Poundal to Petanewton Conversion

Comparison Chart of Poundal to Petanewton units to understand their conversion accurately.


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Poundal (FPS Absolute Force Unit)

Introduction : A poundal is the force required to accelerate a one-pound mass at one foot per second squared. It is equal to approximately 0.138255 newtons and comes from the absolute FPS (foot-pound-second) system of units.

History & Origin : Created as part of the British Absolute FPS system, the poundal addressed the need for consistent force definitions based on Newton’s second law. It was used primarily in physics education and classical mechanics literature in the early 20th century.

Current Use : Now largely obsolete, poundals are occasionally used in physics textbooks and legacy academic documents. They offer insight into early mechanics frameworks and are referenced in educational settings focused on classical dynamics.

Petanewton (Extreme Scientific Force Unit)

Introduction : One petanewton is 10^15 newtons—a unit used in hypothetical physics models to describe massive interactions such as gravitational forces between large celestial bodies.

History & Origin : Though practically unused in engineering, the petanewton emerged from SI’s prefix system for completeness. It remains a theoretical value in astrophysical computations.

Current Use : Used in simulations of gravitational forces between stars or during events like supernovae. It is not applied in real-world technology due to the extraordinary magnitude.

Conversion of Poundal to all other Units

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References

• NIST (US Government)
• Encyclopaedia Britannica