Convert between various energy units instantly. From joules to calories, kilowatt-hours to BTU, and kilocalories to joules - all with precision and accuracy.
Formula: J = cal ÷ 0.239006
Formula: cal = J × 0.239006
Formula: BTU = kWh × 3,412.14
Formula: kWh = BTU ÷ 3,412.14
Formula: J = BTU ÷ 0.000947817
Formula: BTU = J × 0.000947817
Formula: cal = kcal × 1,000
Formula: kcal = cal ÷ 1,000
Formula: J = kWh × 3,600,000
Formula: kWh = J ÷ 3,600,000
Formula: kcal = kWh ÷ 0.001163
Formula: kWh = kcal × 0.001163
Energy conversion is essential in physics, nutrition, electrical engineering, and everyday life. Understanding different energy units helps in calculating electricity costs, nutrition analysis, and scientific research.
In nutrition, a food "Calorie" (capital C) is actually a kilocalorie (kcal). So when a food label says 100 Calories, it means 100 kcal = 100,000 cal = 418,400 joules.