Convert

  • UNIT Convert Table
  •  1 watt = 3.41 Btu/hr
  •  1 watt = 0.86 kcal/hr
  •  1 kcal/hr = 3.97 Btu/hr
  • 1 Kcal/hr = 1.163 W
  • 1 Hp = 746 W
  • 1 Ton = 12000 BTU = 3.517 Wk = 3517 W = 3040 KCAL/H
  • 1 Hp = 8000 BTU
  • 26000 BTU = 2 Ton
  • 16000 BTU = 1 1/2 Ton
  • KCal/h * 1.163 = Watt
  •  KCal/h * 3.968 = Btu/h
  •  W * 3.412 = Btu/h
  •  W * 0.86 = Kcal/H

MECHANIC
HORSEPOWER
(HP(I))
ELECTRIC
HORSEPOWER (HP(E))
METRIC
HORSEPOWER (HP(M))
0.1KW0.080HP0.080HP0.082HP
0.1KW0.121HP0.121HP0.122HP
0.1KW0.161HP0.161HP0.163HP
0.2KW0.241HP0.241HP0.245HP
0.3KW0.335HP0.335HP0.340HP
0.4KW0.496HP0.496HP0.503HP
0.6KW0.738HP0.737HP0.748HP
0.8KW1.006HP1.005HP1.020HP
1.0KW1.341HP1.340HP1.360HP
1.1KW1.475HP1.475HP1.496HP
1.5KW2.012HP2.011HP2.039HP
2.0KW2.682HP2.681HP2.719HP
2.2KW2.950HP2.949HP2.991HP
3.0KW4.023HP4.021HP4.079HP
4.0KW5.364HP5.362HP5.438HP
5.5KW7.376HP7.373HP7.478HP
7.5KW10.058HP10.054HP10.197HP
11.0KW14.751HP14.745HP14.956HP
15.0KW20.115HP20.107HP20.394HP
18.5KW24.809HP24.799HP25.153HP
22.0KW29.502HP29.491HP29.912HP
30.0KW40.231HP40.214HP40.789HP
37.0KW49.618HP49.598HP50.306HP
45.0KW60.346HP60.322HP61.183HP
55.0KW73.756HP73.727HP74.779HP
75.0KW100.577HP100.536HP101.972HP
90.0KW120.692HP120.643HP122.366HP
110.0KW147.512HP147.453HP149.558HP
132.0KW177.015HP176.944HP179.470HP
160.0KW214.564HP214.477HP217.540HP
200.0KW268.204HP268.097HP271.924HP
250.0KW335.256HP335.121HP339.906HP
315.0KW422.422HP422.252HP428.281HP
355.0KW476.063HP475.871HP482.666HP
400.0KW536.409HP536.193HP543.849HP
500.0KW670.511HP670.242HP679.811HP
560.0KW750.972HP750.670HP761.388HP
630.0KW844.844HP844.504HP856.562HP
710.0KW952.126HP951.743HP965.332HP
800.0KW1072.818HP1072.386HP1087.698HP
900.0KW1206.920HP1206.435HP1223.660HP
1000.0KW1341.022HP1340.483HP1359.622HP

HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER250%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU