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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.

Did you know?

The watt-minute is a lesser-known unit of energy, yet it plays a significant role in understanding everyday energy consumption. It is equivalent to 60 joules and is simply the amount of energy produced or consumed by a power of one watt over one minute. Although not commonly used in everyday measurements, watt-minutes can be instrumental in more precise energy calculations, such as for electrical appliances or industrial equipment, providing insights between larger units like kilowatt-hours and smaller units like joules.

Intriguingly, it takes roughly 15 watt-minutes to charge a modern smartphone for one minute of talk time. This highlights how even small units can offer a clearer perspective on our energy usage, encouraging us to be more mindful of our energy habits!

> Joules to Watt-minutes Conversion Table

Joules Watt-minutes
0 J 0 Wm
100 J 1.66667 Wm
200 J 3.33333 Wm
300 J 5 Wm
400 J 6.66667 Wm
500 J 8.33333 Wm
600 J 10 Wm
700 J 11.66667 Wm
800 J 13.33333 Wm
900 J 15 Wm
1000 J 16.66667 Wm
1100 J 18.33333 Wm
1200 J 20 Wm
1300 J 21.66667 Wm
1400 J 23.33333 Wm
1500 J 25 Wm
1600 J 26.66667 Wm
1700 J 28.33333 Wm
1800 J 30 Wm
1900 J 31.66667 Wm
2000 J 33.33333 Wm
2100 J 35 Wm
2200 J 36.66667 Wm
2300 J 38.33333 Wm
2400 J 40 Wm
2500 J 41.66667 Wm
2600 J 43.33333 Wm
2700 J 45 Wm
2800 J 46.66667 Wm
2900 J 48.33333 Wm
3000 J 50 Wm
3100 J 51.66667 Wm
3200 J 53.33333 Wm
3300 J 55 Wm
3400 J 56.66667 Wm
3500 J 58.33333 Wm
3600 J 60 Wm
3700 J 61.66667 Wm
3800 J 63.33333 Wm
3900 J 65 Wm
4000 J 66.66667 Wm
4100 J 68.33333 Wm
4200 J 70 Wm
4300 J 71.66667 Wm
4400 J 73.33333 Wm
4500 J 75 Wm
4600 J 76.66667 Wm
4700 J 78.33333 Wm
4800 J 80 Wm
4900 J 81.66667 Wm
5000 J 83.33333 Wm
5100 J 85 Wm
5200 J 86.66667 Wm
5300 J 88.33333 Wm
5400 J 90 Wm
5500 J 91.66667 Wm
5600 J 93.33333 Wm
5700 J 95 Wm
5800 J 96.66667 Wm
5900 J 98.33333 Wm
6000 J 100 Wm
6100 J 101.66667 Wm
6200 J 103.33333 Wm
6300 J 105 Wm
6400 J 106.66667 Wm
6500 J 108.33333 Wm
6600 J 110 Wm
6700 J 111.66667 Wm
6800 J 113.33333 Wm
6900 J 115 Wm
7000 J 116.66667 Wm
7100 J 118.33333 Wm
7200 J 120 Wm
7300 J 121.66667 Wm
7400 J 123.33333 Wm
7500 J 125 Wm
7600 J 126.66667 Wm
7700 J 128.33333 Wm
7800 J 130 Wm
7900 J 131.66667 Wm
8000 J 133.33333 Wm
8100 J 135 Wm
8200 J 136.66667 Wm
8300 J 138.33333 Wm
8400 J 140 Wm
8500 J 141.66667 Wm
8600 J 143.33333 Wm
8700 J 145 Wm
8800 J 146.66667 Wm
8900 J 148.33333 Wm
9000 J 150 Wm
9100 J 151.66667 Wm
9200 J 153.33333 Wm
9300 J 155 Wm
9400 J 156.66667 Wm
9500 J 158.33333 Wm
9600 J 160 Wm
9700 J 161.66667 Wm
9800 J 163.33333 Wm
9900 J 165 Wm
10000 J 166.66667 Wm