How much does a Boeing 747 and a 777 weigh?

Question

How much does a Boeing 747 and a 777 weigh?

Answer 1

The maxium take-off weight  for a Boeing 747 is 735,000 to 970,000. It just depends on the planes measurements. The maxium Take-off weight for a 777 is 545,000 to 775,000.

Answer 2

Aircraft have several 'significant' weights - basic empty weight, max takeoff weight, max taxi weight, max landing weight in specific configuration etc.  Since you did not specify which weight you are looking for, I will write about max takeoff weight - which is the maximum weight (aircraft, fuel, payload combined) you are allowed to be at - at the beginning of takeoff roll.

B747 and B777 come in different versions - with variations in weights.

B747-100 -      734,000 lbs (oldest)

B747-100B -   750,000 lbs

B747-200 -      800,000 lbs (early models)

B-747-200 -     833,000 lbs (late models)

B747-400 -      875,000 lbs (up to, some are less)

B747-400ER - 910,000 lbs

B747-8   -        970,000 lbs (projected)

B777-200  -     545,000 lbs

B777-200ER - 656,000 lbs

B777-300 -      660,000 lbs

B777-200LR -  766,000 lbs

B777-300ER - 775,000 lbs

Answer 3

Weigh too much!

Answer 4

The latest model of 747 (747-8I) weighs 410,000 pounds empty, with a maximum take-off weight of 970,000 pounds.

The 777-ER weighs 366,940 empty with a maximum take-off weight of 775,000 pounds