Joules to British thermal units Converter

1 joule (J) equals 0.00094781712 British thermal units (BTU).

Quick answer

  • 1 joule = 0.00094781712 British thermal units
  • 1 British thermal unit = 1,055.055853 joules
  • Formula: BTU = J × 0.00094781712

1 joule = 0.00094781712 British thermal units

How to convert joules to British thermal units

BTU = J × 0.00094781712

To convert joules to British thermal units, multiply the number of joules by 0.00094781712.

Example: 42 J to BTU

  1. Start with the value in joules: 42 J.
  2. Multiply by 0.00094781712: 42 × 0.00094781712 = 0.03980831905.
  3. Result: 42 joules = 0.03980831905 British thermal units.

Going the other way, 1 British thermal unit = 1,055.05585262 joules, so to convert British thermal units back to joules you divide by the same number. See British thermal units to joules.

Joules to British thermal units conversion table

Joules (J)British thermal units (BTU)
0.1 J 0.000094781712 BTU
0.2 J 0.000189563424 BTU
0.3 J 0.000284345136 BTU
0.4 J 0.000379126848 BTU
0.5 J 0.00047390856 BTU
0.6 J 0.000568690272 BTU
0.7 J 0.000663471984 BTU
0.8 J 0.000758253696 BTU
0.9 J 0.000853035408 BTU
1 J 0.00094781712 BTU
1.5 J 0.00142172568 BTU
2 J 0.001895634241 BTU
2.5 J 0.002369542801 BTU
3 J 0.002843451361 BTU
3.5 J 0.003317359921 BTU
4 J 0.003791268481 BTU
4.5 J 0.004265177041 BTU
5 J 0.004739085602 BTU
6 J 0.005686902722 BTU
7 J 0.006634719842 BTU
7.5 J 0.007108628402 BTU
8 J 0.007582536963 BTU
9 J 0.008530354083 BTU
10 J 0.009478171203 BTU
11 J 0.01042598832 BTU
12 J 0.01137380544 BTU
13 J 0.01232162256 BTU
14 J 0.01326943968 BTU
15 J 0.0142172568 BTU
16 J 0.01516507393 BTU
17 J 0.01611289105 BTU
18 J 0.01706070817 BTU
19 J 0.01800852529 BTU
20 J 0.01895634241 BTU
21 J 0.01990415953 BTU
22 J 0.02085197665 BTU
23 J 0.02179979377 BTU
24 J 0.02274761089 BTU
25 J 0.02369542801 BTU
26 J 0.02464324513 BTU

More J to BTU values

What is a joule?

The joule is the SI unit of energy, work and heat.

More about joules →

What is a British thermal unit?

The British thermal unit is the energy needed to raise the temperature of one pound of water by one degree Fahrenheit, about 1,055 joules.

More about British thermal units →

Frequently asked questions

How many British thermal units are in a joule?

One joule is 0.00094781712 British thermal units.

How many joules are in a British thermal unit?

One British thermal unit is 1,055.055853 joules.

What is the formula to convert joules to British thermal units?

BTU = J × 0.00094781712.