Conversion may seem complicated but here's a trick that will help you convert any unit without any problem. The basic rule is:

If you need to convert from a larger unit to a smaller unit, multiply.

You will make the number bigger and multiplication is all about making numbers bigger. Here we convert one yardstick to three rulers:

Convert from a larger unit to a smaller unit

If you need to convert from a smaller unit to a larger unit, divide.

You will make the number smaller and, as you already know, division is all about making numbers smaller.

"Converting units: metric distance " by Khan Academy is licensed under CC BY 4.0

Converting units: centimeters to meters

"Converting units: metric distance " by Khan Academy is licensed under CC BY 4.0