Terapascal is 1000000000000 pascal units.
Terapascals to KSI Converter — TPa to ksi
Convert Terapascal (TPa) to KSI (ksi) using the exact conversion factor (1 terapascal = 145,037.7377 ksi). See the formula, worked examples, and conversion table.
Terapascals to KSI converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Kips per square inch.
Result = input x 1e+12 / 6.89475729e+6.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Terapascals to KSI
Terapascal and KSI both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Terapascal is 1000000000000 pascal units, and kips per square inch.
Formula
ksi = terapascals × 145037.73773
This factor comes from each unit's defined relationship to the category's base unit: 1 terapascal equals 1e+12 base units, and 1 ksi equals 6894757.29317 base units, so dividing one by the other gives the direct terapascal-to-ksi factor of 145037.73773.
Simple example
1 TPa × 145037.7377 = 145,037.7377 ksi
1 terapascal = 145,037.7377 ksi.
Real-world example
100 TPa × 145037.7377 = 14,503,773.77 ksi
100 terapascals = 14,503,773.77 ksi.
Conversion table
| Terapascal (TPa) | KSI (ksi) |
|---|---|
| 1 TPa | 145,037.7377 ksi |
| 10 TPa | 1,450,377.377 ksi |
| 50 TPa | 7,251,886.887 ksi |
| 100 TPa | 14,503,773.77 ksi |
| 500 TPa | 72,518,868.87 ksi |
| 1,000 TPa | 145,037,737.7 ksi |
Reverse conversion: KSI to Terapascal
1 ksi × 0.000006894757293 = 0.0000068948 TPa
1 ksi = 0.0000068948 terapascals.
terapascals = ksi × 0.00000689475729317
For a page dedicated to this direction, see KSI to Terapascal.
Understanding the Terapascal (TPa)
Terapascal is 1000000000000 pascal units.
Understanding the KSI (ksi)
Kips per square inch.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ksi are in 1 terapascal?
1 terapascal equals 145,037.7377 ksi, using the exact defined conversion factor rather than an estimate.
How do I convert terapascal to ksi?
Multiply the terapascal value by 145037.7377. The converter above does this instantly to whatever precision you set.
How do I convert ksi back to terapascal?
Use the reverse factor: 1 ksi equals 0.0000068948 terapascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a terapascal?
Terapascal (TPa) is a unit of engineering.
What is a ksi?
KSI (ksi) is a unit of engineering.
Is the terapascal to ksi conversion exact?
Yes. Both terapascal and ksi are defined by fixed standards rather than physical artifacts, so the factor of 145037.7377 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.