1 atmosphere equals approximately 101.325 kilopascals (kPa). This means that when you convert from atmospheres to kPa, you multiply the value in atmospheres by this number.
Since 1 atmosphere is defined based on the pressure exerted by a 760 mmHg column of mercury at sea level, it standardizes pressure measurements worldwide. Converting to kPa involves using the precise conversion factor, ensuring consistency across scientific and practical applications.
Conversion Result for 1 atmosphere to kPa
1 atmosphere is equal to 101.325 kPa.
Conversion Tool
Result in kpa:
Conversion Formula
The conversion from atmosphere to kPa uses the formula: kPa = atm * 101.325. This works because 1 atmosphere equals exactly 101.325 kPa by definition. For example, if you have 2 atmospheres, multiply 2 by 101.325 to get 202.65 kPa. This mathematical operation ensures precise conversion based on standard units.
Conversion Example
- Example 1: Convert 3 atmospheres to kPa.
- Multiply 3 by 101.325.
- Result is 3 * 101.325 = 303.975 kPa.
- Example 2: Convert 0.5 atmospheres to kPa.
- Multiply 0.5 by 101.325.
- Result is 0.5 * 101.325 = 50.6625 kPa.
- Example 3: Convert 10 atmospheres to kPa.
- Multiply 10 by 101.325.
- Result is 10 * 101.325 = 1013.25 kPa.
- Example 4: Convert 1.2 atmospheres to kPa.
- Multiply 1.2 by 101.325.
- Result is 1.2 * 101.325 = 121.59 kPa.
Conversion Chart
| Atmospheres | Kilopascals (kPa) |
|---|---|
| -24.0 | -2431.8 |
| -20.0 | -2026.5 |
| -15.0 | -1519.975 |
| -10.0 | -1013.25 |
| -5.0 | -506.625 |
| 0.0 | 0.0 |
| 1.0 | 101.325 |
| 5.0 | 506.625 |
| 10.0 | 1013.25 |
| 15.0 | 1519.875 |
| 20.0 | 2026.5 |
| 25.0 | 2533.125 |
| 26.0 | 2628.825 |
Use this chart to quickly find the kPa equivalent for any given atmosphere value. Locate the number of atmospheres in the first column and read across to see its value in kPa.
Related Conversion Questions
- How many kilopascals are in 2 atmospheres?
- What is the pressure in kPa of 0.75 atmospheres?
- How do I convert 5 atm to pascals?
- What is 1 atmosphere expressed in kilopascals?
- Can I convert 10 atm to kPa using a calculator?
- What is the pressure in kPa for 3.5 atmospheres?
- How does atmospheric pressure relate to kilopascals in weather measurements?
Conversion Definitions
Atmosphere
An atmosphere (atm) is a unit of pressure based on the average pressure exerted by the Earth’s atmosphere at sea level, equal to 101,325 pascals, used to measure gas pressures in science and engineering.
Kilopascal
A kilopascal (kPa) is a metric pressure unit equal to 1,000 pascals, widely used for measuring pressure in various fields like meteorology, engineering, and physics, providing a convenient scale for high and low-pressure readings.
Conversion FAQs
Why is 1 atm equal to 101.325 kPa?
This equivalence is based on the definition of standard atmospheric pressure, which is the pressure exerted by a 760 mmHg column of mercury at sea level. This standardization helps in consistent scientific measurements worldwide.
How precise is the conversion factor for atm to kPa?
The conversion factor 101.325 is exact by definition, making the conversion highly precise for scientific calculations. Minor variations might occur in real-world measurements due to environmental conditions, but the factor remains standard.
Can I convert pressure units other than atmospheres to kPa?
Yes, you can convert various pressure units to kPa using appropriate conversion factors. For example, pounds per square inch (psi) or millimeters of mercury (mmHg) require different constants to convert into kPa.