Only new taxis
in Bangkok use meters. They are called Taxi-Meter.
For older taxis fares must be negotiated before the trip. Fares
within Bangkok are 50 to 150 Baht. Practically all taxis are aircon.
Hotel taxis
have fixed tariffs, usually higher than those of regular taxis.
For travel
by taxi (or Tuk-Tuk, see below) it is sometimes convenient for
one to ask a Thai to write the name and address of one's destination
and place of return in Thai script. Most business establishments
will already have cards with their address in both English and Thai.