Milliwatt to Kilocalorie/Hour Converter

Power Converter

22 units available

Decimals:

From

To

0.00086

1 mW = 0.00086 kcal/h

Formula:

kcal/h = mW × 0.0008604207

With your value: 1 mW = 0.00086042 kcal/h

How big is that?

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

Your value1.00 mW

LED bulb (9.0e+3× your value)9.00e+3 mW

Laptop (6.5e+4× your value)6.50e+4 mW

Microwave oven (1.0e+6× your value)1.00e+6 mW

Electric kettle (3.0e+6× your value)3.00e+6 mW

Family car engine (9.0e+7× your value)9.00e+7 mW

Other Milliwatt to Kilocalorie/Hour conversions

2 mW to kcal/h 3 mW to kcal/h 4 mW to kcal/h 5 mW to kcal/h 6 mW to kcal/h 7 mW to kcal/h 8 mW to kcal/h

Milliwatt to Kilocalorie/Hour Conversion Table

Milliwatt (mW)	Kilocalorie/Hour (kcal/h)
0.5	0.00043
1	0.00086
2	0.001721
5	0.004302
10	0.008604
15	0.012906
20	0.017208
25	0.021511
50	0.043021
100	0.086042
250	0.215105
500	0.43021
1000	0.860421

Kilocalorie/Hour to Milliwatt Conversion Table

Kilocalorie/Hour (kcal/h)	Milliwatt (mW)
0.5	581.111111
1	1,162.222222
2	2,324.444444
5	5,811.11111
10	11,622.22222
15	17,433.33333
20	23,244.44444
25	29,055.55555
50	58,111.1111
100	116,222.2222
250	290,555.5555
500	581,111.111
1000	1,162,222.222

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.

Milliwatt (mW)

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 Milliwatt to Kilocalorie/Hour

To convert from Milliwatt (mW) to Kilocalorie/Hour (kcal/h), multiply the value by 0.0008604207.

Formula: kcal/h = mW × 0.0008604207

Reverse: mW = kcal/h × 1,162.222222

Step-by-Step Example

Start with your value in Milliwatt. For example: 5 mW
Multiply by the conversion factor: 5 x 0.0008604207
The result is: 0.004302 kcal/h

About Milliwatt

The milliwatt (mW) is a unit of power. One milliwatt equals 0.001 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

How many Kilocalorie/Hour are in 1 Milliwatt?

There are exactly 0.0008604207 Kilocalorie/Hour in 1 Milliwatt. This means the conversion factor from Milliwatt to Kilocalorie/Hour is 0.0008604207.

What is the formula to convert Milliwatt to Kilocalorie/Hour?

The formula to convert Milliwatt to Kilocalorie/Hour is: kcal/h = mW × 0.0008604207. For example, to convert 10 Milliwatt to Kilocalorie/Hour, you would multiply 10 by 0.0008604207.

What is a Milliwatt?