Energy Conversion

Energy Converter

Convert energy units — joules, calories, kilowatt-hours, BTU, and kilojoules.

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About Energy Conversion

Convert energy units — joules, calories, kilowatt-hours, BTU, and kilojoules. Use the converter above to convert between any two energy units instantly. All conversions are based on official internationally-accepted factors for accurate, reliable results.

Popular Energy Conversions

Joules to Calories Calories to Joules Kilocalories to Kilojoules Kilojoules to Kilocalories Kilowatt-hours to Joules Joules to Kilowatt-hours BTU to Joules Joules to BTU Joules to Kilojoules Kilojoules to Joules Joules to Kilocalories Kilocalories to Joules Joules to Megajoules Megajoules to Joules Kilojoules to Calories Calories to Kilojoules Kilojoules to Kilowatt-hours Kilowatt-hours to Kilojoules Kilojoules to BTU BTU to Kilojoules Kilojoules to Megajoules Megajoules to Kilojoules Calories to Kilocalories Kilocalories to Calories Calories to Kilowatt-hours Kilowatt-hours to Calories Calories to BTU BTU to Calories Calories to Megajoules Megajoules to Calories Kilocalories to Kilowatt-hours Kilowatt-hours to Kilocalories Kilocalories to BTU BTU to Kilocalories Kilocalories to Megajoules Megajoules to Kilocalories Kilowatt-hours to BTU BTU to Kilowatt-hours Kilowatt-hours to Megajoules Megajoules to Kilowatt-hours BTU to Megajoules Megajoules to BTU

Specific Energy Conversions

Looking for a specific value? Click any conversion below:

Kilocalories to Kilojoules

2000 kcal → kJ 1000 kcal → kJ 1500 kcal → kJ 100 kcal → kJ 2500 kcal → kJ 200 kcal → kJ 1800 kcal → kJ 500 kcal → kJ 2200 kcal → kJ 1200 kcal → kJ 1600 kcal → kJ 300 kcal → kJ 400 kcal → kJ

Calories to Joules

1000 cal → J 100 cal → J 2000 cal → J 1 cal → J 1500 cal → J 200 cal → J 500 cal → J 2500 cal → J 50 cal → J 150 cal → J 250 cal → J

Kilojoules to Kilocalories

1000 kJ → kcal 400 kJ → kcal 2000 kJ → kcal 100 kJ → kcal 4000 kJ → kcal 500 kJ → kcal 8000 kJ → kcal 8368 kJ → kcal 2500 kJ → kcal 3000 kJ → kcal

Kilowatt-hours to Joules

1 kWh → J 10 kWh → J 5 kWh → J 100 kWh → J 0.5 kWh → J 0.1 kWh → J 2 kWh → J

Joules to Calories

1000 J → cal 100 J → cal 500 J → cal 4184 J → cal 10000 J → cal 50 J → cal 200 J → cal 2000 J → cal

BTU to Joules

1 BTU → J 100 BTU → J 1000 BTU → J 10000 BTU → J 5000 BTU → J 12000 BTU → J

Joules to BTU

1000 J → BTU 5000 J → BTU 10000 J → BTU 100000 J → BTU 1000000 J → BTU