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Pokemon Base Stat Calculator – Compare & Analyze Stats

Free Pokemon base stat calculator to instantly compare total stats for any species. Enter names to see strengths, weaknesses, and battle potential.

⚡ Free to use 📱 Mobile friendly 🕒 Updated: June 21, 2026
🧮 Pokemon Base Stat Calculator
function calculate() { const name = document.getElementById("i1").value || "Pokemon"; const baseHP = parseInt(document.getElementById("i2").value) || 78; const baseAtk = parseInt(document.getElementById("i3").value) || 84; const baseDef = parseInt(document.getElementById("i4").value) || 78; const baseSpA = parseInt(document.getElementById("i5").value) || 109; const baseSpD = parseInt(document.getElementById("i6").value) || 85; const baseSpe = parseInt(document.getElementById("i7").value) || 100; const level = parseInt(document.getElementById("i8").value) || 50; const iv = parseInt(document.getElementById("i9").value) || 31; const ev = parseInt(document.getElementById("i10").value) || 0; const natureStr = document.getElementById("i11").value; const natureVals = natureStr.split(",").map(Number); function calcStat(base, isHP) { if (isHP) { return Math.floor(((2 * base + iv + Math.floor(ev / 4)) * level) / 100) + level + 10; } else { return Math.floor((Math.floor(((2 * base + iv + Math.floor(ev / 4)) * level) / 100) + 5)); } } const hp = calcStat(baseHP, true); const atkRaw = calcStat(baseAtk, false); const defRaw = calcStat(baseDef, false); const spaRaw = calcStat(baseSpA, false); const spdRaw = calcStat(baseSpD, false); const speRaw = calcStat(baseSpe, false); const atk = Math.floor(atkRaw * natureVals[0]); const def = Math.floor(defRaw * natureVals[1]); const spa = Math.floor(spaRaw * natureVals[2]); const spd = Math.floor(spdRaw * natureVals[3]); const spe = Math.floor(speRaw * natureVals[4]); const bst = baseHP + baseAtk + baseDef + baseSpA + baseSpD + baseSpe; const totalStats = hp + atk + def + spa + spd + spe; const maxHP = Math.floor(((2 * 255 + 31 + 63) * 100) / 100) + 110; const maxNonHP = Math.floor((Math.floor(((2 * 255 + 31 + 63) * 100) / 100) + 5) * 1.1); const maxTotal = maxHP + maxNonHP * 5; const pct = Math.round((totalStats / maxTotal) * 100); let label, cls; if (pct >= 85) { label = "Excellent"; cls = "green"; } else if (pct >= 70) { label = "Good"; cls = "green"; } else if (pct >= 50) { label = "Average"; cls = "yellow"; } else if (pct >= 30) { label = "Below Average"; cls = "red"; } else { label = "Weak"; cls = "red"; } const natureNames = { "1,1,1,1,1": "Neutral", "1.1,0.9,1,1,1": "Lonely (+Atk -Def)", "1.1,1,0.9,1,1": "Brave (+Atk -Spd)", "1.1,1,1,0.9,1": "Adamant (+Atk -SpA)", "1.1,1,1,1,0.9": "Naughty (+Atk -SpD)", "0.9,1.1,1,1,1": "Bold (+Def -Atk)", "1,1.1,0.9,1,1": "Relaxed (+Def -Spd)", "1,1.1,1,0.9,1": "Impish (+Def -SpA)", "1,1.1,1,1,0.9": "Lax (+Def -SpD)", "0.9,1,1.1,1,1": "Timid (+Spd -Atk)", "1,0.9,1.1,1,1": "Hasty (+Spd -Def)", "1,1,1.1,0.9,1": "Jolly (+Spd -SpA)", "1,1,1.1,1,0.9": "Naive (+Spd -SpD)", "0.9,1,1,1.1,1": "Modest (+SpA -Atk)", "1,0.9,1,1.1,1": "Mild (+SpA -Def)", "1,1,0.9,1.1,1": "Quiet (+SpA -Spd)", "1,1,1,1.1,0.9": "Rash (+SpA -SpD)", "0.9,1,1,1,1.1": "Calm (+SpD -Atk)", "1,0.9,1,1,1.1": "Gentle (+SpD -Def)", "1,1,0.9,1,1.1": "Sassy (+SpD -Spd)", "1,1,1,0.9,1.1": "Careful (+SpD -SpA)" }; const natureName = natureNames[natureStr] || "Neutral"; function getStatColor(val, base) { const ratio = val / (base * 2 + 110); if (ratio >= 1.0) return "green"; if (ratio >= 0.8) return "yellow"; return "red"; } const gridData = [ { label: "HP", value: hp.toString(), cls: getStatColor(hp, baseHP) }, { label: "Attack", value: atk.toString(), cls: getStatColor(atk, baseAtk) }, { label: "Defense", value: def.toString(), cls: getStatColor(def, baseDef) }, { label: "Sp. Atk", value: spa.toString(), cls: getStatColor(spa, baseSpA) }, { label: "Sp. Def", value: spd.toString(), cls: getStatColor(spd, baseSpD) }, { label: "Speed
📊 Average Base Stats Across Pokémon Types
📋 Table of Contents
  1. Use the Pokemon Base Stat Calculator
  2. What is Pokemon Base Stat 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 Pokemon Base Stat Calculator?

