psi to kPa Converter - Pounds per Square Inch to Kilopascal
Pounds per Square Inch (psi) to Kilopascal (kPa)
Direct answer
1 psi = 6.89476 kPa
kPa = psi × 6.89476
Converter
Conversion formula
kPa = psi × 6.89476
psi = kPa × 0.145037680789
Example: 10 psi = 10 × 6.89476 = 68.9476 kPa.
Common conversion table
| psi | kPa |
|---|---|
| 1 psi | 6.89476 kPa |
| 2 psi | 13.78952 kPa |
| 5 psi | 34.4738 kPa |
| 10 psi | 68.9476 kPa |
| 20 psi | 137.8952 kPa |
| 50 psi | 344.738 kPa |
| 100 psi | 689.476 kPa |
| 1,000 psi | 6,894.76 kPa |
Conversion derivation
Express both psi and kPa in the same base unit Pa (pascal), then cancel the shared base unit.
- 1
Rewrite psi in the base unit
- 2
Rewrite kPa in the base unit
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Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
PSI to kPa Conversion Factor Explanation
This conversion factor is based on expressing both units of pressure in their equivalent values within the same base unit, the pascal (Pa). The factor is derived by comparing the defined magnitude of one pound per square inch (psi) to the magnitude of one kilopascal (kPa) when both are stated in pascals.
Definition
The pound per square inch (psi) is an imperial unit of pressure, while the kilopascal (kPa) is a metric unit defined as one thousand pascals (Pa).
Principle
The conversion works because both units are defined relative to the pascal. By converting psi to pascals and then dividing by the number of pascals in a kilopascal, you obtain the direct conversion factor.
Assumptions
- The conversion factor assumes the standard definition where 1 psi is exactly equal to 6,894.76 Pa.
- The conversion assumes the standard definition where 1 kPa is exactly equal to 1,000 Pa.
Cautions
- The provided conversion factor (6.89476) is exact based on these standard definitions. In practice, you should round your final result to the number of significant figures appropriate for your application.
- This conversion is for pressure units only and does not account for variations in gravity or other environmental factors that might affect measured pressure.
FAQ
How many kPa are in 1 psi?
1 psi = 6.89476 kPa.
How many kPa are in 10 psi?
10 psi = 68.9476 kPa.
How many kPa are in 100 psi?
100 psi = 689.476 kPa.
What is the formula to convert psi to kPa?
Use kPa = psi × 6.89476.
How many psi are in 1 kPa?
1 kPa = 0.145037680789 psi.
What should I check when converting psi to kPa?
Use the conversion factor and round the result to the precision required by your calculation.