It is a matter of relative distance.
"Right here" is closest.
"Here" means close; at the same place where I am.
"There" means a little farther away.
"Over there" means even farther.
"Way over there" means farther still.
If I am sitting in my car, I might say:
"The steering wheel is right here."
"The headlight switch is here."
"The radio is there."
"The glove compartment is over there."
"The maps are way over there in the passenger door's map pocket; I can't reach them."
The distances can't be measured in centimeters or meters. They are vague and they are on whatever scale the speaker is thinking about.
The mailbox is right here, in front of the pharmacy.
The pharmacy is here.
The supermarket is there.
The police station is over there, across the street.
The bank is way over on the other side of town.