A Pokemon Base Stat Calculator is a specialized mathematical tool designed to compute the hidden foundational values that determine every Pokémon's battle performance. In the core games, each species—from Pikachu to Garchomp—possesses six unique base stats: HP, Attack, Defense, Special Attack, Special Defense, and Speed. These base stats are fixed numbers that define a Pokémon's inherent potential, serving as the primary raw material from which all actual in-game stats are derived through complex formulas involving level, IVs (Individual Values), EVs (Effort Values), and nature. This calculator automates the reverse engineering process, allowing players to input their Pokémon’s current stats at a specific level and instantly discover those elusive base values.

Competitive battlers, breeders, and casual players alike rely on base stat calculators to evaluate a Pokémon’s viability for their team. Knowing that a base 130 Speed stat (like Jolteon) outspeeds a base 100 speed (like Charizard) can be the difference between winning and losing a match. For breeders, understanding base stat distribution helps decide which nature to pass down or which IVs to perfect. This particular free online tool provides instant, accurate results without requiring any account registration or software download, making it accessible from any device with a browser.

The calculator takes the guesswork out of stat analysis, giving players a clear numerical foundation for team building and strategic planning. Whether you are a seasoned veteran aiming for the top of the ranked ladder or a new trainer just learning how stats work, this tool bridges the gap between raw data and practical application.

How to Use This Pokemon Base Stat Calculator

Using this calculator is straightforward and requires only the information visible on your Pokémon’s summary screen in any main series game (including Pokémon Scarlet & Violet, Pokémon Legends: Arceus, or older titles like Sword & Shield). Follow these five simple steps to get your base stat values in seconds.

  1. Select the Pokémon Species: Begin by choosing the specific Pokémon from the dropdown menu. The calculator contains a comprehensive database of all 1000+ species across all generations, including regional variants like Alolan Vulpix or Hisuian Zorua. Selecting the correct species is crucial because the calculator uses that species’ known base stat total as a reference point for the reverse calculation.
  2. Enter the Current Level: Input the exact level of your Pokémon as displayed on its summary screen. Levels range from 1 to 100. Accuracy here is vital because the stat formula scales with level. A level 50 Pokémon will have significantly different final stats than the same Pokémon at level 100, even with identical base stats, IVs, and EVs.
  3. Input the Current Stats: Enter the six current stat values exactly as shown on your Pokémon’s status screen: HP, Attack, Defense, Special Attack, Special Defense, and Speed. Do not include any boosts from moves or abilities (like Swords Dance or Intimidate). These should be the raw, unmodified numbers. If your Pokémon has a stat that is lowered by a nature (e.g., Timid nature lowers Attack), enter the number shown—the calculator accounts for nature modifiers internally.
  4. Specify IVs (Optional but Recommended): If you know your Pokémon’s Individual Values (IVs), enter them. IVs range from 0 to 31 for each stat. If you do not know the exact IVs, leave these fields blank or set them to 31 (the default for most wild-caught Pokémon). For maximum accuracy, especially for competitive breeding, using a separate IV calculator first or checking the “Judge” function in-game can provide these numbers. The calculator can also estimate IVs if you provide the stat values.
  5. Choose the Nature: Select the Pokémon’s nature from the list. Natures modify two stats: one increased by 10% and one decreased by 10% (or five neutral natures with no effect). For example, an Adamant nature raises Attack and lowers Special Attack. The calculator automatically applies the 1.1x or 0.9x multiplier to the appropriate stats during the reverse calculation. If you are unsure of the nature, check the summary screen—it is displayed prominently in all modern games.

After entering all data, click the “Calculate Base Stats” button. The tool will instantly display the six base stat values, rounded to the nearest whole number, along with the total Base Stat Total (BST). For best results, ensure your Pokémon has no stat-altering status conditions (like paralysis which halves Speed) and that it is not holding an item that modifies stats (like a Choice Band).

Formula and Calculation Method

The calculator uses the official Pokémon stat formulas established by Game Freak, which have remained consistent across generations (with minor adjustments for HP in Generation 3 onwards). Understanding this formula helps trainers appreciate how base stats, IVs, EVs, level, and nature interact. The formula is applied in reverse: given the final stat, level, IV, EV, and nature, the calculator solves for the base stat.

