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Convert Joules to BTUs

Convert joules to btu instantly (Joules to BTUs). 1 J = 0.0009478171203 BTU.

Converter

joule (J)
BTU (BTU, International Table)

J to BTU conversion table

JoulesBTUs
1 J0.00094781712 BTU
2 J0.0018956342 BTU
5 J0.0047390856 BTU
10 J0.0094781712 BTU
25 J0.023695428 BTU
50 J0.047390856 BTU
100 J0.094781712 BTU
1000 J0.94781712 BTU

Formula

BTU = J × 0.0009478171203

Worked example

25 J × 0.0009478171203 = 0.02369542801 BTU

Popular conversion examples

Choose an example to open this converter with the value filled in. These are useful examples, not a claim about search rankings.

  • 1 J to BTU

    0.000947817 BTU. Open the full joules to btu converter.

    convertly.website/joules-to-btu/?value=1
  • 5 J to BTU

    0.00473909 BTU. Open the full joules to btu converter.

    convertly.website/joules-to-btu/?value=5
  • 100 J to BTU

    0.0947817 BTU. Open the full joules to btu converter.

    convertly.website/joules-to-btu/?value=100
  • 101.3 J to BTU

    0.0960139 BTU. Open the full joules to btu converter.

    convertly.website/joules-to-btu/?value=101.3
  • 1 BTU to J

    1055.06 J. Open the full btu to joules converter.

    convertly.website/btu-to-joules/?value=1
  • 0.05279 BTU to J

    55.6964 J. Open the full btu to joules converter.

    convertly.website/btu-to-joules/?value=0.05279

About joules and BTUs

Joule (J)

The joule is the SI unit of energy and work: one newton-meter. It is used in physics, engineering and electrical energy ratings.

BTU (BTU)

The International Table BTU is exactly 1,055.05585262 joules. It is used for heating, cooling and fuel energy content, mainly in the US.

Both are units of energy; the base unit used internally is J.

Notes

J to BTU FAQs

How do I convert joules to BTUs?

Multiply the number of joules by 0.0009478171203 to get BTUs. For example, 25 J × 0.0009478171203 = 0.0236954 BTU.

How many BTUs are in one joule?

1 J = 0.0009478171203 BTU and 1 BTU = 1055.055853 J. To go the other way, use the BTUs to joules converter.

How many BTUs are in 650 joules?

650 J = 0.616081 BTU, rounded to 6 significant digits. Change the value in the converter above for any other amount.

How many BTUs are in 1.35581795 joules?

1.35581795 J = 0.00128507 BTU, rounded to 6 significant digits.

Is the J to BTU conversion exact?

The ratio is exact by definition, but its decimal form does not end (0.000947817120313… to 12 significant digits). The converter keeps full precision internally and rounds only the displayed answer, which you can set from 4 to 12 significant digits.

What is the difference between joules and BTUs?

The joule is the SI unit of energy and work: one newton-meter. It is used in physics, engineering and electrical energy ratings. The International Table BTU is exactly 1,055.05585262 joules. It is used for heating, cooling and fuel energy content, mainly in the US.

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