What does a cubic meter of LNG weigh?

Answer 1

the question is nonsense as written, but if you meant to ask ;

How many liters in one cubic meter of natural gas?

...then the answer is 1000

How much does one cubic meter of natural gas weigh in kilograms?

...then the answer at 20°C & 1 atm (NTP) is 0.668

...and the answer at 0°C & 1 atm (STP) is 0.717

Answer 2

Depends on the pressure. at atmospheic pressuer the weight would be the same as that of air.

Answer 3

20°C & 1 atm (NTP) is 0.668

Alternative: 0°C & 1 atm (STP) is 0.717

Answer 4

10000000