Naki:
There are many claims, but I think it is generally accepted that Ron and Krys's croc mentioned above is the largest that anyone has reliably run a tape over in modern times. It was 28 ft 4 inches.

Mark that out on your living-room floor and stand back in stunned silence!

On a related note, a mate recently sent me footage of a reticulated python from Sumatra measuring 49 feet!

We marked that out across the living room floor, through the kitchen, across the hall, through the laundry, and out the back door to the side fence! Unfknbelievable!