Depends on the plane, from the biggest (Airbus A380) 276,800kg to a smaller plane (Boeing 737) 38,147kg, however this is only the empty weight you also have to factor in passengers, fuel and luggage.
you have to weigh at least 85 lbs. to ride in the passenger seat
A passenger bus can weigh in a range from 15,000 pounds to 30,000 pounds.
== ==
Judging on the Cessna Skyhawk, a four seater, propeller aircraft, around the $75,000 to $500,000 mark
625 pounds
a weight
around 0.32 grammes
I have small screwdrivers that weigh about one ounce.
12 or older
thousands of dollars
200