The calorie, commonly associated with food energy, originally measured heat in physics. One calorie is the amount of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius. Despite what food packaging might suggest, when we count calories, we are typically referring to kilocalories, which equals 1,000 of these small calories. This means that when you see a snack label stating it’s 100 calories, it’s actually 100 kilocalories, or 100,000 calories in scientific terms!
Interestingly, the calorie became a popular unit due to its early use in nutrition studies and its role in determining food’s energy content. This is crucial, as it helps in planning and maintaining balanced diets and understanding energy expenditure for health and fitness.
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.
Calories | Milliwatt-hours |
---|---|
0
cal
|
0
mWh
|
10
cal
|
11.62222
mWh
|
20
cal
|
23.24444
mWh
|
30
cal
|
34.86667
mWh
|
40
cal
|
46.48889
mWh
|
50
cal
|
58.11111
mWh
|
60
cal
|
69.73333
mWh
|
70
cal
|
81.35556
mWh
|
80
cal
|
92.97778
mWh
|
90
cal
|
104.6
mWh
|
100
cal
|
116.22222
mWh
|
110
cal
|
127.84444
mWh
|
120
cal
|
139.46667
mWh
|
130
cal
|
151.08889
mWh
|
140
cal
|
162.71111
mWh
|
150
cal
|
174.33333
mWh
|
160
cal
|
185.95556
mWh
|
170
cal
|
197.57778
mWh
|
180
cal
|
209.2
mWh
|
190
cal
|
220.82222
mWh
|
200
cal
|
232.44444
mWh
|
210
cal
|
244.06667
mWh
|
220
cal
|
255.68889
mWh
|
230
cal
|
267.31111
mWh
|
240
cal
|
278.93333
mWh
|
250
cal
|
290.55556
mWh
|
260
cal
|
302.17778
mWh
|
270
cal
|
313.8
mWh
|
280
cal
|
325.42222
mWh
|
290
cal
|
337.04444
mWh
|
300
cal
|
348.66667
mWh
|
310
cal
|
360.28889
mWh
|
320
cal
|
371.91111
mWh
|
330
cal
|
383.53333
mWh
|
340
cal
|
395.15556
mWh
|
350
cal
|
406.77778
mWh
|
360
cal
|
418.4
mWh
|
370
cal
|
430.02222
mWh
|
380
cal
|
441.64444
mWh
|
390
cal
|
453.26667
mWh
|
400
cal
|
464.88889
mWh
|
410
cal
|
476.51111
mWh
|
420
cal
|
488.13333
mWh
|
430
cal
|
499.75556
mWh
|
440
cal
|
511.37778
mWh
|
450
cal
|
523
mWh
|
460
cal
|
534.62222
mWh
|
470
cal
|
546.24444
mWh
|
480
cal
|
557.86667
mWh
|
490
cal
|
569.48889
mWh
|
500
cal
|
581.11111
mWh
|
510
cal
|
592.73333
mWh
|
520
cal
|
604.35556
mWh
|
530
cal
|
615.97778
mWh
|
540
cal
|
627.6
mWh
|
550
cal
|
639.22222
mWh
|
560
cal
|
650.84444
mWh
|
570
cal
|
662.46667
mWh
|
580
cal
|
674.08889
mWh
|
590
cal
|
685.71111
mWh
|
600
cal
|
697.33333
mWh
|
610
cal
|
708.95556
mWh
|
620
cal
|
720.57778
mWh
|
630
cal
|
732.2
mWh
|
640
cal
|
743.82222
mWh
|
650
cal
|
755.44444
mWh
|
660
cal
|
767.06667
mWh
|
670
cal
|
778.68889
mWh
|
680
cal
|
790.31111
mWh
|
690
cal
|
801.93333
mWh
|
700
cal
|
813.55556
mWh
|
710
cal
|
825.17778
mWh
|
720
cal
|
836.8
mWh
|
730
cal
|
848.42222
mWh
|
740
cal
|
860.04444
mWh
|
750
cal
|
871.66667
mWh
|
760
cal
|
883.28889
mWh
|
770
cal
|
894.91111
mWh
|
780
cal
|
906.53333
mWh
|
790
cal
|
918.15556
mWh
|
800
cal
|
929.77778
mWh
|
810
cal
|
941.4
mWh
|
820
cal
|
953.02222
mWh
|
830
cal
|
964.64444
mWh
|
840
cal
|
976.26667
mWh
|
850
cal
|
987.88889
mWh
|
860
cal
|
999.51111
mWh
|
870
cal
|
1011.13333
mWh
|
880
cal
|
1022.75556
mWh
|
890
cal
|
1034.37778
mWh
|
900
cal
|
1046
mWh
|
910
cal
|
1057.62222
mWh
|
920
cal
|
1069.24444
mWh
|
930
cal
|
1080.86667
mWh
|
940
cal
|
1092.48889
mWh
|
950
cal
|
1104.11111
mWh
|
960
cal
|
1115.73333
mWh
|
970
cal
|
1127.35556
mWh
|
980
cal
|
1138.97778
mWh
|
990
cal
|
1150.6
mWh
|
1000
cal
|
1162.22222
mWh
|
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