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### Course: 4th grade (Eureka Math/EngageNY)>Unit 2

Lesson 1: Topic A: Metric unit conversions

# Metric system: units of weight

Sal discusses metric units of mass or weight such as milligram, gram, and kilogram. Created by Sal Khan.

## Want to join the conversation?

• Pounds to liters
• That's not terribly possible, since pounds is measuring weight and liters is amount of a liquid.
• is there any weight that is smaller then millagram??
• Yes. There are micrograms (1/1000 milligrams), nanograms (1/1million milligram), and picograms (1/1billion milligram), just to name a few.
• How do we divide pounds then turn them into decimal multiplied by 8
• why is the metric system so confusing why
• Because it is not the usual measurement system that we use here in the United States. Our system could be just as confusing for someone say from England who is use to the metric system.
• so tell me is a millimeter smaller than a milliter and a centimeter
• Yes, a millimeter is smaller than a centimeter, because the prefix milli- is 1/1000, and centi- is 1/100.
• can u d a video about the different type of tons
• There are three slightly different kinds of tons.

A United States ton is exactly 2,000 pounds (about 907.2 kilograms).
A metric ton (tonne) is about 2,205 pounds (exactly 1,000 kilograms).
An imperial ton (used in the United Kingdom) is exactly 2,240 pounds (about 1,016 kilograms).

Note that the U.S. ton is the lightest ton, and the imperial ton is the heaviest ton. The metric ton is heavier than the U.S. ton but lighter than the imperial ton.

Have a blessed, wonderful day!
• Question when someone weighs 67.8 what does that convert to in terms of pounds.
• If you are talking about kilograms than the conversion between kilograms to pounds is usually 1 kilogram ≈ 2.2 pounds or the other way around 1 pound ≈ 0.45 kilograms.
• how do you tell the diffrence from kiligrams and grams
• A kilogram is 1,000 grams, so a kilogram is much heavier than a gram.

Have a blessed, wonderful day!