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— League of Legends · Free tool

LoL rank decay calculator

Diamond and the apex tiers lose LP when they stop playing. Enter your tier, your banked days and how long you will be away — the tool shows when decay begins, the LP it takes, and the games that keep you safe.

Will my rank decay?

— —

—decay starts on day
—LP lost while away
—games to refill the bank
—games to cover your trip

Rules from Riot's official League of Legends wiki, read 2026-10-09: Diamond banks 7 days per ranked game (max 28, −50 LP a day once empty); Master, Grandmaster and Challenger bank 1 day per game (max 14, −75 LP a day). Decay never touches hidden MMR, and it ignores demotion protection.

How LoL decay works

Only Diamond and the apex tiers decay. Every completed ranked game adds days to a bank; when the bank hits zero the account loses LP daily until it plays again. Diamond is forgiving — a new Diamond account starts with a full 28-day bank and each game adds seven days — while Master and above start with ten banked days, bank one day per game up to fourteen, and lose 75 LP a day. Decay can cross tiers: Diamond IV at 0 LP drops into Emerald I, Master at 0 LP drops into Diamond, and neither drop is stopped by the usual demotion shield. Hidden MMR is untouched, so the games after a decay tend to pay well.

The practical rule is to top the bank up before a break: four Diamond games bank the full four weeks, fourteen apex games the full fortnight. If you will be away longer than the bank allows, a verified booster playing a handful of games on your account is the cheapest insurance — our net-wins service was built for exactly that. The decay guide has the rule table, the edge cases and what happens at a season boundary.

Decay rules at a glance

TierGrace periodDays banked per gameMax bankLP lost per day
emerald emblem Iron – EmeraldNo decay
diamond emblem Diamond28 days72850 LP
master emblem Master · Grandmaster · Challenger10 days (initial bank)11475 LP

Related League of Legends guides

— FAQ

Common questions

At what rank does LoL decay start?

Diamond. Iron through Emerald never decay. Diamond accounts start with 28 banked days and lose 50 LP per day once the bank is empty; Master, Grandmaster and Challenger start with 10 banked days, can bank at most 14, and lose 75 LP per day.

How many banked days does a game give?

Seven in Diamond (up to 28) and one in the apex tiers (up to 14). Only completed ranked games on the same queue count — a remake or a dodge does not.

Can decay drop me a tier?

Yes. Decay ignores the usual demotion protection: a Diamond IV account at 0 LP decays into Emerald I, and a Master account at 0 LP drops back into Diamond. Decay changes only your visible rank and LP — your hidden MMR is untouched, so games after a decay pay well.

How do I stop decay while I am away?

Fill the bank before you leave: four Diamond games bank the full 28 days, 14 apex games the full 14. Our Diamond and Master boosters can play the games that refill it while keeping the rank where it is — the net-wins service is built for that.

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