Convert BTU to megajoules

Conversion Calculator

Enter your value in the conversion calculator below.

TIP: If the result of your conversion is 0, try increasing the "Decimals".

How to convert BTU to megajoules: Enter a value in the BTU field and click on the "Calculate megajoules" button. Your answer will appear in the megajoules field.

Conversion Definitions

The following is a list of definitions relating to conversions between BTU and megajoules.

What is a British Thermal Unit (BTU)?

A British Thermal Unit is a unit of energy in the Imperial System. The symbol for British Thermal Unit is BTU or Btu. There are 947.817 BTU in a megajoule. A BTU is measured as the quantity of heat required to raise the temperature of 1 pound of water by 1°F.

What is a megajoule (MJ)?

A megajoule is a unit of energy in the International System of Units (SI). The symbol for megajoule is MJ. There are 0.00105505585262 megajoules in a BTU.

Conversion Formula

Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from BTU to megajoules is:

megajoules = BTU x 0.00105505585262

Conversion Example

Next, let's look at an example showing the work and calculations that are involved in converting from British Thermal Units to megajoules (BTU to MJ).

BTU to Megajoule Conversion Example

Task: Convert 475 BTUs to megajoules (show work)

Formula:
BTU x 0.00105505585262 = megajoules

Calculations:
475 BTU x 0.00105505585262 = 0.50115153 megajoules

Result:
475 BTU is equal to 0.50115153 megajoules

Conversion Table

For quick reference purposes, below is a conversion table that you can use to convert from BTUs to megajoules.

BTUs to Megajoules Conversion Chart

British Thermal Units (BTU)	megajoules (MJ)
1 BTU	0.00105506 MJ
2 BTU	0.00211011 MJ
3 BTU	0.00316517 MJ
4 BTU	0.00422022 MJ
5 BTU	0.00527528 MJ
6 BTU	0.00633034 MJ
7 BTU	0.00738539 MJ
8 BTU	0.00844045 MJ
9 BTU	0.0094955 MJ
10 BTU	0.01055056 MJ
20 BTU	0.02110112 MJ
30 BTU	0.03165168 MJ
40 BTU	0.04220223 MJ
50 BTU	0.05275279 MJ
75 BTU	0.07912919 MJ
100 BTU	0.10550559 MJ
250 BTU	0.26376396 MJ
500 BTU	0.52752793 MJ
750 BTU	0.79129189 MJ
1,000 BTU	1.05505585 MJ
2,500 BTU	2.63763963 MJ
5,000 BTU	5.27527926 MJ
7,500 BTU	7.91291889 MJ
10,000 BTU	10.55055853 MJ
25,000 BTU	26.37639632 MJ
50,000 BTU	52.75279263 MJ
75,000 BTU	79.12918895 MJ
100,000 BTU	105.50558526 MJ
250,000 BTU	263.76396316 MJ

Related Units

This table provides a summary of the Energy units within their respective measurement systems.

Unit	Symbol	Measurement System	Description
calories (thermochemical)	cal	International System of Units (SI)	1 cal = 4.184 J
kilocalories	kcal	International System of Units (SI)	1,000 cal = 1 kcal
British Thermal Unit	BTU or Btu	Imperial System	1 BTU = 1,055 J
joules	J	International System of Units (SI)	base unit
kilojoules	kJ	International System of Units (SI)	1,000 J = 1 kJ
megajoules	MJ	International System of Units (SI)	1,000,000 J = 1 MJ
gigajoules	GJ	International System of Units (SI)	1,000,000,000 J = 1 GJ
terajoules	TJ	International System of Units (SI)	1,000,000,000,000 J = 1 TJ

Find a Conversion

Looking for a conversion? Select a conversion type and the desired units.