To Convert:                 Into:                        Multiply By:
 ─────────────────────────── ──────────────────────────── ──────────────────
 horsepower-hours/pound      btu/pound                    2546.14
 horsepower-hours/pound      cal., gm./gram               1414.52
 horsepower-hours/pound      cu. ft.-(lb./sq. in.)/lb.    13750.0
 horsepower-hours/pound      foot-pounds/pound            1980000.0
 horsepower-hours/pound      joules/gram                  5918.35