Energy

Therms to Joules Converter

Convert therms (thm) to joules (J). 1 therm = 105,480,400 joules (exact)

1 therm (US) = 105,480,400 joules

How to convert therms to joules

FormulaJ = thm × 105,480,400

Multiply the value in therms by 105,480,400. To go the other way, multiply by 9.48043428×10⁻⁹ (or divide by 105,480,400).

A therm is larger than a joule: one therm contains 105,480,400 joules.

Worked examples

  • 1 therm (US)1 thm × 105,480,400 = 105,480,400 J
  • 5 therms5 thm × 105,480,400 = 527,402,000 J
  • 10 therms10 thm × 105,480,400 = 1,054,804,000 J
  • 20 therms20 thm × 105,480,400 = 2,109,608,000 J
  • 100 therms100 thm × 105,480,400 = 10,548,040,000 J

Therms to joules conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Therms to joules: 0.1–10 thm
Therms (thm)Joules (J)
0.1 thm10,548,040 J
0.25 thm26,370,100 J
0.5 thm52,740,200 J
1 thm105,480,400 J
2 thm210,960,800 J
3 thm316,441,200 J
4 thm421,921,600 J
5 thm527,402,000 J
6 thm632,882,400 J
7 thm738,362,800 J
8 thm843,843,200 J
9 thm949,323,600 J
10 thm1,054,804,000 J
Therms to joules: 12–1,000 thm
Therms (thm)Joules (J)
12 thm1,265,764,800 J
15 thm1,582,206,000 J
20 thm2,109,608,000 J
25 thm2,637,010,000 J
30 thm3,164,412,000 J
40 thm4,219,216,000 J
50 thm5,274,020,000 J
75 thm7,911,030,000 J
100 thm10,548,040,000 J
250 thm26,370,100,000 J
500 thm52,740,200,000 J
1,000 thm105,480,400,000 J

About the units

Therm (thm)

The US therm is 105,480,400 J, about 100,000 BTU. US gas utilities bill by the therm.

Joule (J)

The SI unit of energy: the work done by a force of one newton over one metre, or one watt for one second. Lifting an apple by one metre takes about 1 J.

Frequently asked questions

How many joules are in one therm?

There are 105,480,400 joules in one therm, and this value is exact by definition.

How do I convert therms to joules?

Multiply the number of therms by 105,480,400. For example, 10 thm × 105,480,400 = 1,054,804,000 J.

How many therms are in one joule?

One joule equals 9.48043428×10⁻⁹ therms. That is the reverse factor, 1 ÷ 105,480,400.

What is 10 therms in joules?

10 thm = 1,054,804,000 J.

Is this thm to J converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Convert therms to other units

Convert other units to joules

Try “psi to bar”, “cups”, “binary” or “5 ft in cm”.