Energy

BTU to Therms Converter

Convert British thermal units (BTU) to therms (thm). 1 British thermal unit = 0.00001000238767 therms (exact)

1 British thermal unit = 0.0000100023876722 therms

How to convert British thermal units to therms

Formulathm = BTU × 0.00001000238767

Multiply the value in British thermal units by 0.00001000238767. To go the other way, multiply by 99,976.12898 (or divide by 0.00001000238767).

A British thermal unit is smaller than a therm: it takes 99,976.12898 British thermal units to make one therm.

Worked examples

  • 1 British thermal unit1 BTU × 0.00001000238767 = 0.00001000238767 thm
  • 5 British thermal units5 BTU × 0.00001000238767 = 0.00005001193836 thm
  • 10 British thermal units10 BTU × 0.00001000238767 = 0.0001000238767 thm
  • 20 British thermal units20 BTU × 0.00001000238767 = 0.0002000477534 thm
  • 100 British thermal units100 BTU × 0.00001000238767 = 0.001000238767 thm

British thermal units to therms conversion table

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

British thermal units to therms: 0.1–10 BTU
British thermal units (BTU)Therms (thm)
0.1 BTU0.0000010002388 thm
0.25 BTU0.0000025005969 thm
0.5 BTU0.0000050011938 thm
1 BTU0.000010002388 thm
2 BTU0.000020004775 thm
3 BTU0.000030007163 thm
4 BTU0.000040009551 thm
5 BTU0.000050011938 thm
6 BTU0.000060014326 thm
7 BTU0.000070016714 thm
8 BTU0.000080019101 thm
9 BTU0.000090021489 thm
10 BTU0.00010002388 thm
British thermal units to therms: 12–1,000 BTU
British thermal units (BTU)Therms (thm)
12 BTU0.00012002865 thm
15 BTU0.00015003582 thm
20 BTU0.00020004775 thm
25 BTU0.00025005969 thm
30 BTU0.00030007163 thm
40 BTU0.00040009551 thm
50 BTU0.00050011938 thm
75 BTU0.00075017908 thm
100 BTU0.0010002388 thm
250 BTU0.0025005969 thm
500 BTU0.0050011938 thm
1,000 BTU0.010002388 thm

About the units

British thermal unit (BTU)

The International Table BTU, 1,055.05585262 J — roughly the energy to heat one pound of water by 1 °F. Furnace and AC capacities are rated in BTU (per hour). One British thermal unit equals 1,055.055853 joules (J).

Therm (thm)

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

Frequently asked questions

How many therms are in one British thermal unit?

There are 0.00001000238767 therms in one British thermal unit, and this value is exact by definition.

How do I convert British thermal units to therms?

Multiply the number of British thermal units by 0.00001000238767. For example, 10 BTU × 0.00001000238767 = 0.0001000238767 thm.

How many British thermal units are in one therm?

One therm equals 99,976.12898 British thermal units. That is the reverse factor, 1 ÷ 0.00001000238767.

What is 10 British thermal units in therms?

10 BTU = 0.0001000238767 thm.

Is this BTU to thm 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 British thermal units to other units

Convert other units to therms

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