SimpleMMO calculator
SimpleMMO combat calculator
Enter total stats for you and your opponent, including gear and profession bonuses. The calculator applies the community-documented combat formula and shows your hit range, your chance to hit, your average damage per turn and how many turns each side needs to win.
On average, you win this fight.
3–52your hit (min–max)
87.5%your chance to hit
24.1your avg damage / turn
146turns for you to win
89your special-attack max hit
1–38their hit (min–max)
100.0%their chance to hit
19.5their avg damage / turn
154turns for them to win
How it's calculated
- Max hit = Strength − 9/11 × enemy Defence, rounded, never below 20.
- Min hit = Strength − 11/9 × enemy Defence, rounded, never below 1.
- Chance to hit = 3.5 × Dexterity ÷ enemy Defence, capped at 100%.
- Average damage = chance to hit × the midpoint of min and max.
- Turns to win = enemy HP ÷ average damage, rounded up. Both sides attack every turn, so whoever needs fewer turns wins on average.
These formulas come from the SimpleMMO community wiki, not the developer, so read the results as a strong estimate. Real fights are random rolls and can swing either way. To see what each stat is worth, read the stats guide.
More SimpleMMO guides and tools
Sources
- SimpleMMO Fandom wiki (community-maintained; parts are out of date) — read 2026-09-30
This is an unofficial fan site. We do not scrape SimpleMMO or use its account API. Community-documented numbers can lag behind the live game; if something here disagrees with what you see in game, trust the game and tell us.