Convert Power from Horsepower (British) to Megawatts (hp to MW)

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Single conversion

Horsepower (British) to Megawatt Conversion Formula

To convert from Horsepower (British) (hp) to Megawatt (MW), use the following formula:

Megawatt (MW)

= 550 × 10.737562149 × 1106× Horsepower (British) (hp)

= 0.00074569987186259472759× Horsepower (British) (hp)

With 10.737562149 is the ratio between the base units Watt (W) and Foot-pound per second (ft-lb/s).


Example

Let's convert 5 Horsepower (British) (hp) to Megawatt (MW).

Using the formula:

5 × 0.00074569987186259472759 = 0.003728499359312973638

Therefore, 5 Horsepower (British) (hp) is equal to 0.003728499359312973638 Megawatt (MW).

How many horsepower (british) are in one megawatt? One Megawatt (MW) contains 1341.0220890909090909 Horsepower (British) (hp) — the inverse of the factor above. Multiplying by 0.00074569987186259472759 takes you from horsepower (british) to megawatts; multiplying by 1341.0220890909090909 brings you back.

Put in words: one horsepower (british) equals 0.00074569987186259472759 megawatts, so the horsepower (british) is the smaller unit of this pair. Converting between them never changes the amount of power being measured — only the size of the unit you count it in.

What Is British Horsepower (hp)?

British horsepower (hp) is a unit used to measure power, most commonly in the imperial system of measurement.

It was initially created to describe the amount of work a horse could do over a period of time.

In simple terms, one horsepower is defined as the power needed to lift 550 pounds by a distance of one foot in just one second.


Where Did the Term 'Horsepower' Come From?

The concept of horsepower was invented by Scottish engineer James Watt in the late 18th century.

To help sell his new steam engines, he needed a simple way to compare their power to something people already understood: the strength of a draft horse.

After observing horses at work, Watt calculated that an average horse could lift 550 pounds at a rate of one foot per second.

He established this value as the standard for one horsepower (hp), creating a brilliant marketing tool that is still used today.


What Can One Horsepower Actually Do?

It can be hard to picture what "550 foot-pounds per second" feels like. Here's a more modern way to think about it:

Imagine lifting a 55-pound bag of dog food 10 feet into the air in just one second.

The power you would need to do that is roughly equal to one horsepower.

This simple standard created a practical way to measure and compare the power of different engines and motors.


How to Convert Horsepower (hp) to Watts (W)

In modern science and most parts of the world, the standard unit for power is the watt (W), named after James Watt.

The conversion between horsepower and watts is essential for comparing specifications on modern electronics and machinery.

The conversion is:

  • 1 Horsepower (hp) = 745.7 Watts (W)

This means an engine rated at 10 hp has a power output of approximately 7,457 watts, or about 7.5 kilowatts (kW).

What is a Megawatt (MW)?

A megawatt (MW) is a unit used to measure power.

It's equal to one million watts.

To put it simply, it's a way to describe a huge amount of electricity being used or generated at a single moment.


How Many Homes Can 1 MW Power?

One megawatt (1 MW) can power between 750 and 1,000 homes at any given moment.

This number can change depending on what's running in each home (like air conditioning on a hot day).

It's a helpful estimate used by grid operators to understand how much electricity a community needs.


The Difference: Megawatt (MW) vs. Megawatt-hour (MWh)

It's easy to mix up megawatts (MW) and megawatt-hours (MWh). Here's a simple way to understand the difference between MW vs. MWh:

  • Megawatt (MW) measures power, or how fast energy is being used right now. Think of it as the speed of electricity.
  • Megawatt-hour (MWh) measures energy, or the total amount of electricity used over a period of time. This is the volume of electricity used.

So, a power plant has a capacity measured in MW (how much electricity it can make at once).

In contrast, your electricity bill shows your consumption in MWh (how much you actually used over a month).


How Big is a Megawatt? Real-World Examples

A megawatt is a tremendous amount of power. To understand its scale, here's a look at the capacity of different power sources:

  • Onshore Wind Turbine: 2 to 5 MW
  • Utility-Scale Solar Farm: 50 to 500 MW
  • Modern Nuclear Power Plant: Over 1,000 MW (which is 1 gigawatt or GW)

Horsepower (British) to Megawatt Conversion Table

Here are some quick reference conversions from Horsepower (British) (hp) to Megawatt (MW):

Horsepower (British)Megawatts
0.000001 hp7.4569987186259472759× 10-10 MW
0.001 hp7.4569987186259472759× 10-7 MW
0.1 hp0.000074569987186259472759 MW
1 hp0.00074569987186259472759 MW
2 hp0.0014913997437251894552 MW
3 hp0.0022370996155877841828 MW
4 hp0.0029827994874503789104 MW
5 hp0.003728499359312973638 MW
6 hp0.0044741992311755683655 MW
7 hp0.0052198991030381630931 MW
8 hp0.0059655989749007578207 MW
9 hp0.0067112988467633525483 MW
10 hp0.0074569987186259472759 MW
20 hp0.014913997437251894552 MW
30 hp0.022370996155877841828 MW
40 hp0.029827994874503789104 MW
50 hp0.03728499359312973638 MW
100 hp0.074569987186259472759 MW
1000 hp0.74569987186259472759 MW
10000 hp7.4569987186259472759 MW