loldamagecalculator.com
More champions coming soon.
Saved builds
No saved builds yet. Set up a champion, items, runes and level, then hit Save current build. Builds are stored in your browser.
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Feedback
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Sent.
Fixes show up in the version history.
Version history & roadmap
Version history
v0.09
August 28, 2026
  • Katarina burst (default E-Q-W-E-R).
  • Anivia burst (R-Q-E, Frostbite doubles if chilled, Glacial Storm ticks).
  • Soraka burst (Q and E; W/R are heals and score 0).
  • Default items: Katarina Nashor's + Lich Bane + Shadowflame; Anivia Rod of Ages + Archangel's Staff + Liandry's Torment; Soraka Moonstone + Redemption + Dawncore.
  • Death Lotus is modeled as 15 daggers on a single dummy (2.5s channel, dagger every 0.166s). On-hit/on-attack at wiki reduced effectiveness per dagger.
  • Anivia Glacial Storm default 6 ticks (slider 1–8). First 3 ticks unempowered, then empowered (300%) once the storm is fully formed.
  • Numbers from wiki.leagueoflegends.com ability templates (SR, patch 26.17): Katarina Q/W/E/R + Voracity, Anivia Q/W/E/R, Soraka Q/W/E/R.
  • Ability / rank / combo box now shows for all six champions (burst:true on Katarina, Anivia, Soraka).
v0.08
August 28, 2026
  • Naafiri burst: default combo W-Q-E-Q-R, items Voltaic Cyclosword + Axiom Arc + Serylda's Grudge.
  • Ability names and spell icons are now per champion (Jax kit no longer leaks onto other champs).
  • Combat numbers updated to patch 26.17 (Hail of Blades and an item stat pass).
  • Hail of Blades: 90% melee / 60% ranged attack speed; true damage 2–20 +12% bonus AD +10% AP. Jax's Empower still adds a fourth proc.
  • Item stats: Berserker's Greaves 30% AS, Gunmetal Greaves 45% AS, Stormrazor 25% AS, Sundered Sky 40 AD, Black Cleaver 45 AD, Eclipse Ever Rising Moon 8% max HP, Tiamat 25 AD, Spellslinger's Shoes 20 magic pen, Chainlaced Crushers 25 MR.
  • Jax default haste total now includes Nashor's 15 ability haste (Lich Bane 10 + Nashor's 15).
  • Naafiri Q recast dumps remaining bleed (ticks over 5s are not scored unless recast). Call of the Pack's +20% AD and extra packmates apply to later hits. Packmate autos unmodeled; R includes pack collision.
  • Nidalee (and other non-Jax champs) no longer also score Jax's Leap Strike / Empower / Grandmaster in the same combo.
v0.07
August 6, 2026
  • Spellblade now counts one proc per combo by default. A new 2nd Spellblade toggle under Item effects models a later cast re-arming it — the proc lands on the first attack after that cast, labelled with what re-armed it.
  • Sharing the site now shows a preview card with a screenshot (social preview image).
v0.06
July 31 – August 3, 2026
  • Every icon, font and script is now served from this site — no third-party requests.
  • Rune path pickers show the real path icons instead of letters.
  • Hero level slider redrawn — no stray white track, and it matches the other sliders.
  • Spellblade mode picker removed in favour of the real 1.5s cooldown.
  • Shop filters use Riot's own item tags, so they match the in-game shop. Life Steal & Vamp now picks up omnivamp items, 20 items gained missing Ability Haste, Sterak's and Mikael's no longer tagged MR.
  • 13 missing shop items added: Boots, Long Sword, Cull, all four Doran's, Dark Seal and the four Guardian's items.
  • Support items added, shown only for the Support role: World Atlas, Celestial Opposition, Dream Maker, Zaz'Zak's Realmspike, Solstice Sleigh, Bloodsong.
  • Jax's Empower resets the attack timer, so a combo with W gets a fourth Hail of Blades proc.
  • New Scalings panel: one icon per ability, scaling rune and item proc, each showing a single instance of its damage. Hover for the formula.
  • Dark Harvest souls slider (0–40).
  • Gathering Storm covers 0–50+ minutes with the real cumulative values (0, 8, 24, 48, 80, 120 AP).
