Very general rule.
Blockfuel is between 5.25 and 5.5T for sectors of 4000Nm and more
So for the 233T A33O-200 that would come to 65 tons left giving a
11+ish hour range
for the 238Ton version add 1 hour.
Numbers can vary because of many different parameters, age of aircraft,
,age of engines,MTOW, engine version, CI,...
Interesting to know is that Qantas uses its 332 on flight QF26 from LAX to
Auckland , a 13.30h flight covering 6500NM
as a reference, the longest range A333 flight is done by Delta on their LAX to
Tokyo flight (DL283) a 11.45h flight covering 5450Nm