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.
The kilowatt-hour (kWh) is a unit of energy that represents the amount of energy consumed or produced. Although commonly associated with electric bills, it has fascinating real-world applications. For example, one kWh can power a 100-watt incandescent light bulb for 10 hours or a modern energy-efficient LED bulb for around 50 hours. Interestingly, the kWh is not just for electricity—it’s also used in renewable energy systems to measure solar and wind power production efficiencies.
Beyond its practical uses, kilowatt-hours reveal intriguing insights into our energy consumption patterns. For instance, the average U.S. home consumes about 877 kWh per month, providing a benchmark for households exploring energy-saving measures. The kWh also serves as a universal language in global energy markets, standardizing costs and outputs across international borders.
Milliwatt-hours | Kilowatt-hours |
---|---|
0
mWh
|
0
kWh
|
1000
mWh
|
0.001
kWh
|
2000
mWh
|
0.002
kWh
|
3000
mWh
|
0.003
kWh
|
4000
mWh
|
0.004
kWh
|
5000
mWh
|
0.005
kWh
|
6000
mWh
|
0.006
kWh
|
7000
mWh
|
0.007
kWh
|
8000
mWh
|
0.008
kWh
|
9000
mWh
|
0.009
kWh
|
10000
mWh
|
0.01
kWh
|
11000
mWh
|
0.011
kWh
|
12000
mWh
|
0.012
kWh
|
13000
mWh
|
0.013
kWh
|
14000
mWh
|
0.014
kWh
|
15000
mWh
|
0.015
kWh
|
16000
mWh
|
0.016
kWh
|
17000
mWh
|
0.017
kWh
|
18000
mWh
|
0.018
kWh
|
19000
mWh
|
0.019
kWh
|
20000
mWh
|
0.02
kWh
|
21000
mWh
|
0.021
kWh
|
22000
mWh
|
0.022
kWh
|
23000
mWh
|
0.023
kWh
|
24000
mWh
|
0.024
kWh
|
25000
mWh
|
0.025
kWh
|
26000
mWh
|
0.026
kWh
|
27000
mWh
|
0.027
kWh
|
28000
mWh
|
0.028
kWh
|
29000
mWh
|
0.029
kWh
|
30000
mWh
|
0.03
kWh
|
31000
mWh
|
0.031
kWh
|
32000
mWh
|
0.032
kWh
|
33000
mWh
|
0.033
kWh
|
34000
mWh
|
0.034
kWh
|
35000
mWh
|
0.035
kWh
|
36000
mWh
|
0.036
kWh
|
37000
mWh
|
0.037
kWh
|
38000
mWh
|
0.038
kWh
|
39000
mWh
|
0.039
kWh
|
40000
mWh
|
0.04
kWh
|
41000
mWh
|
0.041
kWh
|
42000
mWh
|
0.042
kWh
|
43000
mWh
|
0.043
kWh
|
44000
mWh
|
0.044
kWh
|
45000
mWh
|
0.045
kWh
|
46000
mWh
|
0.046
kWh
|
47000
mWh
|
0.047
kWh
|
48000
mWh
|
0.048
kWh
|
49000
mWh
|
0.049
kWh
|
50000
mWh
|
0.05
kWh
|
51000
mWh
|
0.051
kWh
|
52000
mWh
|
0.052
kWh
|
53000
mWh
|
0.053
kWh
|
54000
mWh
|
0.054
kWh
|
55000
mWh
|
0.055
kWh
|
56000
mWh
|
0.056
kWh
|
57000
mWh
|
0.057
kWh
|
58000
mWh
|
0.058
kWh
|
59000
mWh
|
0.059
kWh
|
60000
mWh
|
0.06
kWh
|
61000
mWh
|
0.061
kWh
|
62000
mWh
|
0.062
kWh
|
63000
mWh
|
0.063
kWh
|
64000
mWh
|
0.064
kWh
|
65000
mWh
|
0.065
kWh
|
66000
mWh
|
0.066
kWh
|
67000
mWh
|
0.067
kWh
|
68000
mWh
|
0.068
kWh
|
69000
mWh
|
0.069
kWh
|
70000
mWh
|
0.07
kWh
|
71000
mWh
|
0.071
kWh
|
72000
mWh
|
0.072
kWh
|
73000
mWh
|
0.073
kWh
|
74000
mWh
|
0.074
kWh
|
75000
mWh
|
0.075
kWh
|
76000
mWh
|
0.076
kWh
|
77000
mWh
|
0.077
kWh
|
78000
mWh
|
0.078
kWh
|
79000
mWh
|
0.079
kWh
|
80000
mWh
|
0.08
kWh
|
81000
mWh
|
0.081
kWh
|
82000
mWh
|
0.082
kWh
|
83000
mWh
|
0.083
kWh
|
84000
mWh
|
0.084
kWh
|
85000
mWh
|
0.085
kWh
|
86000
mWh
|
0.086
kWh
|
87000
mWh
|
0.087
kWh
|
88000
mWh
|
0.088
kWh
|
89000
mWh
|
0.089
kWh
|
90000
mWh
|
0.09
kWh
|
91000
mWh
|
0.091
kWh
|
92000
mWh
|
0.092
kWh
|
93000
mWh
|
0.093
kWh
|
94000
mWh
|
0.094
kWh
|
95000
mWh
|
0.095
kWh
|
96000
mWh
|
0.096
kWh
|
97000
mWh
|
0.097
kWh
|
98000
mWh
|
0.098
kWh
|
99000
mWh
|
0.099
kWh
|
100000
mWh
|
0.1
kWh
|
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