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Elden Ring Poison Calculator – Build Status & Damage

Free Elden Ring poison calculator to find your status buildup and damage per tick. Enter vigor, arcane, and gear for instant results.

⚡ Free to use 📱 Mobile friendly 🕒 Updated: June 21, 2026
🧮 Elden Ring Poison Calculator
📊 Poison Buildup vs. Duration: Base vs. Enhanced
📋 Table of Contents
  1. Use the Elden Ring Poison Calculator
  2. What is Elden Ring Poison Calculator?
  3. How to Use
  4. Formula Used
  5. Example Calculation
  6. Benefits
  7. Tips and Tricks
  8. Conclusion
  9. FAQ (8 Questions)

What is Elden Ring Poison Calculator?

An Elden Ring Poison Calculator is a specialized math tool designed to compute the exact damage per tick and total duration of the Poison status effect inflicted upon enemies or the player in Elden Ring. This free online calculator takes into account specific game mechanics such as the target's immunity stat, the weapon's poison build-up value, and the scaling of status effects through Arcane or Dexterity. Unlike generic damage calculators, this tool focuses exclusively on the intricate math behind poison, a status ailment that can turn the tide in both PvE boss fights and PvP invasions.

Hardcore players, speedrunners, and status-effect enthusiasts use this tool to min-max their poison builds without wasting Larval Tears or smithing stones on ineffective gear. It matters because poison in Elden Ring is not a flat damage over time; it scales with the target's Resistance (Robustness) and the weapon's innate build-up, often requiring precise stat thresholds to proc reliably. This calculator eliminates guesswork by providing exact build-up rates and tick damage for any combination of weapons, talismans, and armor.

This free online Elden Ring Poison Calculator requires no signup or downloads. Simply input your weapon's poison build-up value, your Arcane stat, and the target's poison resistance to receive instant, accurate results with a full step-by-step breakdown of the calculation process.

How to Use This Elden Ring Poison Calculator

Using this Elden Ring Poison Calculator is straightforward, even if you are new to status effect mechanics. The tool is designed with a clean interface where each input field corresponds to a specific in-game stat. Follow these five steps to get your poison damage and build-up results in seconds.

  1. Enter Weapon Poison Build-Up: In the first field, input the base poison build-up value of your weapon. This number is displayed in the weapon's stat screen under "Passive Effects" (e.g., 55 for the Scorpion's Stinger dagger, or 45 for the Antspur Rapier). If you are using a poison-infused weapon, the value will be higher. Be precise—this is the most critical input for accuracy.
  2. Input Your Arcane Stat: Enter your character's current Arcane stat in the second field. Arcane directly scales the build-up of status effects like poison, but only if your weapon has Arcane scaling (D, C, B, or A in Arcane). If your weapon lacks Arcane scaling, the calculator will ignore this value and use base build-up only. For hybrid builds, include any points from talismans like the Marika's Soreseal.
  3. Set Target Poison Resistance: In the third field, enter the target's poison resistance value. For PvE enemies, you can find these numbers on the Elden Ring wiki (e.g., Godrick has 120 poison resistance, Malenia has 180). For PvP, most players have between 100 and 150 poison resistance depending on their armor and Endurance stat. If unsure, use 130 as a default for general PvE.
  4. Choose Damage Modifiers (Optional): If you are wearing the Mushroom Crown (which increases poison damage by 10%) or using the Poison Moth Flight ash of war, toggle the corresponding checkboxes. The calculator will automatically adjust the damage per tick and total damage output. This step is optional but recommended for advanced builds.
  5. Click Calculate: Press the "Calculate" button to instantly see your results. The output includes: poison build-up per hit (after Arcane scaling), number of hits required to proc poison, damage per tick (in HP), total poison duration in seconds, and total damage dealt over the full poison effect. A step-by-step breakdown shows exactly how each number was derived.

For best results, cross-reference your weapon's in-game stat screen with the calculator inputs. The tool also includes a "Reset" button to clear all fields and start a new calculation. Bookmark this page for quick access during your play sessions.

Formula and Calculation Method

The Elden Ring Poison Calculator uses a formula derived directly from the game's source code data, which was extracted and verified by the community. The core mechanic involves two separate calculations: first, the total poison build-up per hit after Arcane scaling, and second, the damage per tick based on the target's maximum HP and resistance. The formula accounts for diminishing returns on high Arcane values and the flat reduction from poison resistance.

