ConvertersUnit DirectoryHorsepower (mechanical)
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Horsepower (mechanical)

hp

cx:hp_mech · Power

1 hp = 745.69987158227022 W.

Quantity kind
Power
SI dimension
L^2 · M · T^-3
Allowed roles
Scalar
Unit system / convention
Other conventions
Registry code
hp_mech

Scope and distinctions

Mechanical horsepower convention. bhp describes a measurement location, not a separate exact unit; electrical, boiler and metric horsepower differ.

Available operations

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Verification scope

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Definition sources

  • NIST — NIST Guide to the SI, Appendix B.8

    SP 811 online conversion table accessed 2026-10-28

    Appendix B.8: mechanical horsepower = 550 ft·lbf/s; derived using exact international foot, pound and standard gravity

    Source checked:

    Exact definition is distinguished from rounded table entries; no media copied.

Definition and registry versions
Definition revision
1.0.0
Registry snapshot
0.3.0-preview.3 · preview
Definition lifecycle
candidate
Definition owner
core.metrology
Definition digest
cbbf70884e955709315a41438967ab6139d4d889fa8ab2f337f8a9d71a3f1dcf
Definition dependency digest
076f13c3d6ced3d7d09a7c1f158c515bbbfebf1eaaf761fb5206e08902f1dd1a

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