PSI (Pounds per Square Inch)
PSI tells us how many pounds of force push on each square inch. Americans often use PSI for tire pressure, air tanks, and water pressure in homes.
Pascal (Pa)
Pascal is the basic pressure unit in science. It's very small, so we often use kilopascals (kPa) instead. Scientists and engineers prefer pascal for exact measurements.
Torr and mmHg
These units come from old mercury barometers. Doctors use mmHg to measure blood pressure. Both units are almost the same and relate to mercury height.
Kilopascal (kPa)
Kilopascal equals 1000 pascals. It's easier to work with than regular pascals. Weather reports and car manuals often show pressure in kPa.
How to Use the Atmosphere Converter
Using our atmosphere converter is simple and fast. Just follow these easy steps to convert any pressure unit:
Enter Your Number
Type the pressure value you want to convert in the input box. You can use any number, including decimals.
Pick Starting Unit
Choose what unit your number is in from the "From" dropdown. Pick from atm, bar, psi, pascal, or other units.
Choose Target Unit
Select what unit you want to convert to in the "To" dropdown. The converter works with all pressure units.
Get Your Answer
The atmosphere converter shows your result right away. No need to click anything - it updates as you type.
Real World Examples of Pressure Conversion
Car Tire Pressure
Your car manual says to keep tires at 32 PSI. But your pressure gauge shows bar units. Use the atmosphere converter to find that 32 PSI equals 2.21 bar.
Weather Reports
The weather app shows 1013 hPa (same as mbar). You want to know this in inches of mercury. The atmosphere converter helps you find it equals 29.92 inHg.
Scuba Diving
Your dive tank shows 200 bar pressure. You want to know this in PSI for your American dive buddy. The converter shows 200 bar equals 2901 PSI.
Blood Pressure
Normal blood pressure is 120/80 mmHg. If you need this in kPa for medical records, the atmosphere converter shows 120 mmHg equals 16.0 kPa.
Why Use Our Atmosphere Converter?
Fast and Easy
Get pressure conversions in seconds. No waiting, no complicated steps. Just type and see your answer right away.
Always Accurate
Our atmosphere converter uses exact formulas. You get the right answer every time, with proper rounding for easy reading.
Works Everywhere
Use the converter on your phone, tablet, or computer. It works great on all devices and screen sizes.
Completely Free
No cost, no sign-up, no limits. Use our atmosphere converter as much as you want, whenever you need it.
All Units Included
Convert between atm, bar, psi, pascal, torr, mmHg, and more. All the pressure units you need in one place.
Learn While Converting
See formulas, examples, and explanations. Understand how pressure conversion works, not just get answers.
Daily Uses of Atmosphere Conversion
Weather forecasters report barometric pressure in different units
Tire pressure gauges display readings in psi or bar
Scuba diving equipment measures tank pressure in bar or psi
Industrial equipment operates at specific pressure requirements
Medical devices monitor blood pressure in mmHg units
Frequently Asked Questions
What is 1 atmosphere in other pressure units?
One atmosphere equals 101,325 pascals, 1.01325 bar, 14.696 PSI, 760 mmHg, and 760 torr. These are the standard conversions that our atmosphere converter uses.
How accurate is the atmosphere converter?
Our converter uses official conversion factors and shows results to 8 decimal places. It then removes extra zeros for easy reading. The accuracy is perfect for all normal uses.
Can I convert negative pressure values?
Yes, the atmosphere converter works with negative numbers too. This is useful for vacuum measurements or pressure differences below atmospheric pressure.
What's the difference between bar and atmosphere?
Bar and atmosphere are very close but not exactly the same. One atmosphere equals 1.01325 bar. Bar is slightly smaller than atmosphere, but the difference is small for most uses.
Why do we need different pressure units?
Different fields use different units. Scientists prefer pascals, Americans use PSI, Europeans use bar, and doctors use mmHg. The atmosphere converter helps everyone work together.
Is the atmosphere converter free to use?
Yes, completely free! No registration, no limits, no hidden costs. Use our atmosphere converter as much as you need for personal or professional work.