How Many Joules in a Kilowatt-Hour?
Resposta Rápida
There are 3,600,000 joules in one kilowatt-hour.
1 kWh = 1,000 W × 3,600 s = 3,600,000 J
Entendendo a Conversão
One kilowatt-hour = 1,000 watts × 3,600 seconds = 3,600,000 joules (3.6 MJ). This is the exact conversion because watts (joules/second) × seconds = joules, and kWh = 1,000 W × 3,600 s. The joule is the SI unit of energy.
Fórmula
1 kWh = 1,000 W × 3,600 s = 3,600,000 J
Exemplos Comuns
| Descrição | Valor |
|---|---|
| A 100W light bulb for 1 hour | 360,000 joules (0.1 kWh) |
| 1 kWh of electricity | 3.6 megajoules |
| Lifting 1 kg by 1 m | ≈9.8 joules (tiny!) |
Tabela de Referência Rápida
Use esta tabela para conversões rápidas entre kilowatt-hour e joules:
| kilowatt-hour | joules |
|---|---|
| 1 | 3.600.000 |
| 2 | 7.200.000 |
| 5 | 18.000.000 |
| 10 | 36.000.000 |
| 25 | 90.000.000 |
| 50 | 180.000.000 |
| 100 | 360.000.000 |
Perguntas Frequentes
How Many Joules in a Kilowatt-Hour?
There are 3,600,000 joules in one kilowatt-hour. One kilowatt-hour = 1,000 watts × 3,600 seconds = 3,600,000 joules (3.6 MJ). This is the exact conversion because watts (joules/second) × seconds = joules, and kWh = 1,000 W × 3,600 s. The joule is the SI unit of energy.
Qual é a fórmula para converter kilowatt-hour em joules?
A fórmula é: 1 kWh = 1,000 W × 3,600 s = 3,600,000 J. Para converter, multiplique o número de kilowatt-hour por 3.600.000 para obter o equivalente em joules.
Como converter joules para kilowatt-hour?
Para converter joules para kilowatt-hour, divida o número de {fromUnit} por 3.600.000. Por exemplo, 18.000.000 {fromUnit} equivale a 5 {toUnit}.