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Therms to British Thermal Units Converter

Convert therms (100,000 Btu) (thm) to British thermal units (IT) (Btu), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
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Result
100,000 Btu
joules (watt-seconds)
105,505,585.262 J
kilojoules
105,505.585262 kJ
megajoules
105.505585262 MJ
gigajoules
0.105505585262 GJ
calories (thermochemical)
25,216,440.0722 cal
kilocalories (food Calories)
25,216.4400722 kcal
megacalories
25.2164400722 Mcal
watt-hours
29,307.1070172 Wh
kilowatt-hours
29.3071070172 kWh
megawatt-hours
0.0293071070172 MWh
million Btu
0.1 MMBtu
quads (10¹⁵ Btu)
1 × 10⁻¹⁰ quad
electronvolts
6.58514067819 × 10²⁶ eV
kiloelectronvolts
6.58514067819 × 10²³ keV
megaelectronvolts
6.58514067819 × 10²⁰ MeV

1 thm = 100,000 Btu

Show the working
  1. 1 thm = 100000 Btu
  2. 1 × 100000 = 100000 Btu

How to convert therms to british thermal units

1 thm = 100,000 Btu, so multiply by 100,000 to go from therms (100,000 Btu) to British thermal units (IT). Going the other way, 1 Btu = 1 × 10⁻⁵ thm.

Btu = thm × 100,000
thm = Btu × 1

Worked example:

1 thm = 100000 Btu
5 × 100000 = 500000 Btu

Therms to british thermal units table

ThermsBritish Thermal Units
1 thm100,000 Btu
2 thm200,000 Btu
3 thm300,000 Btu
4 thm400,000 Btu
5 thm500,000 Btu
6 thm600,000 Btu
7 thm700,000 Btu
8 thm800,000 Btu
9 thm900,000 Btu
10 thm1,000,000 Btu
15 thm1,500,000 Btu
20 thm2,000,000 Btu
25 thm2,500,000 Btu
30 thm3,000,000 Btu
40 thm4,000,000 Btu
50 thm5,000,000 Btu
75 thm7,500,000 Btu
100 thm10,000,000 Btu
250 thm25,000,000 Btu
500 thm50,000,000 Btu
1000 thm100,000,000 Btu

About the units

Therms (thm)
Therms (100,000 Btu), a US customary unit. The EC/IT therm; the US therm is 105,480,400 J, 0.02% smaller. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
British Thermal Units (Btu)
British thermal units (IT), a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed