Horsepower to Kilocalories per Hour Conversion (hp to kcal/h)

How to Convert Horsepower to Kilocalories per Hour

To convert horsepower to a kilocalorie per hour measurement, use one of the formulas below.

Mechanical Horsepower to Kilocalories Per Hour

Formula to convert mechanical horsepower to kilocalories per hour:

kilocalories per hour = hp(I) × 641.615691

Since one mechanical horsepower is equal to 641.615691 kilocalories per hour, the formula to find kilocalories per hour is to multiply mechanical horsepower by 641.615691.

For example, here's how to convert 5 mechanical horsepower to kilocalories per hour using the formula.

5 hp(I) = (5 × 641.615691) = 3,208.078455 kcal/h

Electric Horsepower to Kilocalories Per Hour

Formula to convert electric horsepower to kilocalories per hour:

kilocalories per hour = hp(E) × 641.873928

Since one electric horsepower is equal to 641.873928 kilocalories per hour, the formula to find kilocalories per hour is to multiply electric horsepower by 641.873928.

For example, here's how to convert 5 electric horsepower to kilocalories per hour using the formula.

5 hp(E) = (5 × 641.873928) = 3,209.369639 kcal/h

Metric Horsepower to Kilocalories Per Hour

Formula to convert metric horsepower to kilocalories per hour:

kilocalories per hour = hp(M) × 632.838434

Since one metric horsepower is equal to 632.838434 kilocalories per hour, the formula to find kilocalories per hour is to multiply metric horsepower by 632.838434.

For example, here's how to convert 5 metric horsepower to kilocalories per hour using the formula.

5 hp(M) = (5 × 632.838434) = 3,164.192168 kcal/h

Boiler Horsepower to Kilocalories Per Hour

Formula to convert boiler horsepower to kilocalories per hour:

kilocalories per hour = hp(S) × 8,440.297981

Since one boiler horsepower is equal to 8,440.297981 kilocalories per hour, the formula to find kilocalories per hour is to multiply boiler horsepower by 8,440.297981.

For example, here's how to convert 5 boiler horsepower to kilocalories per hour using the formula.

5 hp(S) = (5 × 8,440.297981) = 42,201.489905 kcal/h

How Many Kilocalories per Hour Are in a Horsepower?

There are 641.615691 kilocalories per hour in a horsepower, which is why we use this value in the formula above.

1 hp = 641.615691 kcal/h

Horsepower and kilocalories per hour are both units used to measure power. Keep reading to learn more about each unit of measure.

Horsepower

There are several types of horsepower, including mechanical, electrical, metric, boiler, brake, and indicated, and they all have different applications in industry. Mechanical and electrical are the most commonly used.

Mechanical Horsepower

Mechanical horsepower is often used to measure the output of engines and motors in North America. One mechanical horsepower is equal to 745.69987158227022 watts.

The mechanical horsepower is a US customary and imperial unit of power. Mechanical horsepower can be abbreviated as hp(I); for example, 1 mechanical horsepower can be written as 1 hp(I).

Electric Horsepower

Electric horsepower is used to measure the output of electric motors and other electrical machines in the US. One electric horsepower is equal to exactly 746 watts.

The electric horsepower is a US customary and imperial unit of power. Electric horsepower can be abbreviated as hp(E); for example, 1 electric horsepower can be written as 1 hp(E).

Metric Horsepower

One metric horsepower is the power needed to one metric horsepower as the lift a 75 kilogram mass at at one meter per second.^[1] One metric horsepower is equal to 735.49875 watts.

The metric horsepower is a non-SI metric unit for power. Metric horsepower can be abbreviated as hp(M), and are also sometimes abbreviated as PS, cv, hk, pk, ks, or ch. For example, 1 metric horsepower can be written as 1 hp(M), 1 PS, 1 cv, 1 hk, 1 pk, 1 ks, or 1 ch.

Boiler Horsepower

Boiler horsepower is used to measure the power of a boiler to generate steam. One boiler horsepower is equal to the power needed to evaporate 34.5 pounds in one hour.^[2]

Boiler horsepower can be abbreviated as hp(S); for example, 1 boiler horsepower can be written as 1 hp(S).

The term horsepower was adopted by Scottish inventor James Watt to measure the power output of his steam engine and to compare that power with that of horses horses.^[3] Horsepower were later used to measure the power output of piston and turbine engines and electrical motors.

Try our engine horsepower calculator to calculate the power of a motor.

Kilocalories Per Hour

One kilocalorie per hour is equal to one kilocalorie, or 1,000 times the energy needed to heat one gram of water 1 °C, for one hour.

Kilocalories per hour can be abbreviated as kcal/h; for example, 1 kilocalorie per hour can be written as 1 kcal/h.

Kilocalories Per Hour	Mechanical Horsepower	Electric Horsepower	Metric Horsepower	Boiler Horsepower
1 kcal/h	0.001559	0.001558	0.00158	0.000118
2 kcal/h	0.003117	0.003116	0.00316	0.000237
3 kcal/h	0.004676	0.004674	0.004741	0.000355
4 kcal/h	0.006234	0.006232	0.006321	0.000474
5 kcal/h	0.007793	0.00779	0.007901	0.000592
6 kcal/h	0.009351	0.009348	0.009481	0.000711
7 kcal/h	0.01091	0.010906	0.011061	0.000829
8 kcal/h	0.012469	0.012464	0.012641	0.000948
9 kcal/h	0.014027	0.014021	0.014222	0.001066
10 kcal/h	0.015586	0.015579	0.015802	0.001185
20 kcal/h	0.031171	0.031159	0.031604	0.00237
30 kcal/h	0.046757	0.046738	0.047405	0.003554
40 kcal/h	0.062343	0.062318	0.063207	0.004739
50 kcal/h	0.077928	0.077897	0.079009	0.005924
60 kcal/h	0.093514	0.093476	0.094811	0.007109
70 kcal/h	0.1091	0.109056	0.110613	0.008294
80 kcal/h	0.124685	0.124635	0.126415	0.009478
90 kcal/h	0.140271	0.140214	0.142216	0.010663
100 kcal/h	0.155857	0.155794	0.158018	0.011848
200 kcal/h	0.311713	0.311588	0.316036	0.023696
300 kcal/h	0.46757	0.467382	0.474055	0.035544
400 kcal/h	0.623426	0.623175	0.632073	0.047392
500 kcal/h	0.779283	0.778969	0.790091	0.05924
600 kcal/h	0.935139	0.934763	0.948109	0.071088
700 kcal/h	1.091	1.0906	1.1061	0.082935
800 kcal/h	1.2469	1.2464	1.2641	0.094783
900 kcal/h	1.4027	1.4021	1.4222	0.106631
1000 kcal/h	1.5586	1.5579	1.5802	0.118479

Horsepower to Kilocalories per Hour Converter

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