  • Right-click an inventory item to sell it.
  • Header compacted to one row.
  • Hover descriptions no longer resize and push the page around.
  • Save button fixed — no browser prompt, and build names are editable on the Saved builds page.
  • Runes card bottom row split into three columns.
  • Ability icons now come from Riot's art.
  • Simpler version numbers: v0.06 instead of v0.1.06.
  • Site title links back to the calculator from any page.
  • Target dummy panel moved under Items.
  • Feedback form added, in the footer.
  • Mobile pass: single column, no sideways scrolling at 390px, bigger touch targets, ‹ › buttons to reorder combo steps.
  • Inventory respects real slot limits: 6 items, plus a boots-only 7th slot for Bot.
  • Summon Aery and Arcane Comet now proc in the combo.
  • Cut Down fixed — it was selectable but did nothing. Now 5–15% by health difference, and it amplifies true damage.
  • Rune pages follow the real pick rules: keystone plus one per primary row, exactly 2 secondary, max one per row.
  • Hovering a rune shows what it does.
  • Summoner spells added (pick 2). Ignite and Smite are combo steps, Flash arms Sudden Impact, Barrier and Teleport count in EHP, Ghost feeds the Speed tab.
  • “Effective HP” tab renamed “EHP calculator”.
  • Scorch and Cheap Shot calculate automatically instead of sitting in the toggle list.
  • Max health uses each champion's own base and growth. Affects Cut Down, Giant Slayer and Titanic Hydra.
  • Toggle list trimmed to runes that actually change these numbers.
  • Riftmaker and Liandry's amps ramp over the combo instead of starting at full strength.
  • Item audit against the live wiki. Lich Bane 100 AP, 6% MS, 10 haste. Stormsurge Squall now a flat 125 +10% AP — it was far too high. Rageblade gains its 32% Seething Strike attack speed and Phantom Hit.
  • Also fixed: Archangel's counts bonus mana only, Voltaic Cyclosword lethality added, Muramana Shock uses the ranged value for Nidalee's human form, attack speed uses each champion's own base and growth.
  • Rune audit against the live wiki. Electrocute was badly out of date: now 70–260 +10% bonus AD +5% AP, with the correct damage type. Dark Harvest rebuilt: 30 (+11 per soul) +10% bonus AD +5% AP. Summon Aery 10–54.71, Cheap Shot 10–49.12. Sudden Impact is also armed by Teleport and Rocketbelt.
  • Checked and unchanged: Nashor's Tooth, Dusk and Dawn, Muramana, Terminus, Arcane Comet, Scorch, Hail of Blades, Coup de Grace, Last Stand, Absolute Focus, Conqueror, stat shards.
  • Default builds per champion, from this patch's most-built items.
v0.05
July 30, 2026
  • Deploys switched to plain site files, replacing the self-unpacking bundle that could make the site render as raw code.
  • Real page title and description for browser tabs and search.
v0.04
July 30, 2026
  • Patch 26.15: Terminus on-hit scales (30 +10% bonus AD +10% AP), Yun Tal Wildarrows 3000g and 45% AS, Bastionbreaker 3000g, Jack of All Trades 8/20 adaptive force at 5/10 stats (from 10/25).
  • No changes to Jax, Nidalee, Anivia or Soraka.
v0.03
July 30, 2026
  • This page: version history and roadmap.
  • DPS calculator removed from the top tabs; it now sits on the roadmap.
  • Versioned, dated release builds.
v0.02
July 2026
  • Patch 26.14: every changed item verified; Hextech Rocketbelt AP and HP updated.
  • Speed calculator tab: movement speed with soft caps and conditional item toggles.
  • Nidalee burst model. Anivia and Soraka Effective HP support.
  • Role picker: tier-3 boots are Mid-only, levels 19–20 Top-only, one pair of boots per build.
  • Rune rows keep exactly one pick per row.
  • “Item actives and passives” master switch.
v0.01
July 2026
  • First release at loldamagecalculator.com (patch 26.13).
  • Jax burst calculator: drag-and-drop combo and items, Hail of Blades, per-hit damage breakdown.
  • Effective HP visualiser with practice-dummy health bar.