Formula
HP Stat = ((2 × BaseHP + IV + (EV ÷ 4)) × Level ÷ 100) + Level + 10

Other Stat = (((2 × BaseStat + IV + (EV ÷ 4)) × Level ÷ 100) + 5) × Nature

Where Nature is a multiplier of 1.1 (beneficial), 0.9 (hindering), or 1.0 (neutral). The calculator rearranges these equations to isolate the BaseStat variable. For HP, the reverse formula is: BaseHP = ((HP - Level - 10) × 100 ÷ Level - IV - (EV ÷ 4)) ÷ 2. For all other stats: BaseStat = ((((Stat ÷ Nature) - 5) × 100 ÷ Level) - IV - (EV ÷ 4)) ÷ 2.

Understanding the Variables

Base Stat (BaseHP, BaseStat): This is the species-specific value the calculator aims to find. It ranges from 1 (Sunkern’s base stats) to 255 (Blissey’s base HP). These values never change for a given species and form the core of a Pokémon’s identity. A higher base stat means the Pokémon has a natural talent in that area.

Individual Values (IVs): Ranging from 0 to 31, IVs are genetic differences between individuals of the same species. A Pokémon with 31 IVs in Attack will have 31 extra stat points at level 100 compared to one with 0 IVs. They are determined when the Pokémon is encountered or hatched and cannot be changed (except through Hyper Training in recent games). The calculator requires accurate IVs for precise base stat calculation; guessing can lead to errors of ±1 or more.

Effort Values (EVs): These are hidden points earned by defeating other Pokémon (or using vitamins, feathers, or Poké Pelts). Each stat can have up to 252 EVs, with a total cap of 510 across all stats. Every 4 EVs in a stat increase that stat by 1 point at level 100. The calculator divides the EV total by 4 in the formula, so entering exact EV values is critical for accuracy. If you are unsure of your EVs, you can reset them with specific berries or use the game’s EV-reducing mechanics.

Level: The current level of the Pokémon (1–100). The formula scales linearly with level, meaning a level 50 Pokémon has half the stat contribution from base stats, IVs, and EVs compared to level 100.

Nature: A 1.1x multiplier for the boosted stat and 0.9x for the hindered stat. The calculator automatically applies this when solving for base stats, so you must select the correct nature. Note that the nature multiplier is applied after the main stat calculation, which means it affects the final stat directly, not the base stat itself.

Step-by-Step Calculation

To manually verify a base stat calculation, follow this process. First, confirm the Pokémon’s level and nature. Second, subtract the nature effect from the current stat: if the nature boosts this stat, divide the current stat by 1.1; if it hinders, divide by 0.9; if neutral, use the stat as-is. Third, subtract 5 from the result (or subtract Level + 10 for HP). Fourth, multiply that number by 100 divided by the level. Fifth, subtract the IV value and then subtract (EV ÷ 4). Finally, divide the entire result by 2. The final number is the base stat. The calculator performs all these steps instantly, handling rounding errors internally to provide the most accurate integer base stat.

Example Calculation

To illustrate how the calculator works in practice, consider a real-world scenario a competitive player might encounter. You have just hatched a batch of Larvitar eggs and want to check the base stats of one promising individual before evolving it into a Tyranitar.

Example Scenario: You have a level 50 Larvitar with the following stats: HP 115, Attack 95, Defense 70, Special Attack 50, Special Defense 55, Speed 50. Its nature is Adamant (+Attack, -Special Attack). You know its IVs are 31 in Attack, 31 in Speed, and 20 in HP, but you are unsure of the others. You have not trained it in EVs yet, so all EVs are 0.

Let’s calculate the Attack base stat manually. Step 1: Nature adjustment. Adamant boosts Attack by 10%, so divide the current Attack (95) by 1.1 = 86.36. Step 2: Subtract 5 (for non-HP stats) = 81.36. Step 3: Multiply by (100 ÷ Level), which is 100 ÷ 50 = 2. So 81.36 × 2 = 162.72. Step 4: Subtract IV (31) and EV/4 (0) = 131.72. Step 5: Divide by 2 = 65.86. Rounded to the nearest whole number, that is 66. The known base Attack for Larvitar is 64. The slight discrepancy (66 vs 64) arises because the calculator assumes the IVs and EVs you provided, but the actual IV in Attack is 31—the formula yields 66 due to rounding in the game’s internal stat calculation (the game rounds down after each multiplication step). The calculator accounts for this by iterating possible base stat values and finding the best fit, outputting 64 as the correct base Attack. For HP: Current HP 115, subtract level (50) and 10 = 55. Multiply by 2 = 110. Subtract IV (20) and EV/4 (0) = 90. Divide by 2 = 45. Base HP for Larvitar is 50. The calculator would return 50, showing that the HP IV might actually be higher than 20, or the HP stat was misread. This demonstrates how the tool can also help identify incorrect IV assumptions.

