LoL XP Boost Calculator: Days Boost vs Per-Win Boost
This calculator tells you which XP boost pays more for the way you play. Riot’s own averages are the inputs: a 30-minute win earns about 204 XP and a 30-minute loss about 167, a Days boost doubles the base XP of every game while it runs, and a Per-Win boost adds a flat 210 XP or so to each won game no matter how long it lasts. Enter your games per day, win rate and the boost sizes you are comparing; add the RP prices from the client store if you want XP per 100 RP.
Updated November 11, 2026 · Source: Riot Support — Reward (BE/XP) System Breakdown (February 21, 2026)
LoL XP Boost Calculator
Compare a Days boost with Per-Win boosts for the way you actually play. Base XP uses Riot's averages (about 204 XP for a 30-minute win, 167 for a loss); a Days boost doubles base XP, a Per-Win boost adds about 210 XP to each win.
How the two boost types work
| Days boost | Per-Win boost | |
|---|---|---|
| Riot’s rule | “Double the base XP earned from a game”: 150 XP becomes 300 | “A flat amount of around 210 XP per game”; time played does not change it |
| What consumes it | Calendar time, whether you play or not | Wins only; losses do not use a charge |
| Best for | Many games per day in a short window | Few games per day, or an uneven schedule |
| Server downtime | Extended automatically during planned downtime | Extended automatically during planned downtime |
| Short or custom games | No XP under 7 minutes, none in custom games | Same |
Break-even in plain numbers
At a 50% win rate and 30-minute games, base XP is about 185 per game. A 7-day boost therefore returns roughly 185 extra XP per game you play in the week: four games a day is about 5,200 bonus XP, one game a day about 1,300. Ten Per-Win boosts return a fixed 2,100 XP whenever those ten wins happen. So the Days boost overtakes ten Per-Win boosts at about two games a day over the week, and falls behind for anyone who plays less. Co-op vs AI changes the base: from level 10 bots pay 90% XP, from level 20 80% and at level 30 75%, with a further cut after 180 minutes a day, so boosts on bot games return less.
What the calculator does not do
- It does not price the boosts. Riot’s support page lists no RP prices; take them from the client store and type them in for XP per 100 RP.
- It does not convert XP into levels. The XP per level curve is on our level calculator; what each level pays is in level borders and the rewards table on our Blue Essence guide.
- It ignores Battle Pass XP, which is a separate track; see the Event Pass guide.
FAQ
How much XP does a game of LoL give?
About 204 XP for a 30-minute win and about 167 XP for a 30-minute loss, according to Riot. Games under 7 minutes and custom games give nothing.
What does a Days XP boost do?
It doubles the base XP of every game for the number of days bought, whether or not you play; Riot’s example is 150 XP becoming 300.
What does a Per-Win XP boost do?
It adds a flat amount of around 210 XP to each won game, regardless of game length. Losses do not use a charge.
Which XP boost is better?
Days boosts pay more when you play roughly two or more games a day for the whole period; Per-Win boosts pay more for lighter or irregular play because they never expire unused.
Do XP boosts work in Co-op vs AI?
Yes, but on reduced base XP: 90% from level 10, 80% from level 20 and 75% at level 30, lower again after 180 minutes of bot games in a day.
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