Tons of refrigeration to BTU per hour
Type a value in tons of refrigeration to see it in BTU per hour straight away, or type in the second box to convert back.
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How to use it
- Type the value in the tons of refrigeration box.
- Read the result in BTU per hour as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
BTU/h = TR × 12,000
Multiply the value in tons of refrigeration by 12,000 to get BTU per hour.
Example
To convert 25 TR to BTU per hour: 25 × 12,000 = 300,000 BTU/h.
Conversion table
| Tons of refrigeration (TR) | BTU per hour (BTU/h) |
|---|---|
| 1 | 12,000 |
| 2 | 24,000 |
| 3 | 36,000 |
| 5 | 60,000 |
| 10 | 120,000 |
| 20 | 240,000 |
| 25 | 300,000 |
| 50 | 600,000 |
| 100 | 1,200,000 |
| 250 | 3,000,000 |
| 500 | 6,000,000 |
| 1,000 | 12,000,000 |
About the units
- Ton of refrigeration
- A ton of refrigeration is exactly 12000 BTU per hour, about 3516.85 watts, used to rate central air conditioning and chillers.
- BTU per hour
- One BTU per hour is 1055.05585262 joules (International Table BTU) per 3600 seconds, about 0.293071 watts, the rating used for air conditioners.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many BTU per hour are in one ton of refrigeration?
1 TR = 12,000 BTU/h exactly.
How do I convert tons of refrigeration to BTU per hour?
Use BTU/h = TR × 12,000. For example, 25 TR = 300,000 BTU/h.
How many tons of refrigeration are in one BTU per hour?
1 BTU/h = 0.0000833333 TR.
What is the difference between mechanical and metric horsepower?
Mechanical horsepower is about 745.7 watts and is used in the US, while metric horsepower (PS) is 735.5 watts and is used in Europe and Japan. The same engine therefore shows a PS figure about 1.4% higher.
How many kilowatts is one ton of refrigeration?
One ton of refrigeration is 12000 BTU per hour, about 3.517 kW of cooling capacity. That is cooling output, not electricity use; the unit draws less power depending on its efficiency.