The result tells you that this Larvitar has exactly the expected base stats for its species, confirming it is a normal specimen. If the calculator returned a base stat wildly different (e.g., base Attack of 80 for Larvitar), that would indicate an error in your input—perhaps the nature is wrong or the IVs are different.

Another Example

Consider a level 100 Garchomp with max IVs (31 in all stats) and 252 EVs in Attack and Speed, with 4 EVs in HP. Its nature is Jolly (+Speed, -Special Attack). Its stats are: HP 331, Attack 394, Defense 193, Special Attack 166, Special Defense 183, Speed 333. Using the calculator, input level 100, IVs 31, EVs 252/0/0/0/0/252 (for Attack and Speed), and Jolly nature. For Speed: Current Speed 333, divide by 1.1 (Jolly boost) = 302.73. Subtract 5 = 297.73. Multiply by (100÷100)=1, so 297.73. Subtract IV 31 = 266.73. Subtract (252÷4)=63 = 203.73. Divide by 2 = 101.86, rounds to 102. The base Speed of Garchomp is 102. The calculator confirms this exactly. For Attack: Current Attack 394, nature is neutral for Attack (Jolly only affects Speed and Sp.Atk), so no division. Subtract 5 = 389. Subtract IV 31 = 358. Subtract (252÷4)=63 = 295. Divide by 2 = 147.5, rounds to 148. Base Attack of Garchomp is 130. Wait—148 is not 130. This discrepancy shows that the calculator must account for the fact that Garchomp’s base Attack is 130, but with 252 EVs and 31 IVs at level 100, the formula yields 148? Let’s recalculate properly: The formula is ((((Stat ÷ Nature) - 5) × 100 ÷ Level) - IV - (EV÷4)) ÷ 2. For Garchomp Attack at level 100: ((394 - 5) - 31 - 63) ÷ 2 = (389 - 31 - 63) ÷ 2 = 295 ÷ 2 = 147.5, rounds to 148. But actual base Attack is 130. This means the calculator would detect an inconsistency—likely the EVs are not exactly 252, or the IV is not 31. In reality, with 31 IV and 252 EVs, the stat should be 394? Let’s verify forward: ((2×130 + 31 + 63) × 100 ÷ 100) + 5 = (260+31+63) + 5 = 354 + 5 = 359. With nature neutral, Attack should be 359, not 394. So the example stats are incorrect. A correct Garchomp with 31 IVs and 252 EVs in Attack at level 100 has 359 Attack. The calculator would correctly output base 130 when given the correct stat of 359. This example highlights the importance of accurate input—the tool is only as reliable as the data you provide.

Benefits of Using Pokemon Base Stat Calculator

Utilizing a dedicated base stat calculator transforms how you interact with Pokémon stat data, offering clarity and precision that manual calculations cannot match. Here are the key advantages of using this free tool for your training and competitive needs.

  • Instant Species Comparison: With a single calculation, you can compare the base stat totals of multiple Pokémon without memorizing numbers or flipping through online databases. For example, you can quickly verify that Garchomp has a BST of 600 while Dragonite has 600 as well, but their distribution differs (Garchomp favors Attack and Speed, Dragonite favors balanced stats). This speeds up team building by letting you focus on stat spreads that fit your strategy.
  • EV Training Verification: After spending hours EV training a Pokémon, you can use the calculator to confirm that your efforts are paying off correctly. By inputting the current stats and known base values, the tool can back-calculate the approximate EVs. If the calculator shows a base stat that deviates from the known value, it signals that your EV distribution may be off or that you accidentally gained unwanted EVs from wild encounters.
  • Breeding Quality Assessment: Breeders can use the calculator to evaluate hatchlings without needing to level them up fully. A level 1 Pokémon’s stats are very low, but the calculator can still estimate base stats if IVs are known. This allows you to identify which offspring have the ideal base stat spread for competitive play, saving hours of unnecessary leveling and EV training on inferior specimens.
  • Error Detection in Input Data: The calculator acts as a sanity check. If you misread a stat, selected the wrong nature, or entered an incorrect level, the calculated base stat will likely fall outside the known range for that species (e.g., a base stat above 255 or below 1). This immediate feedback helps you catch mistakes before they affect your strategic decisions.
  • Educational Tool for New Players: For trainers learning how stats work, the calculator provides a hands-on way to see the relationship between base stats, IVs, EVs, level, and nature. By changing one variable (like increasing IVs from 0 to 31) and observing the change in calculated base stat, users gain intuitive understanding of the game mechanics without needing to memorize formulas.

Tips and Tricks for Best Results

To maximize the accuracy and usefulness of your calculations, follow these expert tips derived from competitive Pokémon communities and data analysis. Even small errors in input can lead to misleading results, so attention to detail is paramount.

Pro Tips