MMBTU and therms are both units for heat content (usually for natural gas). It’s incredibly easy to calculate therms from given MMBTU. We will show you exactly how to do it. Further on, you will also find MMBTU To Therms Calculator you can freely use, as well as a chart with 0.1 to 10,000 MMBTU converted into therms.
Let’s get acquainted with these two natural gas heat content units we are converting:
- MMBTU or Metric Million British Thermal Unit is a measure of heat content equal to 1,000,000 BTU.
- Therm is also a unit of heat content, but 1 therm is equal to 100,000 BTU.

As we can see, MMBTU is a 10 times bigger unit than therms. Based on this, we can write this very easy MMBTU to therms formula:
Therms = 10 × MMBTU
From this equation, it is quite apparent that 1 MMBTU = 10 therms.
Quick Example: Let’s say we want to convert 50 MMBTU to therms. How many therms is that? Let’s use the equation above like this:
Therms (50 MMBTU) = 10 × 50 = 500 Therms
50 MMBTU is equal to 500 therms.
You can do this equation by hand, or you can use our MMBTU To Therms Calculator (further on, we have also converted 0.1 to 10,000 MMBTU into therms, and summarized the results in a neat conversion chart):
MMBTU To Therms Calculator
Here is how easy it is to make this conversion:
Let’s say we want to convert 75 MMBTU to therms. Just slide the slider to ’75’ and you get the result: 75 MMBTU is 750 therms.
Here is the full conversion chart you can freely use:
MMBTU To Therms Chart
MMBTU: | Therms: |
0.1 MMBTU | 1.00 Therm |
0.5 MMBTU | 5.00 Therms |
1 MMBTU | 10 Therms |
5 MMBTU | 50 Therms |
10 MMBTU | 100 Therms |
20 MMBTU | 200 Therms |
30 MMBTU | 300 Therms |
40 MMBTU | 400 Therms |
50 MMBTU | 500 Therms |
60 MMBTU | 600 Therms |
70 MMBTU | 700 Therms |
80 MMBTU | 800 Therms |
90 MMBTU | 900 Therms |
100 MMBTU | 1,000 Therms |
150 MMBTU | 1,500 Therms |
200 MMBTU | 2,000 Therms |
250 MMBTU | 2,500 Therms |
300 MMBTU | 3,000 Therms |
350 MMBTU | 3,500 Therms |
400 MMBTU | 4,000 Therms |
450 MMBTU | 4,500 Therms |
500 MMBTU | 5,000 Therms |
600 MMBTU | 6,000 Therms |
700 MMBTU | 7,000 Therms |
800 MMBTU | 8,000 Therms |
900 MMBTU | 9,000 Therms |
1000 MMBTU | 10,000 Therms |
10,000 MMBTU | 100,000 Therms |
Now, when you have to figure out how many therms is 500 MMBTU, for example, you can just consult this chart: 500 MMBTU is equal to 5,000 therms.
With this simple conversion formula, as well as the calculator and chart, you are now fully equipped to convert MMBTU to therms. If you encounter any problems, you can give us a comment below, and we will help you out. You can also convert therms to MMBTU here.