• mWh   J
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The milliwatt-hour (mWh) might seem like a small unit of energy, but when you consider the burgeoning demand for portable technology, it plays a vital role in everyday electronics. This unit is commonly used to measure the energy capacity of small batteries, such as those found in smartphones, earbuds, and other miniature devices. Interestingly, even though a single milliwatt-hour is just a thousandth of a watt-hour, the overall efficiency of devices is often improved by optimizing such seemingly tiny units of energy.

For context, when you binge your favorite series on a compact digital device, you can thank the precise calculation of mWh for maximizing battery life without sacrificing performance. As technology advances, the milliwatt-hour will continue to dictate innovations in energy efficiency, making our devices smarter and more sustainable.

Did you know?

Named after the English physicist James Prescott Joule, the joule is a unit of energy in the International System of Units. A single joule represents the energy transferred when a force of one newton acts over a meter. To put it in everyday terms, the energy used to lift a small apple one meter off the ground is approximately one joule. Interestingly, the joule is also the energy released in one second by a current of one ampere through a resistance of one ohm, showcasing its versatility across both mechanical and electrical domains.

While joules measure energy, they can also power curiosity. For instance, the daily recommended caloric intake for an average adult translates to roughly 8,700,000 joules. This highlights the joule’s role not only in physics but also in our nutrition and daily energy consumption, offering a glimpse into the complex interplay between energy, food, and our bodies.

> Milliwatt-hours to Joules Conversion Table

Milliwatt-hours Joules
0 mWh 0 J
1000 mWh 3600 J
2000 mWh 7200 J
3000 mWh 10800 J
4000 mWh 14400 J
5000 mWh 18000 J
6000 mWh 21600 J
7000 mWh 25200 J
8000 mWh 28800 J
9000 mWh 32400 J
10000 mWh 36000 J
11000 mWh 39600 J
12000 mWh 43200 J
13000 mWh 46800 J
14000 mWh 50400 J
15000 mWh 54000 J
16000 mWh 57600 J
17000 mWh 61200 J
18000 mWh 64800 J
19000 mWh 68400 J
20000 mWh 72000 J
21000 mWh 75600 J
22000 mWh 79200 J
23000 mWh 82800 J
24000 mWh 86400 J
25000 mWh 90000 J
26000 mWh 93600 J
27000 mWh 97200 J
28000 mWh 100800 J
29000 mWh 104400 J
30000 mWh 108000 J
31000 mWh 111600 J
32000 mWh 115200 J
33000 mWh 118800 J
34000 mWh 122400 J
35000 mWh 126000 J
36000 mWh 129600 J
37000 mWh 133200 J
38000 mWh 136800 J
39000 mWh 140400 J
40000 mWh 144000 J
41000 mWh 147600 J
42000 mWh 151200 J
43000 mWh 154800 J
44000 mWh 158400 J
45000 mWh 162000 J
46000 mWh 165600 J
47000 mWh 169200 J
48000 mWh 172800 J
49000 mWh 176400 J
50000 mWh 180000 J
51000 mWh 183600 J
52000 mWh 187200 J
53000 mWh 190800 J
54000 mWh 194400 J
55000 mWh 198000 J
56000 mWh 201600 J
57000 mWh 205200 J
58000 mWh 208800 J
59000 mWh 212400 J
60000 mWh 216000 J
61000 mWh 219600 J
62000 mWh 223200 J
63000 mWh 226800 J
64000 mWh 230400 J
65000 mWh 234000 J
66000 mWh 237600 J
67000 mWh 241200 J
68000 mWh 244800 J
69000 mWh 248400 J
70000 mWh 252000 J
71000 mWh 255600 J
72000 mWh 259200 J
73000 mWh 262800 J
74000 mWh 266400 J
75000 mWh 270000 J
76000 mWh 273600 J
77000 mWh 277200 J
78000 mWh 280800 J
79000 mWh 284400 J
80000 mWh 288000 J
81000 mWh 291600 J
82000 mWh 295200 J
83000 mWh 298800 J
84000 mWh 302400 J
85000 mWh 306000 J
86000 mWh 309600 J
87000 mWh 313200 J
88000 mWh 316800 J
89000 mWh 320400 J
90000 mWh 324000 J
91000 mWh 327600 J
92000 mWh 331200 J
93000 mWh 334800 J
94000 mWh 338400 J
95000 mWh 342000 J
96000 mWh 345600 J
97000 mWh 349200 J
98000 mWh 352800 J
99000 mWh 356400 J
100000 mWh 360000 J