I really want to travel around the world for 6-12 months one day. I want to travel to USA, South America, Europe, Russia, Asia, Australia, and of course Tahiti, Hawaii, etc. I would like to stay in a good hotel, it doesn’t have to be 5 stars hotel, but I don’t want to stay in hostels either.
I think 000 would be enough. What do you think?

$35,000 possible, but pretty cheap hotels and food. Airfare for an economy world fare is about $9,000-$10,000 with some restrictions. Adding some train passes probably around $12,500 for travel.
Conservative Guess: $60 / Day for food and lodging
$60 * 7 = $420
Entertainment(Museums, going out once in while and eating good food once a week) $100
Per week you are looking at $520 * 52 = about $27,000 for the year on food, hotel, and entertainment on the cheap side.
Your choices though look expensive (parts of Europe are expensive, Hawaii and Tahiti are also expensive, Japan is expensive)
Better guess 95 per day on food and hotel $665 per week plus $150 for entertainment = $815 per week gets you to about $42,000.
My guess is $40,000 – $55,000 to just travel around comfortable budget style with no shopping.
Sounds like fun, when can I come along?
well ya or a bit more
Sounds plenty to me. The flights and accommodation will probably take the biggest bite out of your budget, but I’d even get away with $20,000 I reckon, or even less, although all depending on where you go and how far you explore each country.
i think 50000 because you have to expect the unexpected plus you might see something that you really want. what about the different tax rates in the other countries???
That would be plenty if you plan carefully. Consider homestays in various countries as that will bring the price down and you will meet locals that way … We did a trip like that (though much shorter) and it was awesome. Story below is how we got the around the world tickets. The advice may save you some time …
More than that.
well just to be safe add about 5 more thousand just in case because things are going up like food and etc