Hi BUNDY!
1 hp = 2546.6 BTU/h
1 hp = 0.7457 kW
1 ton refrigerating = 3.519 kW
1 kW = 3415.2 BTU/h
Remenber that BTU means energy (not related with time). If you want power, give the time for the energy to be delivered, BTU/second, BTU/hour ...
cheers
zzzo