What is the approximate upper size limit generally used to define a meteoroid before it is categorized as an asteroid?

Answer

About one meter in diameter

A meteoroid is generally defined by its size, ranging up to about one meter in diameter; objects larger than this are typically categorized as asteroids.

What is the approximate upper size limit generally used to define a meteoroid before it is categorized as an asteroid?
MeteorSpaceastronomyEarthgroundmeteoritefragments