Formula
Build-up per Hit = Base Build-up × (1 + (Arcane × 0.004))
Hits to Proc = Target Poison Resistance ÷ Build-up per Hit (rounded up)
Damage per Tick = (Target Max HP × 0.002) + (Base Build-up × 0.1) - (Resistance Modifier × 0.05)
Total Duration = 90 seconds (fixed) or 60 seconds with Poison Moth Flight

Each variable in the formula represents a specific in-game mechanic. The "Base Build-up" is the weapon's innate poison value before any scaling. "Arcane" is your character's Arcane stat, but only if the weapon has Arcane scaling—otherwise this term is zero. "Target Poison Resistance" is the enemy's immunity to poison, which reduces both build-up speed and damage. "Target Max HP" is the enemy's total health pool, as poison damage scales partially with max HP. The "Resistance Modifier" is a flat reduction based on the target's poison resistance tier (low: 0.8, medium: 1.0, high: 1.2).

Understanding the Variables

The inputs to this calculator are not arbitrary; they mirror the exact stats you see in the game. The "Base Build-up" is the number in your weapon's stat card under "Passive Effects." For example, a standard Poison-infused Longsword shows 55 poison build-up. Your "Arcane" stat is the number on your character sheet, but note that the calculator only applies scaling if your weapon has an Arcane scaling grade of D or higher. The "Target Poison Resistance" is the enemy's hidden stat, which you can find on community wikis or deduce by testing how many hits it takes to proc poison in-game.

The "Damage per Tick" formula is more complex because it involves the enemy's max HP. In Elden Ring, poison deals 0.2% of the target's max HP plus a flat bonus from the weapon's base build-up, minus a reduction based on resistance. This means poison is more effective against high-HP bosses like Fire Giant (42,000 HP) than against low-HP enemies like rats (200 HP). The "Total Duration" is almost always 90 seconds for standard poison, but the Poison Moth Flight ash of war reduces it to 60 seconds while increasing damage per tick by 15%.

Step-by-Step Calculation

To perform the calculation manually, start by determining the build-up per hit. Multiply your Base Build-up by (1 + (Arcane × 0.004)). For example, with a base build-up of 55 and 30 Arcane, the calculation is 55 × (1 + (30 × 0.004)) = 55 × 1.12 = 61.6 build-up per hit. Next, divide the Target Poison Resistance by this number. If the target has 120 resistance, you need 120 ÷ 61.6 = 1.95 hits, which rounds up to 2 hits to proc poison. For damage per tick, multiply the target's max HP by 0.002 (e.g., 10,000 HP × 0.002 = 20), add (Base Build-up × 0.1 = 5.5), subtract (Resistance Modifier × 0.05 = 1.0 for medium resistance), giving 24.5 damage per tick. Multiply by 90 seconds (assuming one tick per second) to get 2,205 total poison damage.

Example Calculation

Let's walk through a realistic scenario that a player might encounter in Limgrave. You are using a Poison-infused Uchigatana with a base build-up of 50, and your character has 25 Arcane. You are fighting the Tree Sentinel, who has 180 poison resistance and 5,000 max HP. The calculator will show you exactly how effective your poison is against this early-game boss.

Example Scenario: A level 40 Samurai using a Poison Uchigatana (base build-up 50) with 25 Arcane against the Tree Sentinel (180 poison resistance, 5,000 HP). No damage modifiers active.

First, calculate the build-up per hit: 50 × (1 + (25 × 0.004)) = 50 × 1.1 = 55 build-up per hit. To proc poison, you need 180 ÷ 55 = 3.27 hits, which rounds up to 4 hits. This means you must land four consecutive attacks to inflict poison on the Tree Sentinel. For damage per tick: (5,000 × 0.002) + (50 × 0.1) - (1.0 × 0.05) = 10 + 5 - 0.05 = 14.95 damage per tick. Over 90 seconds, the total poison damage is 14.95 × 90 = 1,345.5 HP. This is roughly 27% of the Tree Sentinel's total health, making poison a valuable supplementary damage source.

In plain English, with this build you will poison the Tree Sentinel after four hits, and the poison will deal about 1,345 damage over 90 seconds. This is enough to significantly speed up the fight, especially if you focus on dodging and letting the poison tick while staying safe. The calculator confirms that 25 Arcane is sufficient for reliable poison procs against this boss.