  • Runes and shards, ~180 items, saved builds, build persistence.
Coming up
Next up Combo timeline: lay the combo out on a real time axis and see exactly when each proc lands — Spellblade cooldowns, on-hit ramps, damage over time. Replaces the Spellblade mode picker that was removed in v0.06.
Next up DPS calculator: sustained damage over a full fight, not just one combo.
Planned Target dummy roles: pick ADC, fighter or tank and the dummy scales itself to your hero level and item gold, taking on the health, armor and MR a real champion would have at that point.
Planned Full enemy builder: build the actual champion you are fighting, including defensive effects like Randuin's crit reduction or Irelia's passive damage reduction. Complicated — later.
Planned League Classic version of the site (Riot's retro game mode went live in 26.15).
Planned Total stats page: every final stat of your build (AD, AP, AS, pen, resists, runes included) in one view.
Planned More champions.
Planned Remaining item actives and conditionals (Youmuu’s Ghostblade, Shurelya’s Battlesong).
Planned Damage over time and on-hit ramps (Liandry’s Torment, Scorch).
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R · champions hit by swing{{ rHitsStr }}
{{ rResistLine }}
{{ rArmBreak }}
Javelin Toss · missile distance{{ nidJavStr }}
0% = point-blank · 100% = max-range poke (+225% damage). Javelin & Bushwhack apply Hunt → first Takedown +30%.
Effective-HP only — a full-health second life for 6s. Resists swing from −40 (fragile) early to +20 (tanky) at level 18.
Glacial Storm · ticks{{ aniviaRTicksStr }}
Wiki tick every 0.5s. Default 6 ticks (3s). First 3 ticks are unempowered; later ticks are fully formed (300% damage) and apply Chill.
Ability-based options for {{ noticeName }} will appear here once the combo is modelled.
Item effects
Critical strikes
{{ critLine }} {{ penLine }}
Hero level
{{ level }}
1 6 9 11 16 {{ levelMax }}
Ability ranks {{ pointsText }}
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Burst combo · drag to reorder
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Add steps below…
ADD STEP
Summoner spells
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Inventory{{ invCount }}
Boots 7th slot
Target dummy
The stats of the target you're hitting.
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Burst combo for {{ noticeName }} — coming soon
The burst calculator currently models Jax's abilities and combo. {{ noticeName }}'s abilities need their own damage model — coming next. In the meantime, the Effective HP calculator fully supports {{ noticeName }} with accurate base stats.
Current vs locked {{ deltaStr }} {{ deltaSub }}
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effective
{{ b.totalRawStr }} raw  ·  {{ b.asStr }} atk/s
◼ Phys {{ b.physEffStr }} ◼ Magic {{ b.magEffStr }} ◼ True {{ b.trueEffStr }}
{{ row.label }} ITEM {{ row.effStr }}

Effective Health

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{{ dummy.rawStr }} {{ dummy.ehpStr }}
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{{ b.label }} {{ b.ehpStr }} EHP
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Attacker damage split (drives the mixed bar){{ ehpSplitStr }}

Movement Speed

{{ speed.finalStr }}
effective MS
{{ speed.taxStr }}
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Item effects · conditional MS
Add an item with a conditional move-speed effect (e.g. Mejai's Soulstealer, Dead Man's Plate) to toggle it here.
RAW · {{ speed.rawStr }}
EFFECTIVE · {{ speed.finalStr }}
415 490 {{ speed.axMax }}
{{ r.label }}{{ r.val }}
Scalings
Nothing dealt damage in this combo yet.
{{ c.valStr }}
{{ st.label }} {{ st.val }}
{{ fxTipName }} {{ fxTipMeta }}
{{ p.text }}{{ p.add }}
Runes
One rune per row · use the toggles below to switch an effect off. Gold labels affect this burst.
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{{ runeTipDesc }}
Primary path
{{ primaryName }}
Secondary path · pick 2
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Stat shards · one per row
Role
Jungle companion
Gathering Storm · game time
Stacks & conditions
Runes you pick appear here as on/off toggles. Jack of All Trades cycles off / 5 / 10 stacks.
Dark Harvest souls {{ dhSoulsStr }}
v0.09 · Patch 26.17