Calculation of Machine's Electricity Consumption for Costing

Historically, horsepower was the first power unit emerged and widely used around the world. In the middle ages, a horse was one of the most important elements of almost every household, that is why starting from the 18th century, with the development of first steam engines, a horsepower was chosen as a great comparative unit of power.

In our times, there are a few types of horsepower are used. In those countries where the Imperial system is practiced, mechanical or imperial horsepower is used, which is approximately equal to 745.7 watts. Electrical horsepower is a unit that is equivalent to 746 watts. It is usually used for rating electric motors and engines. There is also metric horsepower which has been used in Europe since the beginning of the 19th century. It is equivalent to roughly 735.5 watts.

Horsepower to Kilowatts Calculation

1 hp = 33,000 ft•lbf / minutes 

1 hp = 33,000 ft•lbf / 60 seconds 

1 hp = 550 x 0.3048 x 0.453592376 m•kgf/s

1 hp = 76.04022591264 kgf•m/s 

applying gravity constant

1 hp = 745.699872 N•m/s 

by definition 

1 ft = 0.3048 m 

1 lb = 0.453592376 kg

we need kilowatts

1 kW = 1000 W

1 hp = 745.699872 N•m/s • (1/1000)

1 hp = 0.745699872 kW

Hp to kW Conversion Table

Horsepower	Kilowatts	Rounded Kilowatts
1 hp	0.745699872 kW	1 kW
5 hp	3.72849936 kW	4 kW
10 hp	7.45699872 kW	7 kW
15 hp	11.18549808 kW	11 kW
20 hp	14.91399744 kW	15 kW
25 hp	18.6424968 kW	19 kW
30 hp	22.37099616 kW	22 kW
35 hp	26.09949552 kW	26 kW
40 hp	29.82799488 kW	30 kW
45 hp	33.55649424 kW	34 kW
50 hp	37.2849936 kW	37 kW
55 hp	41.01349296 kW	41 kW
60 hp	44.74199232 kW	45 kW
65 hp	48.47049168 kW	48 kW
70 hp	52.19899104 kW	52 kW
75 hp	55.9274904 kW	56 kW
80 hp	59.65598976 kW	60 kW
85 hp	63.38448912 kW	63 kW
90 hp	67.11298848 kW	67 kW
95 hp	70.84148784 kW	71 kW
Horsepower	Kilowatts	Rounded Kilowatts
100 hp	74.5699872 kW	75 kW
105 hp	78.29848656 kW	78 kW
110 hp	82.02698592 kW	82 kW
115 hp	85.75548528 kW	86 kW
120 hp	89.48398464 kW	89 kW
125 hp	93.212484 kW	93 kW
130 hp	96.94098336 kW	97 kW
135 hp	100.66948272 kW	101 kW
140 hp	104.39798208 kW	104 kW
145 hp	108.12648144 kW	108 kW
150 hp	111.8549808 kW	112 kW
155 hp	115.58348016 kW	116 kW
160 hp	119.31197952 kW	119 kW
165 hp	123.04047888 kW	123 kW
170 hp	126.76897824 kW	127 kW
175 hp	130.4974776 kW	130 kW
180 hp	134.22597696 kW	134 kW
185 hp	137.95447632 kW	138 kW
190 hp	141.68297568 kW	142 kW
195 hp	145.41147504 kW	145 kW
200 hp	149.1399744 kW	149 kW

once you worked out  your machine's KW you can easily calculate per day consumption of electricity (KWh*no. of hours machine run time per shift * no of shifts per day*no days factory run in a month)*Electricity charges per KWH (unit)

you will get your machine's electricity consumption cost which will be very helpful in determination of costing of products.

Thank You