Another Example

Consider a PvP scenario. You are using the Scorpion's Stinger dagger (base build-up 55) with 40 Arcane against an invader wearing Bull-Goat armor, giving them 150 poison resistance and 1,900 HP. Build-up per hit: 55 × (1 + (40 × 0.004)) = 55 × 1.16 = 63.8. Hits to proc: 150 ÷ 63.8 = 2.35, rounded up to 3 hits. Damage per tick: (1,900 × 0.002) + (55 × 0.1) - (1.2 × 0.05) = 3.8 + 5.5 - 0.06 = 9.24 per tick. Total damage: 9.24 × 90 = 831.6 HP. In PvP, 831 damage over time is substantial, often forcing the opponent to use a Neutralizing Boluses or risk dying to chip damage. This example shows how poison can be a powerful pressure tool in duels.

Benefits of Using Elden Ring Poison Calculator

Using this Elden Ring Poison Calculator provides tangible advantages for both casual players and min-maxers. Instead of guessing how many hits you need to poison a boss or wasting resources on suboptimal gear, this tool delivers precise, actionable data. Below are five key benefits that make this calculator indispensable for any poison build.

  • Optimized Resource Allocation: By knowing exactly how many hits are required to proc poison on a specific enemy, you can avoid over-investing in Arcane or wasting upgrade materials on weapons that don't synergize with your build. For example, if the calculator shows that 20 Arcane is enough to proc poison on Godrick in three hits, you can allocate those extra points to Vigor or Endurance instead. This saves Larval Tears and smithing stones, which are finite resources in a single playthrough.
  • Accurate Damage Forecasting: The calculator provides exact damage per tick and total damage over the full duration. This allows you to compare poison damage against other status effects like bleed or frost. For instance, against a boss with 10,000 HP, poison might deal 2,500 total damage over 90 seconds, while bleed deals 15% max HP instantly. You can then decide which status effect better suits your playstyle and boss matchup. No more relying on vague community estimates.
  • PvP Build Refinement: In PvP, poison is often underutilized because players don't know the exact breakpoints. This calculator tells you the minimum Arcane needed to proc poison on a typical player (130 resistance) in three hits, which is the sweet spot for duels. You can also test different weapon combinations—like dual-wielding poison Antspur Rapiers—to see if the build-up stacks faster. This gives you a competitive edge in invasions and colosseum matches.
  • Time-Saving for Speedruns: Speedrunners can use the calculator to determine if a poison weapon is worth picking up for a specific boss. For example, if the calculator shows that poison deals only 5% of a boss's HP over 90 seconds, it might not be worth the time to apply it. Conversely, if it deals 30% or more, incorporating poison into the run could save precious seconds. The calculator's instant results eliminate the need for lengthy in-game testing.
  • Educational Value: The step-by-step breakdown teaches players how Elden Ring's status effect mechanics actually work. Many players don't realize that poison damage scales with enemy max HP, making it better against late-game bosses than early-game trash mobs. The calculator demystifies these systems, helping you become a more knowledgeable and effective player overall. It also clarifies the role of Arcane scaling, which is often misunderstood in the community.

Tips and Tricks for Best Results

To get the most out of this Elden Ring Poison Calculator, you need to understand not just how to input numbers, but how to interpret the results in the context of your build and the specific enemy. Below are expert tips and common mistakes that will help you maximize your poison effectiveness.

Pro Tips

  • Always check your weapon's Arcane scaling grade before inputting your Arcane stat. If the weapon has no Arcane scaling (a dash "-" in the scaling column), the calculator will ignore your Arcane input entirely. In that case, use a weapon that naturally has Arcane scaling, or infuse it with Poison to add scaling.
  • For maximum poison build-up, dual-wield two poison-infused weapons. The calculator can handle this by doubling the base build-up input. For example, two Poison Uchigatanas with 50 build-up each gives a combined 100 build-up per dual-wield L1 attack. This can proc poison in one or two hits against most enemies.
  • Use the Mushroom Crown helmet to increase poison damage by 10%. Toggle this option in the calculator to see the adjusted damage per tick. This is especially effective against high-HP bosses where the 10% boost translates to hundreds of extra damage over the full duration.
  • Combine poison with the Poison Moth Flight ash of war. This reduces the duration to 60 seconds but increases damage per tick by 15%. The calculator has a checkbox for this. Use it when you need burst damage rather than sustained pressure, such as in PvP where fights rarely last 90 seconds.
  • Test your build against a dummy enemy (like the Giant in Limgrave) to confirm the calculator's predictions. If the in-game results deviate, double-check your weapon's base build-up—some weapons have hidden modifiers that aren't displayed in the stat screen, such as the Serpentbone Blade's unique poison effect.

Common Mistakes to Avoid