Kips per square inch.
KSI to Zeptopascals Converter — ksi to zPa
Convert KSI (ksi) to Zeptopascal (zPa) using the exact conversion factor (1 ksi = 6.894757e+27 zeptopascal). See the formula, worked examples, and conversion table.
KSI to Zeptopascals converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Zeptopascal is 1e-21 pascal units.
Result = input x 6.89475729e+6 / 1e-21.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting KSI to Zeptopascals
KSI and Zeptopascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: Kips per square inch, and zeptopascal is 1e-21 pascal units.
Formula
zeptopascals = ksi × 6.894757e+27
This factor comes from each unit's defined relationship to the category's base unit: 1 ksi equals 6894757.29317 base units, and 1 zeptopascal equals 1e-21 base units, so dividing one by the other gives the direct ksi-to-zeptopascal factor of 6.894757e+27.
Simple example
1 ksi × 6.894757e+27 = 6.894757e+27 zPa
1 ksi = 6.894757e+27 zeptopascals.
Real-world example
35 ksi × 6.894757e+27 = 2.413165e+29 zPa
35 ksi = 2.413165e+29 zeptopascals.
Conversion table
| KSI (ksi) | Zeptopascal (zPa) |
|---|---|
| 1 ksi | 6.894757e+27 zPa |
| 5 ksi | 3.447379e+28 zPa |
| 10 ksi | 6.894757e+28 zPa |
| 25 ksi | 1.723689e+29 zPa |
| 50 ksi | 3.447379e+29 zPa |
| 100 ksi | 6.894757e+29 zPa |
Reverse conversion: Zeptopascal to KSI
6.894757e+27 zPa × 1.450377e-28 = 0.9999999575 ksi
6.894757e+27 zeptopascals = 0.9999999575 ksi.
ksi = zeptopascals × 1.450377e-28
For a page dedicated to this direction, see Zeptopascal to KSI.
Understanding the KSI (ksi)
Kips per square inch.
Understanding the Zeptopascal (zPa)
Zeptopascal is 1e-21 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zeptopascals are in 1 ksi?
1 ksi equals 6.894757e+27 zeptopascals, using the exact defined conversion factor rather than an estimate.
How do I convert ksi to zeptopascal?
Multiply the ksi value by 6.894757e+27. The converter above does this instantly to whatever precision you set.
How do I convert zeptopascal back to ksi?
Use the reverse factor: 1 zeptopascal equals 1.450377e-28 ksi. You can also use the swap control in the converter above to flip the direction instantly.
What is a ksi?
KSI (ksi) is a unit of pressure.
What is a zeptopascal?
Zeptopascal (zPa) is a unit of pressure.
Is the ksi to zeptopascal conversion exact?
Yes. Both ksi and zeptopascal are defined by fixed standards rather than physical artifacts, so the factor of 6.894757e+27 used above is exact to as many digits as you choose to display.