Convert Joules to Kilocalories:
\[ 1 \text{kcal} = 4184 \text{J} \]
Convert Kilocalories to Joules:
\[ 1 \text{J} \approx 0.000239 \text{kcal} \]
Convert Joules to Kilowatt-hours:
\[ 1 \text{kWh} = 3,600,000 \text{J} \]
Convert Kilowatt-hours to Joules:
\[ 1 \text{J} \approx 2.778 \times 10^{-7} \text{kWh} \]
Convert Joules to Electronvolts:
\[ 1 \text{eV} = 1.60217 \times 10^{-19} \text{J} \]
Convert Electronvolts to Joules:
\[ 1 \text{J} = 6.2415 \times 10^{18} \text{eV} \]
Convert Tons of TNT to Joules:
\[ 1 \text{ton of TNT} = 4.184 \times 10^9 \text{J} \]
Convert Therms to Joules:
\[ 1 \text{therm} \approx 105.5 \times 10^6 \text{J} \]