Calories to Milliwatts (cal → mW)

4,184.0

1.0000 cal = 4,184.0 mW

Formula

1 cal = 4184 mW
MilliwattsCalories (Swap Units)

Conversion Table

calmW
00
1.00004,184.0
2.00008,368.0
3.000012,552
4.000016,736
5.000020,920
6.000025,104
7.000029,288
8.000033,472
9.000037,656
10.00041,840
11.00046,024
12.00050,208
13.00054,392
14.00058,576
15.00062,760
16.00066,944
17.00071,128
18.00075,312
19.00079,496
calmW
20.00083,680
21.00087,864
22.00092,048
23.00096,232
24.000100,420
25.000104,600
26.000108,780
27.000112,970
28.000117,150
29.000121,340
30.000125,520
31.000129,700
32.000133,890
33.000138,070
34.000142,260
35.000146,440
36.000150,620
37.000154,810
38.000158,990
39.000163,180
calmW
40.000167,360
41.000171,540
42.000175,730
43.000179,910
44.000184,100
45.000188,280
46.000192,460
47.000196,650
48.000200,830
49.000205,020
50.000209,200
51.000213,380
52.000217,570
53.000221,750
54.000225,940
55.000230,120
56.000234,300
57.000238,490
58.000242,670
59.000246,860
calmW
60.000251,040
61.000255,220
62.000259,410
63.000263,590
64.000267,780
65.000271,960
66.000276,140
67.000280,330
68.000284,510
69.000288,700
70.000292,880
71.000297,060
72.000301,250
73.000305,430
74.000309,620
75.000313,800
76.000317,980
77.000322,170
78.000326,350
79.000330,540

Calories to Milliwatts Conversion

Converting Calories (cal) to Milliwatts (mW) is a common energy and power conversion. 1 cal equals 4,184 mW. For example, 100 cal is equal to 418,400 mW.

Quick Mental Math: Calories to Milliwatts

If 0.01195 calories is released in 1 second, it is about 50 milliwatts.

Why is converting Calories to Milliwatts tricky?

calories to milliwatts mixes energy with power, so the missing time step is the trap: the same energy gives different power over 1 second and 1 hour.

Quick Reference Values

1 cal = 4,184 mW. 5 cal = 20,920 mW. 10 cal = 41,840 mW. 25 cal = 104,600 mW. 50 cal = 209,200 mW. 100 cal = 418,400 mW.

What is Calories?

Calories (cal) is a unit of energy and power. The calorie (cal) is defined as exactly 4.184 joules. It quantifies the energy needed to raise the temperature of one gram of water by 1°C under standard conditions. The calorie is widely used in chemistry and nutrition to express energy content [bipm-si-brochure]. The calorie was introduced in the early 19th century by Nicolas Clément and standardized internationally in the 20th century. It was adopted for practical energy measurement in chemistry and food science before the joule became the SI unit [bipm-si-brochure]. Calories remain common in food labeling, nutrition, and chemistry worldwide. The dietary Calorie (kcal) is prevalent in the US, Europe, and many countries while scientific contexts prefer the joule [bipm-si-brochure].

What is Milliwatts?

Milliwatts (mW) is a unit of energy and power. The milliwatt is a unit of power equal to one-thousandth of a watt, or 0.001 watts. It measures the rate of energy transfer or conversion and is derived directly from the SI base unit watt, which equals one joule per second. Milliwatts are frequently used in electronics and telecommunications to measure low power outputs [bipm-si-brochure]. The watt was named after James Watt and standardized in the late 19th century during the development of the SI system. The milliwatt emerged as a convenient subdivision for low-power electronic devices and instrumentation [bipm-si-brochure]. Milliwatts are standard in electronics, laser devices, and radio communications worldwide. Regulatory agencies and manufacturers specify power levels of small devices, such as laser pointers and Bluetooth transmitters, using milliwatts [nist-si-guide].

Common Misspellings

People often search for this conversion using these alternate spellings: calorie, cal, calory, calo, milliwatt, milwatt, milliwat, milwatts. All of these refer to the Calories to Milliwatts conversion.

Common Conversions