TFT interest and rolling calculator
Enter your gold and see your interest, the next breakpoint and what rolling costs you.
Interest you earn now: 3 gold per round.
You need 10 more gold for the next point of interest.
At that income and with interest, you would reach 50 gold in about 3 rounds.
What rolling costs
Rolling 3 times costs 6 gold and leaves you with 24.
You would drop from 3 to 2 interest per round: about 1 gold less every round.
How it works
At the end of each round you earn 1 gold of interest for every 10 you have saved, up to 5. So 38 gold gives the same interest as 30.
Rolling costs 2 gold. The calculator subtracts it from your gold and compares the interest before and after.
The rounds to reach 50 are an estimate: it adds your income plus the interest each round and ignores spending, so use it as an order of magnitude.