Therm to Megajoule Converter

Energy Converter

27 units available

Decimals:

From

To

105.505585

1 thm = 105.505585 MJ

Formula:

MJ = thm × 105.505585262

With your value: 1 thm = 105.50558526 MJ

How big is that?

Everyday references on a logarithmic scale, all expressed in therm so you can sanity-check the result.

Heartbeat (1/1.1e+8 your value)9.48e-9 thm

AA battery charge (1/1.1e+4 your value)0.0000948 thm

Slice of bread (1/3.8e+2 your value)0.00265 thm

Daily food intake (1/13 your value)0.0796 thm

Litre of petrol (1/3.1 your value)0.324 thm

Your value1.00 thm

Other Therm to Megajoule conversions

2 thm to MJ 3 thm to MJ 4 thm to MJ 5 thm to MJ 6 thm to MJ 7 thm to MJ 8 thm to MJ

Therm to Megajoule Conversion Table

Therm (thm)	Megajoule (MJ)
0.5	52.752793
1	105.505585
2	211.011171
5	527.527926
10	1,055.055853
15	1,582.583779
20	2,110.111705
25	2,637.639632
50	5,275.279263
100	10,550.558526
250	26,376.396316
500	52,752.792631
1000	105,505.585262

Megajoule to Therm Conversion Table

Megajoule (MJ)	Therm (thm)
0.5	0.004739
1	0.009478
2	0.018956
5	0.047391
10	0.094782
15	0.142173
20	0.189563
25	0.236954
50	0.473909
100	0.947817
250	2.369543
500	4.739086
1000	9.478171

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Therm (thm)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Megajoule (MJ)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Therm to Megajoule

To convert from Therm (thm) to Megajoule (MJ), multiply the value by 105.505585262.

Formula: MJ = thm × 105.505585262

Reverse: thm = MJ × 0.0094781712

Step-by-Step Example

Start with your value in Therm. For example: 5 thm
Multiply by the conversion factor: 5 x 105.505585262
The result is: 527.527926 MJ

About Therm

The therm (thm) is a unit of energy and work. One therm equals 1.055056 × 10^+8 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Megajoule

The megajoule (MJ) is a unit of energy and work. One megajoule equals 1.000000 × 10^+6 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Megajoule are in 1 Therm?

There are exactly 105.505585262 Megajoule in 1 Therm. This means the conversion factor from Therm to Megajoule is 105.505585262.

What is the formula to convert Therm to Megajoule?

The formula to convert Therm to Megajoule is: MJ = thm × 105.505585262. For example, to convert 10 Therm to Megajoule, you would multiply 10 by 105.505585262.

What is a Therm?