Ton of Refrigeration to Horsepower (Metric) Converter

Power Converter

22 units available

Decimals:

From

To

4.781589

1 RT = 4.781589 PS

Formula:

PS = RT × 4.781589149

With your value: 1 RT = 4.78158915 PS

How big is that?

Everyday references on a logarithmic scale, all expressed in ton of refrigeration so you can sanity-check the result.

LED bulb (1/3.9e+2 your value)0.00256 RT

Laptop (1/54 your value)0.0185 RT

Microwave oven (1/3.5 your value)0.284 RT

Electric kettle (1/1.2 your value)0.853 RT

Your value1.00 RT

Family car engine (26× your value)25.6 RT

Other Ton of Refrigeration to Horsepower (Metric) conversions

2 RT to PS 3 RT to PS 4 RT to PS 5 RT to PS 6 RT to PS 7 RT to PS 8 RT to PS

Ton of Refrigeration to Horsepower (Metric) Conversion Table

Ton of Refrigeration (RT)	Horsepower (Metric) (PS)
0.5	2.390795
1	4.781589
2	9.563178
5	23.907946
10	47.815891
15	71.723837
20	95.631783
25	119.539729
50	239.079457
100	478.158915
250	1,195.397287
500	2,390.794574
1000	4,781.589149

Horsepower (Metric) to Ton of Refrigeration Conversion Table

Horsepower (Metric) (PS)	Ton of Refrigeration (RT)
0.5	0.104568
1	0.209135
2	0.418271
5	1.045677
10	2.091355
15	3.137032
20	4.18271
25	5.228387
50	10.456775
100	20.913549
250	52.283873
500	104.567746
1000	209.135492

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.

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

Horsepower (Metric) (PS)

Power

Exact conversion

Metric horsepower (PS) is exactly 75 kgf·m/s = 735.498 75 W.

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 Ton of Refrigeration to Horsepower (Metric)

To convert from Ton of Refrigeration (RT) to Horsepower (Metric) (PS), multiply the value by 4.781589149.

Formula: PS = RT × 4.781589149

Reverse: RT = PS × 0.2091354922

Step-by-Step Example

Start with your value in Ton of Refrigeration. For example: 5 RT
Multiply by the conversion factor: 5 x 4.781589149
The result is: 23.907946 PS

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.

About Horsepower (Metric)

The horsepower (metric) (PS) is a unit of power. One horsepower (metric) equals 735.49875 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 Horsepower (Metric) are in 1 Ton of Refrigeration?

There are exactly 4.781589149 Horsepower (Metric) in 1 Ton of Refrigeration. This means the conversion factor from Ton of Refrigeration to Horsepower (Metric) is 4.781589149.

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

The formula to convert Ton of Refrigeration to Horsepower (Metric) is: PS = RT × 4.781589149. For example, to convert 10 Ton of Refrigeration to Horsepower (Metric), you would multiply 10 by 4.781589149.

What is a Ton of Refrigeration?