Horsepower (Boiler) to Ton of Refrigeration Converter

Power Converter

22 units available

Decimals:

From

To

2.789284

1 hp (S) = 2.789284 RT

Formula:

RT = hp (S) × 2.7892836125

With your value: 1 hp (S) = 2.78928361 RT

How big is that?

Everyday references on a logarithmic scale, all expressed in horsepower (boiler) so you can sanity-check the result.

LED bulb (1/1.1e+3 your value)0.000917 hp (S)

Laptop (1/1.5e+2 your value)0.00663 hp (S)

Microwave oven (1/9.8 your value)0.102 hp (S)

Electric kettle (1/3.3 your value)0.306 hp (S)

Your value1.00 hp (S)

Family car engine (9.2× your value)9.17 hp (S)

Other Horsepower (Boiler) to Ton of Refrigeration conversions

2 hp (S) to RT 3 hp (S) to RT 4 hp (S) to RT 5 hp (S) to RT 6 hp (S) to RT 7 hp (S) to RT 8 hp (S) to RT

Horsepower (Boiler) to Ton of Refrigeration Conversion Table

Horsepower (Boiler) (hp (S))	Ton of Refrigeration (RT)
0.5	1.394642
1	2.789284
2	5.578567
5	13.946418
10	27.892836
15	41.839254
20	55.785672
25	69.73209
50	139.464181
100	278.928361
250	697.320903
500	1,394.641806
1000	2,789.283612

Ton of Refrigeration to Horsepower (Boiler) Conversion Table

Ton of Refrigeration (RT)	Horsepower (Boiler) (hp (S))
0.5	0.179257
1	0.358515
2	0.71703
5	1.792575
10	3.58515
15	5.377725
20	7.1703
25	8.962875
50	17.92575
100	35.851499
250	89.628749
500	179.257497
1000	358.514995

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.

Horsepower (Boiler) (hp (S))

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

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

Ton of Refrigeration (RT)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

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 Horsepower (Boiler) to Ton of Refrigeration

To convert from Horsepower (Boiler) (hp (S)) to Ton of Refrigeration (RT), multiply the value by 2.7892836125.

Formula: RT = hp (S) × 2.7892836125

Reverse: hp (S) = RT × 0.3585149949

Step-by-Step Example

Start with your value in Horsepower (Boiler). For example: 5 hp (S)
Multiply by the conversion factor: 5 x 2.7892836125
The result is: 13.946418 RT

About Horsepower (Boiler)

The horsepower (boiler) (hp (S)) is a unit of power. One horsepower (boiler) equals 9809.5 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

About Ton of Refrigeration

The ton of refrigeration (RT) is a unit of power. One ton of refrigeration equals 3516.852842 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

Frequently Asked Questions

How many Ton of Refrigeration are in 1 Horsepower (Boiler)?

There are exactly 2.7892836125 Ton of Refrigeration in 1 Horsepower (Boiler). This means the conversion factor from Horsepower (Boiler) to Ton of Refrigeration is 2.7892836125.

What is the formula to convert Horsepower (Boiler) to Ton of Refrigeration?

The formula to convert Horsepower (Boiler) to Ton of Refrigeration is: RT = hp (S) × 2.7892836125. For example, to convert 10 Horsepower (Boiler) to Ton of Refrigeration, you would multiply 10 by 2.7892836125.

What is a Horsepower (Boiler)?