Kilocalorie to Horsepower-Hour Converter

Energy Converter

27 units available

Decimals:

From

To

0.001559

1 kcal = 0.001559 hp·h

Formula:

hp·h = kcal × 0.0015585657

With your value: 1 kcal = 0.00155857 hp·h

How big is that?

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

Heartbeat (1/4.2e+3 your value)0.000239 kcal

Your value1.00 kcal

AA battery charge (2.4× your value)2.39 kcal

Slice of bread (67× your value)66.9 kcal

Daily food intake (2.0e+3× your value)2.01e+3 kcal

Litre of petrol (8.2e+3× your value)8.17e+3 kcal

Other Kilocalorie to Horsepower-Hour conversions

2 kcal to hp·h 3 kcal to hp·h 4 kcal to hp·h 5 kcal to hp·h 6 kcal to hp·h 7 kcal to hp·h 8 kcal to hp·h

Kilocalorie to Horsepower-Hour Conversion Table

Kilocalorie (kcal)	Horsepower-Hour (hp·h)
0.5	0.000779
1	0.001559
2	0.003117
5	0.007793
10	0.015586
15	0.023378
20	0.031171
25	0.038964
50	0.077928
100	0.155857
250	0.389641
500	0.779283
1000	1.558566

Horsepower-Hour to Kilocalorie Conversion Table

Horsepower-Hour (hp·h)	Kilocalorie (kcal)
0.5	320.807784
1	641.615568
2	1,283.231137
5	3,208.077841
10	6,416.155683
15	9,624.233524
20	12,832.311366
25	16,040.389207
50	32,080.778414
100	64,161.556828
250	160,403.892071
500	320,807.784142
1000	641,615.568284

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.

Kilocalorie (kcal)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

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-Hour (hp·h)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

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 Kilocalorie to Horsepower-Hour

To convert from Kilocalorie (kcal) to Horsepower-Hour (hp·h), multiply the value by 0.0015585657.

Formula: hp·h = kcal × 0.0015585657

Reverse: kcal = hp·h × 641.6155682839

Step-by-Step Example

Start with your value in Kilocalorie. For example: 5 kcal
Multiply by the conversion factor: 5 x 0.0015585657
The result is: 0.007793 hp·h

About Kilocalorie

The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.

Common uses: nutrition, diet, food labeling.

About Horsepower-Hour

The horsepower-hour (hp·h) is a unit of energy and work. One horsepower-hour equals 2.684520 × 10^+6 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

Frequently Asked Questions

How many Horsepower-Hour are in 1 Kilocalorie?

There are exactly 0.0015585657 Horsepower-Hour in 1 Kilocalorie. This means the conversion factor from Kilocalorie to Horsepower-Hour is 0.0015585657.

What is the formula to convert Kilocalorie to Horsepower-Hour?

The formula to convert Kilocalorie to Horsepower-Hour is: hp·h = kcal × 0.0015585657. For example, to convert 10 Kilocalorie to Horsepower-Hour, you would multiply 10 by 0.0015585657.

What is a Kilocalorie?