Horsepower hour (hp·h)
December 10, 2025
Horsepower hour is a unit that shows how much work an engine does when it gives one horsepower of power for one full hour.
Horsepower hour is a unit that shows how much work an engine does when it gives one horsepower of power for one full hour.
A hectopascal hPa is a unit of pressure used in weather reports, helping us measure how much air is pressing on the Earth at a place.
A sidereal hour is a time unit used in astronomy that is slightly shorter than a normal hour and is based on Earth spinning once relative to distant stars.
The Hebrew Bible is the sacred collection of Jewish books that tells the story of God, the people of Israel, and their laws, songs, and wisdom.
Learn what the UK hundredweight is, how heavy it is in pounds and kilograms, where it came from, and how to convert it to other weight units.
The US hundredweight is a unit of weight equal to 100 pounds that helps measure large loads in farming, shipping, and industry.
A hectogram is a metric unit of mass equal to 100 grams, useful for measuring food, small packages, and other everyday items in a simple way.
A hogshead is a very large barrel used in history and today to hold liquids like wine, beer, and whiskey, with size that changes by country and use.
Hundred-cubic foot is a volume unit often used on gas and water bills to show how much space or fuel you used in a simple number.
A hectoliter is a metric unit for volume, equal to 100 liters, often used for drinks like wine and beer, and for crops, in many countries.