# How to convert kilograms to milligrams and tons to ounces | Khan Academy | Summary and Q&A

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September 11, 2015
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How to convert kilograms to milligrams and tons to ounces | Khan Academy

## TL;DR

This video explains how to convert kilograms to milligrams and tons to ounces using the metric system and the US customary system.

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### Q: How do you convert kilograms to milligrams?

To convert kilograms to milligrams, first convert kilograms to grams by multiplying by 1000. Then, convert grams to milligrams by multiplying by another 1000. For example, 3 kilograms is equal to 3000 grams, which is equal to 3 million milligrams.

### Q: How do you convert tons to ounces?

To convert tons to ounces, first convert tons to pounds by multiplying by 2000. Then, convert pounds to ounces by multiplying by 16. For example, 4 tons is equal to 8000 pounds, which is equal to 128,000 ounces.

### Q: What is the prefix "kilo" in the metric system?

In the metric system, the prefix "kilo" represents a factor of 1000. So, when converting from kilograms to grams, you multiply by 1000 to get the number of grams.

### Q: How many milligrams are in 1 gram?

There are 1000 milligrams in 1 gram. This means that when converting from grams to milligrams, you multiply by 1000 to get the number of milligrams.

## Summary & Key Takeaways

• The video teaches how to convert 3 kilograms to milligrams and 4 tons to ounces.

• To convert kilograms to milligrams, first convert kilograms to grams (1 kilogram = 1000 grams) and then convert grams to milligrams (1 gram = 1000 milligrams).

• To convert tons to ounces, first convert tons to pounds (1 ton = 2000 pounds) and then convert pounds to ounces (1 pound = 16 ounces).