Convert 12 Calorie/Hour (cal/h) to Milliwatt (mW).

12 Calorie/Hour equals 13.946667 Milliwatt. Multiply 12 by 1.162222222.

12 Calorie/Hour = 13.946667 Milliwatt

Worked example: converting Calorie/Hour to Milliwatt

Step 1 — start with the formula. mW = cal/h × 1.162222222
Step 2 — substitute your figure. 12 cal/h × 1.162222222
Step 3 — read the result. 12 cal/h = 13.946667 mW
Step 4 — check it in reverse. cal/h = mW × 0.8604206503 returns 12 cal/h, which matches the figure you started with.

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13.946667

12 cal/h = 13.946667 mW

Formula:

mW = cal/h × 1.162222222

With your value: 12 cal/h = 13.94666666 mW

How big is that?

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

Your value12.0 cal/h

LED bulb (6.5e+2× your value)7.74e+3 cal/h

Laptop (4.7e+3× your value)5.59e+4 cal/h

Microwave oven (7.2e+4× your value)8.60e+5 cal/h

Electric kettle (2.2e+5× your value)2.58e+6 cal/h

Family car engine (6.5e+6× your value)7.74e+7 cal/h

Other Calorie/Hour to Milliwatt conversions

8 cal/h to mW 9 cal/h to mW 10 cal/h to mW 11 cal/h to mW 13 cal/h to mW 14 cal/h to mW 15 cal/h to mW Full Calorie/Hour to Milliwatt converter

Calorie/Hour to Milliwatt Conversion Table

Calorie/Hour (cal/h)	Milliwatt (mW)
0.5	0.581111
1	1.162222
2	2.324444
5	5.811111
10	11.622222
15	17.433333
20	23.244444
25	29.055556
50	58.111111
100	116.222222
250	290.555556
500	581.111111
1000	1,162.222222

Milliwatt to Calorie/Hour Conversion Table

Milliwatt (mW)	Calorie/Hour (cal/h)
0.5	0.43021
1	0.860421
2	1.720841
5	4.302103
10	8.604207
15	12.90631
20	17.208413
25	21.510516
50	43.021033
100	86.042065
250	215.105163
500	430.210325
1000	860.42065

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/Hour (cal/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

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

How to Convert Calorie/Hour to Milliwatt

To convert from Calorie/Hour (cal/h) to Milliwatt (mW), multiply the value by 1.162222222.

Formula: mW = cal/h × 1.162222222

Reverse: cal/h = mW × 0.8604206503

Step-by-Step Example

Start with your value in Calorie/Hour. For example: 5 cal/h
Multiply by the conversion factor: 5 x 1.162222222
The result is: 5.811111 mW

About Calorie/Hour

The calorie/hour (cal/h) is a unit of power. One calorie/hour equals 0.001162222222 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 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.

Frequently Asked Questions

What is 12 Calorie/Hour in Milliwatt?

12 Calorie/Hour equals 13.946667 Milliwatt.

How many Milliwatt are in 1 Calorie/Hour?

There are exactly 1.162222222 Milliwatt in 1 Calorie/Hour. This means the conversion factor from Calorie/Hour to Milliwatt is 1.162222222.

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

The formula to convert Calorie/Hour to Milliwatt is: mW = cal/h × 1.162222222. For example, to convert 10 Calorie/Hour to Milliwatt, you would multiply 10 by 1.162222222.

What is a Calorie/Hour?