# Convert Watt to Ton (refrigeration)

Please provide values below to convert watt [W] to ton (refrigeration), or *vice versa*.

### Watt

**Definition:** A watt (Symbol: W) is the SI (International System of Units) derived unit of power. It is defined as 1 joule per second and is used to quantify the rate of energy transfer.

**History/origin:** The watt is named after James Watt, a Scottish inventor. It was first proposed in 1882 by William Siemens who defined it as "the power conveyed by a current of an Ampere through the difference of potential of a Volt." This was the definition used at the time within the existing system of units. In 1908, the "international" definitions were defined, with Siemens' definition being adopted as the international watt. These were used until 1948 when the General Conference on Weights and Measures re-defined the watt to absolute units, using only mass, time, and length. 1 absolute watt is equal to 1.00019 international watts. The absolute watt was adopted as the SI unit of power in 1960.

**Current use:** As the SI derived unit of power, the watt in all its multiples and submultiples is used in many applications worldwide from radio transmission to use in the electric power industry. The watt as a unit of power should not be confused with its energy counterpart, the watt-hour (and all its multiples/submultiples).

### Ton of refrigeration

**Definition:** A ton of refrigeration (TR) is a unit of power. It is defined as the power required to melt or freeze 2000 pounds, also known as one short ton, of ice per day. The ton is more often a unit of mass. A ton of refrigeration is approximately equal to 12,000 BTU/h or 3.5 kW.

**History/origin:** The ton of refrigeration originated around the 1880s during the transition from stored natural ice to mechanical refrigeration. It became an industry standard in 1903 when Thomas Shipley pushed for the formation of an industry association as well as for standardization of a number of equipment specifications. This eventually led to the founding of the American Society of Refrigerating Engineers in 1904.

**Current use:** The ton of refrigeration is mostly used in North America, specifically within the context of refrigeration and air conditioning equipment. It is often displayed alongside BTU/h specifications.

### Watt to Ton (refrigeration) Conversion Table

Watt [W] | Ton (refrigeration) |
---|---|

0.01 W | 2.84345136094E-6 ton (refrigeration) |

0.1 W | 2.84345E-5 ton (refrigeration) |

1 W | 0.0002843451 ton (refrigeration) |

2 W | 0.0005686903 ton (refrigeration) |

3 W | 0.0008530354 ton (refrigeration) |

5 W | 0.0014217257 ton (refrigeration) |

10 W | 0.0028434514 ton (refrigeration) |

20 W | 0.0056869027 ton (refrigeration) |

50 W | 0.0142172568 ton (refrigeration) |

100 W | 0.0284345136 ton (refrigeration) |

1000 W | 0.2843451361 ton (refrigeration) |

### How to Convert Watt to Ton (refrigeration)

1 W = 0.0002843451 ton (refrigeration)

1 ton (refrigeration) = 3516.8528420667 W

**Example:** convert 15 W to ton (refrigeration):

15 W = 15 × 0.0002843451 ton (refrigeration) = 0.004265177 ton (refrigeration)