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Horsepower Converter

Convert Horsepower to Ton Refrigeration and more • 80 conversions

Result

0

1 0
Conversion Formula
1 = ---
Quick Reference
1 = 1
10 = 10
50 = 50
100 = 100
500 = 500
1000 = 1000

Unit Explanations

Horsepowerhp

Source Unit

Horsepower is a unit of measurement for power, which quantifies the rate at which work is done. It is traditionally used to express the power output of engines or motors. One horsepower is defined as the power needed to lift 550 pounds one foot in one second, equivalent to 745.7 watts in the SI system. The term was originally formulated to compare the output of steam engines with the power of draft horses, which were a primary source of industrial power in the 18th century.

1 hp = 550 ft·lbf/s = 745.7 W

Current Use

Horsepower remains a common unit of power measurement in the automotive industry, where it is used to specify the power output of engines. It is also used in various other industries, such as those involving pumps, turbines, and electric motors. Despite the widespread adoption of the watt as the SI unit of power, horsepower is still frequently used in non-SI contexts, particularly in the United States and the United Kingdom.

Fun Fact

James Watt's first estimate of horsepower was based on the power of a brewery horse.

Ton of RefrigerationTR

Target Unit

A ton of refrigeration (TR) is a unit of power equivalent to the amount of heat absorption required to freeze one ton of water at 0°C in 24 hours. It is defined as 3.517 kW (kilowatts) or 12,000 BTU per hour. This unit is primarily used in the HVAC (heating, ventilation, and air conditioning) industry to describe the capacity of refrigeration systems and is crucial in assessing their performance in cooling applications. The TR is based on the historical context of ice production for cooling and remains a standard in many engineering calculations.

1 TR = 3.517 kW = 12,000 BTU/h

Current Use

Today, the ton of refrigeration is a standard unit used globally in the HVAC industry to describe the capacity of air conditioning and refrigeration systems. Engineers and technicians utilize TR to calculate the required cooling power for residential, commercial, and industrial applications. The ton is also critical in assessing energy efficiency ratings and performance metrics for refrigeration equipment.

Fun Fact

The term 'ton' in refrigeration can be traced back to the amount of ice needed to cool a space effectively.

Decimals:
Scientific:OFF

Result

0

1
0
Conversion Formula
1 = ...
1→1
10→10
100→100
1000→1000

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1
=
1.000
10
=
10.00
100
=
100.0

💡 Pro Tip: For the reverse conversion (), divide by the conversion factor instead of multiplying.

hp

Horsepower

powerNon-SI

Definition

Horsepower is a unit of measurement for power, which quantifies the rate at which work is done. It is traditionally used to express the power output of engines or motors. One horsepower is defined as the power needed to lift 550 pounds one foot in one second, equivalent to 745.7 watts in the SI system. The term was originally formulated to compare the output of steam engines with the power of draft horses, which were a primary source of industrial power in the 18th century.

History & Origin

The concept of horsepower was introduced in the late 18th century by the Scottish engineer James Watt to help market his steam engines. Watt observed the performance of horses in coal mines and estimated that a horse could turn a mill wheel of a certain size at a certain speed. This observation led him to define one horsepower as the ability to lift 550 pounds one foot in one second. Watt's definition was widely adopted and became a standard measure of engine power.

Etymology: The term 'horsepower' combines 'horse' with 'power', reflecting its origin as a measure of mechanical power compared to the power of a horse.

1959: International standardization ...

Current Use

Horsepower remains a common unit of power measurement in the automotive industry, where it is used to specify the power output of engines. It is also used in various other industries, such as those involving pumps, turbines, and electric motors. Despite the widespread adoption of the watt as the SI unit of power, horsepower is still frequently used in non-SI contexts, particularly in the United States and the United Kingdom.

AutomotiveMarineIndustrial Machinery

💡 Fun Facts

  • James Watt's first estimate of horsepower was based on the power of a brewery horse.
  • The term 'horsepower' helped sell steam engines, as people could relate to the power of horses.
  • Despite the metric system's dominance, horsepower is still widely used in the automotive industry.

📏 Real-World Examples

150 hp
A compact car engine
12 hp
A riding lawn mower
500 hp
A large industrial generator
100 hp
A performance motorcycle
250 hp
A speedboat engine

🔗 Related Units

Watt (1 hp = 745.7 W)Kilowatt (1 hp = 0.7457 kW)Metric Horsepower (1 hp = 0.9863 metric hp)Foot-Pound per Second (1 hp = 550 ft·lbf/s)
TR

Ton of Refrigeration

powerNon-SI

Definition

A ton of refrigeration (TR) is a unit of power equivalent to the amount of heat absorption required to freeze one ton of water at 0°C in 24 hours. It is defined as 3.517 kW (kilowatts) or 12,000 BTU per hour. This unit is primarily used in the HVAC (heating, ventilation, and air conditioning) industry to describe the capacity of refrigeration systems and is crucial in assessing their performance in cooling applications. The TR is based on the historical context of ice production for cooling and remains a standard in many engineering calculations.

History & Origin

The concept of the ton of refrigeration originated in the 18th century with the advent of mechanical refrigeration. It was primarily based on the amount of ice that could be produced or melted in a specific time frame, which was crucial for food preservation and comfort cooling. The standardization of TR as a unit began in the 19th century, coinciding with the industrial revolution and the growing demand for refrigeration in various sectors.

Etymology: The term 'ton' is derived from the Latin word 'tonna,' which refers to a large cask or barrel, symbolizing weight. In refrigeration, it signifies the cooling effect equivalent to melting a ton of ice.

1834: Jacob Perkins developed the fi...1850: The ton as a measure of coolin...

Current Use

Today, the ton of refrigeration is a standard unit used globally in the HVAC industry to describe the capacity of air conditioning and refrigeration systems. Engineers and technicians utilize TR to calculate the required cooling power for residential, commercial, and industrial applications. The ton is also critical in assessing energy efficiency ratings and performance metrics for refrigeration equipment.

HVACFood ProcessingPharmaceuticalsAutomotive

💡 Fun Facts

  • The term 'ton' in refrigeration can be traced back to the amount of ice needed to cool a space effectively.
  • A single TR can cool approximately 400 square feet of residential space, making it a handy measure for home cooling needs.
  • The use of TR in cooling systems can be traced back to the development of mechanical refrigeration in the 19th century.

📏 Real-World Examples

3 TR
A residential air conditioning unit with a capacity of 3 TR
10 TR
A commercial refrigeration system in a supermarket rated at 10 TR
50 TR
An ice rink that requires a cooling capacity of 50 TR
15 TR
A large industrial freezer operating at 15 TR
5 TR
A hospital's HVAC system designed for 5 TR to ensure patient comfort

🔗 Related Units

Kilowatt (1 TR = 3.517 kW)British Thermal Unit (1 TR = 12,000 BTU/h)Megawatt (1 TR = 0.003517 MW)Horsepower (1 TR = 4.716 HP)

Frequently Asked Questions

How do I convert to ?

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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