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Advanced Energy Converter | Joules, Calories, BTU

Energy Converter

Precise conversions between Joules, Calories, and BTU

Convert Energy

J
cal
Thermochemical calories (4.184 J)
kcal
Food energy (often labeled as "Calories")
BTU

Relative Comparison

Visual representation of the current energy value relative to the other units. Heights are normalized to the largest non-zero value.

0
Joules
0
cal
0
kcal
0
BTU
Standard Conversion Formulas Used:
  • 1 cal (thermochemical) = 4.184 J
  • 1 kcal = 1,000 cal = 4,184 J
  • 1 BTU (ISO) ≈ 1,055.06 J
Value reset to zero
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