Horsepower (mechanical) to Ton of Refrigeration (TR) Converter
Power · unit-converter
Convert Horsepower (mechanical) to Ton of Refrigeration (TR) with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: Horsepower (mechanical) (hp)
To: Ton of Refrigeration (TR) (tr)
About Horsepower (mechanical)
Mechanical horsepower here is the US definition: 550 ft·lbf/s ≈ 745.70 W. Automotive and industrial specs often cite hp.
About Ton of Refrigeration (TR)
One ton of refrigeration (TR) equals 12,000 BTU/h (IT), approximately 3,516.85 W. It is widely used in HVAC and refrigeration sizing.
How to convert horsepower (mechanical, 550 ft·lb/s) to tons of refrigeration (tr)
1 horsepower (mechanical) is equal to 0.21203613147034 ton of refrigeration (tr) when both are expressed in watt-equivalents:
1 hp = (745.6998715822702 W ÷ 3,516.8528420666667 W) tr = 0.21203613147034 tr
Each horsepower (mechanical) is defined as 745.6998715822702 W and each ton of refrigeration (tr) as 3,516.8528420666667 W in this tool, so one hp equals 745.6998715822702 ÷ 3,516.8528420666667 tr = 0.21203613147034 tr.
Let d(hp) be the numeric value in Horsepower (mechanical) (hp), and d(tr) the value in Ton of Refrigeration (TR) (tr). Then:
d(tr) = d(hp) × (745.6998715822702 / 3,516.8528420666667)
Equivalently, divide by how many hp fit into one tr (watts per tr divided by watts per hp):
d(tr) = d(hp) ÷ 4.71617734706645
Or: ton of refrigeration (tr) = horsepower (mechanical) ÷ 4.71617734706645
Examples
Example #1: Convert 1 hp to ton of refrigeration (tr)
1 hp = 1 hp × (745.6998715822702/3,516.8528420666667) tr = 0.2120361315 tr
1 hp = 1 hp ÷ 4.71617734706645 = 0.2120361315 tr
Intermediate watts: 745.699871582 W
Example #2: Convert 10 hp to ton of refrigeration (tr)
10 hp = 10 hp × (745.6998715822702/3,516.8528420666667) tr = 2.1203613147 tr
10 hp = 10 hp ÷ 4.71617734706645 = 2.1203613147 tr
Intermediate watts: 7,456.99871582 W
Summary
To convert Horsepower (mechanical) to Ton of Refrigeration (TR), multiply the value in hp by the ratio of watts per hp divided by watts per tr. Equivalently: value_tr = value_hp × (745.6998715822702 / 3516.8528420666667). Numerically, 1 hp equals 0.21203613147033534 tr.
Relationship context
You are converting between mechanical power (horsepower, ft·lb/s) (Horsepower (mechanical, 550 ft·lb/s)) and apparent power at unity PF (VA) (Tons of Refrigeration (TR)). All linear values are mapped through watts first. The numeric factor is 2.120361e-1.
Conversion tables
| Horsepower (mechanical) (hp) | Ton of Refrigeration (TR) (tr) |
|---|---|
| 0.1 | 0.0212036131 |
| 1 | 0.2120361315 |
| 2 | 0.4240722629 |
| 3 | 0.6361083944 |
| 4 | 0.8481445259 |
| 5 | 1.0601806574 |
| 6 | 1.2722167888 |
| 7 | 1.4842529203 |
| 8 | 1.6962890518 |
| 9 | 1.9083251832 |
| Horsepower (mechanical) (hp) | Ton of Refrigeration (TR) (tr) |
|---|---|
| 10 | 2.1203613147 |
| 20 | 4.2407226294 |
| 30 | 6.3610839441 |
| 40 | 8.4814452588 |
| 50 | 10.6018065735 |
| 60 | 12.7221678882 |
| 70 | 14.8425292029 |
| 80 | 16.9628905176 |
| 90 | 19.0832518323 |
| 100 | 21.203613147 |