Horsepower (Mech) to Calorie/Second Converter

Power Converter

22 units available

Decimals:

From

To

178.226547

1 hp = 178.226547 cal/s

Formula:

cal/s = hp × 178.2265467453

With your value: 1 hp = 178.22654675 cal/s

How big is that?

Everyday references on a logarithmic scale, all expressed in horsepower (mech) so you can sanity-check the result.

LED bulb (1/83 your value)0.0121 hp

Laptop (1/11 your value)0.0872 hp

Your value1.00 hp

Microwave oven (1.3× your value)1.34 hp

Electric kettle (4.0× your value)4.02 hp

Family car engine (1.2e+2× your value)121 hp

Other Horsepower (Mech) to Calorie/Second conversions

2 hp to cal/s 3 hp to cal/s 4 hp to cal/s 5 hp to cal/s 6 hp to cal/s 7 hp to cal/s 8 hp to cal/s

Horsepower (Mech) to Calorie/Second Conversion Table

Horsepower (Mech) (hp)	Calorie/Second (cal/s)
0.5	89.113273
1	178.226547
2	356.453093
5	891.132734
10	1,782.265467
15	2,673.398201
20	3,564.530935
25	4,455.663669
50	8,911.327337
100	17,822.654675
250	44,556.636686
500	89,113.273373
1000	178,226.546745

Calorie/Second to Horsepower (Mech) Conversion Table

Calorie/Second (cal/s)	Horsepower (Mech) (hp)
0.5	0.002805
1	0.005611
2	0.011222
5	0.028054
10	0.056108
15	0.084163
20	0.112217
25	0.140271
50	0.280542
100	0.561084
250	1.402709
500	2.805418
1000	5.610836

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.

Horsepower (Mech) (hp)

Power

Exact conversion

Mechanical horsepower is exactly 550 ft·lbf/s = 745.699 871 582 270 22 W.

Metric horsepower (PS) is 735.498 75 W — about 1.4 % lower.

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

Calorie/Second (cal/s)

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 Horsepower (Mech) to Calorie/Second

To convert from Horsepower (Mech) (hp) to Calorie/Second (cal/s), multiply the value by 178.2265467453.

Formula: cal/s = hp × 178.2265467453

Reverse: hp = cal/s × 0.0056108364

Step-by-Step Example

Start with your value in Horsepower (Mech). For example: 5 hp
Multiply by the conversion factor: 5 x 178.2265467453
The result is: 891.132734 cal/s

About Horsepower (Mech)

The horsepower (mech) (hp) is a unit of power. One horsepower (mech) equals 745.6998716 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 Calorie/Second

The calorie/second (cal/s) is a unit of power. One calorie/second equals 4.184 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 Calorie/Second are in 1 Horsepower (Mech)?

There are exactly 178.2265467453 Calorie/Second in 1 Horsepower (Mech). This means the conversion factor from Horsepower (Mech) to Calorie/Second is 178.2265467453.

What is the formula to convert Horsepower (Mech) to Calorie/Second?

The formula to convert Horsepower (Mech) to Calorie/Second is: cal/s = hp × 178.2265467453. For example, to convert 10 Horsepower (Mech) to Calorie/Second, you would multiply 10 by 178.2265467453.

What is a Horsepower (Mech)?