• J   kWh
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Rounding Mode:

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 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.

> Joules to Kilowatt-hours Conversion Table

Joules Kilowatt-hours
0 J 0 kWh
100 J 2.77778e-5 kWh
200 J 5.55556e-5 kWh
300 J 8.33333e-5 kWh
400 J 0.000111111 kWh
500 J 0.000138889 kWh
600 J 0.000166667 kWh
700 J 0.000194444 kWh
800 J 0.000222222 kWh
900 J 0.00025 kWh
1000 J 0.000277778 kWh
1100 J 0.000305556 kWh
1200 J 0.000333333 kWh
1300 J 0.000361111 kWh
1400 J 0.000388889 kWh
1500 J 0.000416667 kWh
1600 J 0.000444444 kWh
1700 J 0.000472222 kWh
1800 J 0.0005 kWh
1900 J 0.000527778 kWh
2000 J 0.000555556 kWh
2100 J 0.000583333 kWh
2200 J 0.000611111 kWh
2300 J 0.000638889 kWh
2400 J 0.000666667 kWh
2500 J 0.000694444 kWh
2600 J 0.000722222 kWh
2700 J 0.00075 kWh
2800 J 0.000777778 kWh
2900 J 0.000805556 kWh
3000 J 0.000833333 kWh
3100 J 0.000861111 kWh
3200 J 0.000888889 kWh
3300 J 0.000916667 kWh
3400 J 0.000944444 kWh
3500 J 0.000972222 kWh
3600 J 0.001 kWh
3700 J 0.00102778 kWh
3800 J 0.00105556 kWh
3900 J 0.00108333 kWh
4000 J 0.00111111 kWh
4100 J 0.00113889 kWh
4200 J 0.00116667 kWh
4300 J 0.00119444 kWh
4400 J 0.00122222 kWh
4500 J 0.00125 kWh
4600 J 0.00127778 kWh
4700 J 0.00130556 kWh
4800 J 0.00133333 kWh
4900 J 0.00136111 kWh
5000 J 0.00138889 kWh
5100 J 0.00141667 kWh
5200 J 0.00144444 kWh
5300 J 0.00147222 kWh
5400 J 0.0015 kWh
5500 J 0.00152778 kWh
5600 J 0.00155556 kWh
5700 J 0.00158333 kWh
5800 J 0.00161111 kWh
5900 J 0.00163889 kWh
6000 J 0.00166667 kWh
6100 J 0.00169444 kWh
6200 J 0.00172222 kWh
6300 J 0.00175 kWh
6400 J 0.00177778 kWh
6500 J 0.00180556 kWh
6600 J 0.00183333 kWh
6700 J 0.00186111 kWh
6800 J 0.00188889 kWh
6900 J 0.00191667 kWh
7000 J 0.00194444 kWh
7100 J 0.00197222 kWh
7200 J 0.002 kWh
7300 J 0.00202778 kWh
7400 J 0.00205556 kWh
7500 J 0.00208333 kWh
7600 J 0.00211111 kWh
7700 J 0.00213889 kWh
7800 J 0.00216667 kWh
7900 J 0.00219444 kWh
8000 J 0.00222222 kWh
8100 J 0.00225 kWh
8200 J 0.00227778 kWh
8300 J 0.00230556 kWh
8400 J 0.00233333 kWh
8500 J 0.00236111 kWh
8600 J 0.00238889 kWh
8700 J 0.00241667 kWh
8800 J 0.00244444 kWh
8900 J 0.00247222 kWh
9000 J 0.0025 kWh
9100 J 0.00252778 kWh
9200 J 0.00255556 kWh
9300 J 0.00258333 kWh
9400 J 0.00261111 kWh
9500 J 0.00263889 kWh
9600 J 0.00266667 kWh
9700 J 0.00269444 kWh
9800 J 0.00272222 kWh
9900 J 0.00275 kWh
10000 J 0.00277778 kWh