Calorie/Hour to Horsepower (Elec) Converter

Power Converter

22 units available

Decimals:

From

To

1.557939e-6

1 cal/h = 1.557939e-6 hp (E)

Formula:

hp (E) = cal/h × 0.0000015579

With your value: 1 cal/h = 1.557939e-6 hp (E)

How big is that?

Everyday references on a logarithmic scale, all expressed in calorie/hour so you can sanity-check the result.

Your value1.00 cal/h

LED bulb (7.7e+3× your value)7.74e+3 cal/h

Laptop (5.6e+4× your value)5.59e+4 cal/h

Microwave oven (8.6e+5× your value)8.60e+5 cal/h

Electric kettle (2.6e+6× your value)2.58e+6 cal/h

Family car engine (7.7e+7× your value)7.74e+7 cal/h

Other Calorie/Hour to Horsepower (Elec) conversions

2 cal/h to hp (E)3 cal/h to hp (E)4 cal/h to hp (E)5 cal/h to hp (E)6 cal/h to hp (E)7 cal/h to hp (E)8 cal/h to hp (E)

Calorie/Hour to Horsepower (Elec) Conversion Table

Calorie/Hour (cal/h)	Horsepower (Elec) (hp (E))
0.5	7.789693e-7
1	1.557939e-6
2	3.115877e-6
5	7.789693e-6
10	1.557939e-5
15	2.336908e-5
20	3.115877e-5
25	3.894847e-5
50	7.789693e-5
100	0.000156
250	0.000389
500	0.000779
1000	0.001558

Horsepower (Elec) to Calorie/Hour Conversion Table

Horsepower (Elec) (hp (E))	Calorie/Hour (cal/h)
0.5	320,936.902547
1	641,873.805094
2	1,283,747.610188
5	3,209,369.02547
10	6,418,738.05094
15	9,628,107.076411
20	12,837,476.101881
25	16,046,845.127351
50	32,093,690.254702
100	64,187,380.509405
250	160,468,451.273512
500	320,936,902.547024
1000	641,873,805.094049

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Calorie/Hour (cal/h)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Horsepower (Elec) (hp (E))

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Calorie/Hour to Horsepower (Elec)

To convert from Calorie/Hour (cal/h) to Horsepower (Elec) (hp (E)), multiply the value by 1.557939e-6.

Formula: hp (E) = cal/h × 0.0000015579

Reverse: cal/h = hp (E) × 641,873.8050940485

Step-by-Step Example

Start with your value in Calorie/Hour. For example: 5 cal/h
Multiply by the conversion factor: 5 x 1.557939e-6
The result is: 7.789693e-6 hp (E)

About Calorie/Hour

The calorie/hour (cal/h) is a unit of power. One calorie/hour equals 0.001162222222 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Horsepower (Elec)

The horsepower (elec) (hp (E)) is a unit of power. One horsepower (elec) equals 746 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

How many Horsepower (Elec) are in 1 Calorie/Hour?

There are exactly 1.557939e-6 Horsepower (Elec) in 1 Calorie/Hour. This means the conversion factor from Calorie/Hour to Horsepower (Elec) is 1.557939e-6.

What is the formula to convert Calorie/Hour to Horsepower (Elec)?

The formula to convert Calorie/Hour to Horsepower (Elec) is: hp (E) = cal/h × 0.0000015579. For example, to convert 10 Calorie/Hour to Horsepower (Elec), you would multiply 10 by 1.557939e-6.

What is a Calorie/Hour?