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The conversion of 4 kpa to psi results in approximately 0.58 psi.
To convert kilopascal (kpa) to pounds per square inch (psi), you multiply the kpa value by 0.1450377 because 1 kpa equals 0.1450377 psi. So, 4 kpa times 0.1450377 gives the psi equivalent, providing an easy way to switch between these units of pressure measurement.
Conversion Result
4 kpa is approximately 0.58 psi based on the conversion factor.
Conversion Tool
Result in psi:
Conversion Formula
The formula for converting kpa to psi is: psi = kpa × 0.1450377. This works because 1 kilopascal equals 0.1450377 psi. By multiplying a kpa value by this factor, you get the pressure in psi. For example, 4 kpa times 0.1450377 equals 0.5801508 psi, which is about 0.58 psi.
Conversion Example
- Convert 10 kpa to psi:
- Step 1: Write the formula: psi = 10 × 0.1450377
- Step 2: Multiply 10 by 0.1450377: 10 × 0.1450377 = 1.450377
- Step 3: Result is approximately 1.45 psi.
- Convert 20 kpa to psi:
- Step 1: psi = 20 × 0.1450377
- Step 2: Multiply 20 by 0.1450377: 20 × 0.1450377 = 2.900754
- Step 3: Result is approximately 2.90 psi.
- Convert 15 kpa to psi:
- Step 1: psi = 15 × 0.1450377
- Step 2: Multiply 15 by 0.1450377: 15 × 0.1450377 = 2.1755655
- Step 3: Result is approximately 2.18 psi.
Conversion Chart
| kpa | psi |
|---|---|
| -21.0 | -3.046 |
| -20.0 | -2.9008 |
| -19.0 | -2.7556 |
| -18.0 | -2.6104 |
| -17.0 | -2.4652 |
| -16.0 | -2.3199 |
| -15.0 | -2.1747 |
| -14.0 | -2.0295 |
| -13.0 | -1.8843 |
| -12.0 | -1.7391 |
| -11.0 | -1.5939 |
| -10.0 | -1.4487 |
| -9.0 | -1.3035 |
| -8.0 | -1.1583 |
| -7.0 | -1.0131 |
| -6.0 | -0.8679 |
| -5.0 | -0.7227 |
| -4.0 | -0.5775 |
| -3.0 | -0.4323 |
| -2.0 | -0.2871 |
| -1.0 | -0.1419 |
| 0.0 | 0.0 |
| 1.0 | 0.145 |
| 2.0 | 0.2901 |
| 3.0 | 0.4351 |
| 4.0 | 0.5802 |
| 5.0 | 0.7252 |
| 6.0 | 0.8703 |
| 7.0 | 1.0153 |
| 8.0 | 1.1604 |
| 9.0 | 1.3054 |
| 10.0 | 1.4505 |
| 20.0 | 2.901 |
| 29.0 | 4.2043 |
Use this chart to quickly find the psi value for given kpa pressures. Read across the row for the kpa value, and see the corresponding psi in the adjacent column.
Related Conversion Questions
- How many psi are equivalent to 4 kpa?
- What is the psi value for 4 kilopascals of pressure?
- Convert 4 kpa to psi, what is the exact number?
- Is 4 kpa more or less than 1 psi?
- How do I convert 4 kpa to pounds per square inch?
- What is the pressure in psi if I have 4 kpa?
Conversion Definitions
kpa: Kilopascal (kpa) is a metric unit measuring pressure, equal to 1,000 pascals, where one pascal is a force of one newton per square meter. It is used worldwide for various pressure measurements, from weather to industrial applications.
psi: Pounds per square inch (psi) is a pressure unit common in the United States, measuring force in pounds applied over an area of one square inch. It is often used in tire pressure, hydraulics, and other pressure-related measurements.
Conversion FAQs
How accurate is the conversion factor from kpa to psi?
The conversion factor of 0.1450377 is precise for converting kpa to psi, based on exact definitions. Small variations may occur in practical applications, but for most purposes, this value provides reliable results.
Can I convert kpa to psi manually without a calculator?
Yes, by multiplying the number of kpa by 0.1450377, you can do the conversion manually. For quick estimates, you might round the factor to 0.145, but for exact results, use the full value.
Why is psi used more commonly in some countries than kpa?
Psi is traditional in the US due to historical reasons and its widespread use in industries like automotive and engineering. Kpa, part of the metric system, is more common internationally, especially in scientific and meteorological fields.
What are typical pressure ranges in kpa and psi?
Standard atmospheric pressure at sea level is approximately 101.3 kpa or 14.7 psi. Tire pressures usually range between 200-300 kpa or roughly 30-45 psi, depending on vehicle specifications.
