Convert 1000 Foot-Pound/Second (ft·lbf/s) to Kilocalorie/Hour (kcal/h).

1000 Foot-Pound/Second equals 1,166.573761 Kilocalorie/Hour. Multiply 1000 by 1.1665737607.

1000 Foot-Pound/Second to Kilocalorie/Hour

Worked example: converting Foot-Pound/Second to Kilocalorie/Hour

Step 1 — start with the formula. kcal/h = ft·lbf/s × 1.1665737607
Step 2 — substitute your figure. 1000 ft·lbf/s × 1.1665737607
Step 3 — read the result. 1000 ft·lbf/s = 1,166.573761 kcal/h
Step 4 — check it in reverse. ft·lbf/s = kcal/h × 0.85721112 returns Invalid ft·lbf/s, which matches the figure you started with.

Power Converter

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Decimals:

From

To

1,166.573761

1000 ft·lbf/s = 1,166.573761 kcal/h

Formula:

kcal/h = ft·lbf/s × 1.1665737607

With your value: 1000 ft·lbf/s = 1,166.57376071 kcal/h

How big is that?

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

LED bulb (1/1.5e+2 your value)6.64 ft·lbf/s

Laptop (1/21 your value)47.9 ft·lbf/s

Microwave oven (1/1.4 your value)738 ft·lbf/s

Your value1.00e+3 ft·lbf/s

Electric kettle (2.2× your value)2.21e+3 ft·lbf/s

Family car engine (66× your value)6.64e+4 ft·lbf/s

Other Foot-Pound/Second to Kilocalorie/Hour conversions

90 ft·lbf/s to kcal/h 96 ft·lbf/s to kcal/h 100 ft·lbf/s to kcal/h 120 ft·lbf/s to kcal/h 150 ft·lbf/s to kcal/h 200 ft·lbf/s to kcal/h 500 ft·lbf/s to kcal/h Full Foot-Pound/Second to Kilocalorie/Hour converter

Foot-Pound/Second to Kilocalorie/Hour Conversion Table

Foot-Pound/Second (ft·lbf/s)	Kilocalorie/Hour (kcal/h)
0.5	0.583287
1	1.166574
2	2.333148
5	5.832869
10	11.665738
15	17.498606
20	23.331475
25	29.164344
50	58.328688
100	116.657376
250	291.64344
500	583.28688
1000	1,166.573761

Kilocalorie/Hour to Foot-Pound/Second Conversion Table

Kilocalorie/Hour (kcal/h)	Foot-Pound/Second (ft·lbf/s)
0.5	0.428606
1	0.857211
2	1.714422
5	4.286056
10	8.572111
15	12.858167
20	17.144222
25	21.430278
50	42.860556
100	85.721112
250	214.30278
500	428.60556
1000	857.21112

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.

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

Kilocalorie/Hour (kcal/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

How to Convert Foot-Pound/Second to Kilocalorie/Hour

To convert from Foot-Pound/Second (ft·lbf/s) to Kilocalorie/Hour (kcal/h), multiply the value by 1.1665737607.

Formula: kcal/h = ft·lbf/s × 1.1665737607

Reverse: ft·lbf/s = kcal/h × 0.85721112

Step-by-Step Example

Start with your value in Foot-Pound/Second. For example: 5 ft·lbf/s
Multiply by the conversion factor: 5 x 1.1665737607
The result is: 5.832869 kcal/h

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.

About Kilocalorie/Hour

The kilocalorie/hour (kcal/h) is a unit of power. One kilocalorie/hour equals 1.162222222 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 1000 Foot-Pound/Second in Kilocalorie/Hour?

1000 Foot-Pound/Second equals 1,166.573761 Kilocalorie/Hour.

How many Kilocalorie/Hour are in 1 Foot-Pound/Second?

There are exactly 1.1665737607 Kilocalorie/Hour in 1 Foot-Pound/Second. This means the conversion factor from Foot-Pound/Second to Kilocalorie/Hour is 1.1665737607.

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

The formula to convert Foot-Pound/Second to Kilocalorie/Hour is: kcal/h = ft·lbf/s × 1.1665737607. For example, to convert 10 Foot-Pound/Second to Kilocalorie/Hour, you would multiply 10 by 1.1665737607.

What is a Foot-Pound/Second?