Convert 18 Calorie/Second (cal/s) to Foot-Pound/Second (ft·lbf/s).

18 Calorie/Second equals 55.547281 Foot-Pound/Second. Multiply 18 by 3.0859600326.

18 Calorie/Second to Foot-Pound/Second

Worked example: converting Calorie/Second to Foot-Pound/Second

Step 1 — start with the formula. ft·lbf/s = cal/s × 3.0859600326
Step 2 — substitute your figure. 18 cal/s × 3.0859600326
Step 3 — read the result. 18 cal/s = 55.547281 ft·lbf/s
Step 4 — check it in reverse. cal/s = ft·lbf/s × 0.3240482668 returns 18 cal/s, which matches the figure you started with.

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From

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55.547281

18 cal/s = 55.547281 ft·lbf/s

Formula:

ft·lbf/s = cal/s × 3.0859600326

With your value: 18 cal/s = 55.54728059 ft·lbf/s

How big is that?

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

LED bulb (1/8.4 your value)2.15 cal/s

Laptop (1/1.2 your value)15.5 cal/s

Your value18.0 cal/s

Microwave oven (13× your value)239 cal/s

Electric kettle (40× your value)717 cal/s

Family car engine (1.2e+3× your value)2.15e+4 cal/s

Other Calorie/Second to Foot-Pound/Second conversions

13 cal/s to ft·lbf/s 14 cal/s to ft·lbf/s 15 cal/s to ft·lbf/s 16 cal/s to ft·lbf/s 20 cal/s to ft·lbf/s 21 cal/s to ft·lbf/s 24 cal/s to ft·lbf/s Full Calorie/Second to Foot-Pound/Second converter

Calorie/Second to Foot-Pound/Second Conversion Table

Calorie/Second (cal/s)	Foot-Pound/Second (ft·lbf/s)
0.5	1.54298
1	3.08596
2	6.17192
5	15.4298
10	30.8596
15	46.2894
20	61.719201
25	77.149001
50	154.298002
100	308.596003
250	771.490008
500	1,542.980016
1000	3,085.960033

Foot-Pound/Second to Calorie/Second Conversion Table

Foot-Pound/Second (ft·lbf/s)	Calorie/Second (cal/s)
0.5	0.162024
1	0.324048
2	0.648097
5	1.620241
10	3.240483
15	4.860724
20	6.480965
25	8.101207
50	16.202413
100	32.404827
250	81.012067
500	162.024133
1000	324.048267

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/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

Foot-Pound/Second (ft·lbf/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 Calorie/Second to Foot-Pound/Second

To convert from Calorie/Second (cal/s) to Foot-Pound/Second (ft·lbf/s), multiply the value by 3.0859600326.

Formula: ft·lbf/s = cal/s × 3.0859600326

Reverse: cal/s = ft·lbf/s × 0.3240482668

Step-by-Step Example

Start with your value in Calorie/Second. For example: 5 cal/s
Multiply by the conversion factor: 5 x 3.0859600326
The result is: 15.4298 ft·lbf/s

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.

About Foot-Pound/Second

The foot-pound/second (ft·lbf/s) is a unit of power. One foot-pound/second equals 1.355817948 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

What is 18 Calorie/Second in Foot-Pound/Second?

18 Calorie/Second equals 55.547281 Foot-Pound/Second.

How many Foot-Pound/Second are in 1 Calorie/Second?

There are exactly 3.0859600326 Foot-Pound/Second in 1 Calorie/Second. This means the conversion factor from Calorie/Second to Foot-Pound/Second is 3.0859600326.

What is the formula to convert Calorie/Second to Foot-Pound/Second?

The formula to convert Calorie/Second to Foot-Pound/Second is: ft·lbf/s = cal/s × 3.0859600326. For example, to convert 10 Calorie/Second to Foot-Pound/Second, you would multiply 10 by 3.0859600326.

What is a Calorie/Second?