Thermochemical calories to Megajoules

Convert thermochemical calories (cal) to megajoules (MJ). Live results, batch values, CSV export, formula and examples. Free, no sign-up.

Runs on your device · no data upload

FromTo

Values (one per line)Significant digits

Up to 500 values. Calculations stay on this device. Decimal point: dot. Results use floating-point arithmetic and the selected display precision.

Results

1 values converted

row	input	from	result	to	error
1	1	cal	0.000004184	MJ	—

Calories are thermochemical (4.184 joules), BTU uses the International Table definition, and electronvolts use the exact elementary charge.

Raw response

[
  {
    "row": 1,
    "input": 1,
    "from": "cal",
    "result": "0.000004184",
    "to": "MJ"
  }
]

How to convert thermochemical calories to megajoules

Enter one value or paste one value per line. Change precision, swap units, then copy or export the results. Invalid values are reported individually.

result = (value × 4.184 + 0 − 0) ÷ 1000000

Calories are thermochemical (4.184 joules), BTU uses the International Table definition, and electronvolts use the exact elementary charge.

Conversion examples
Thermochemical calories (cal)	Megajoules (MJ)
0	0
1	0.000004184
10	0.00004184
100	0.0004184

Reference: NIST unit conversion factors. Decimal and binary storage prefixes are distinct; rounded display values do not change the underlying calculation.

Results

How to convert thermochemical calories to megajoules

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