What is gigawatt?

A gigawatt is a unit of power equal to one billion watts. It is used to express the total power output of national electricity grids, large power stations, and national energy policy targets.

What is horsepower (mechanical)?

Mechanical horsepower is a traditional unit of power equal to approximately 745.7 watts. It is widely used in automotive and industrial contexts to express engine output, pump capacity, and motor ratings.

Worked examples

1 gigawatt = 1,341,022.08959503 horsepower (mechanical)

1 horsepower (mechanical) = 745.69987158 watt

More Power conversions

• Convert gigawatt to watt
• Convert gigawatt to kilowatt
• Convert gigawatt to horsepower (mechanical)
• Convert gigawatt to megawatt
• Convert gigawatt to milliwatt
• Convert gigawatt to microwatt
• Convert gigawatt to BTU per hour
• Convert gigawatt to kilocalorie per hour
• Convert gigawatt to ton of refrigeration

Assumption: horsepower values use mechanical horsepower.