How To Calculate Pokemon Stats

Calculate your Pokémon’s exact stats including HP, Attack, Defense, Sp. Atk, Sp. Def, and Speed with IVs, EVs, nature, and level.

Comprehensive Guide: How to Calculate Pokémon Stats

Understanding how to calculate Pokémon stats is essential for competitive battling, breeding, and team building. This guide covers everything from base stats to IVs, EVs, natures, and how they all interact to determine your Pokémon’s final stats.

The Four Components of Pokémon Stats

Every Pokémon’s stat is calculated using four key components:

1. Base Stats – The inherent values assigned to each Pokémon species
2. Individual Values (IVs) – Hidden values that determine a Pokémon’s potential (0-31)
3. Effort Values (EVs) – Points gained through training that enhance specific stats (0-252 per stat, 510 total)
4. Nature – A trait that boosts one stat by 10% while reducing another by 10%

Stat Calculation Formulas

HP Calculation

The formula for calculating HP is unique:

HP = floor(floor((2 × BaseHP + IV + floor(EV/4)) × Level)/100) + Level + 10

Other Stats Calculation

For Attack, Defense, Sp. Atk, Sp. Def, and Speed:

Stat = floor(floor(floor((2 × BaseStat + IV + floor(EV/4)) × Level)/100 + 5) × Nature)

Understanding Base Stats

Base stats are the foundation of a Pokémon’s potential. Each species has fixed base values for each stat that determine their natural strengths and weaknesses. For example:

Pokémon	HP	Attack	Defense	Sp. Atk	Sp. Def	Speed	Total
Charizard	78	84	78	109	85	100	534
Blissey	255	10	10	75	135	55	540
Deoxys (Attack)	50	180	20	180	20	150	600

Individual Values (IVs) Explained

IVs are hidden values that range from 0 to 31 for each stat. They represent a Pokémon’s genetic potential:

• 0 IVs = Worst possible stat growth
• 31 IVs = Best possible stat growth
• IVs are determined when you encounter a Pokémon (wild, gift, or bred)
• Can be checked using IV calculators or in-game judges (from Gen 6 onward)

For example, a Pokémon with 31 IVs in Speed will always have higher Speed than the same Pokémon with 0 IVs, all other factors being equal.

Effort Values (EVs) and Training

EVs are points you earn through battles that determine which stats grow:

• Each Pokémon defeated gives specific EV yields
• Maximum 252 EVs per stat, 510 total across all stats
• 4 EVs = +1 stat point at level 100
• Can be trained using vitamins (e.g., HP Up, Protein) or battling specific Pokémon

Pokémon	HP	Atk	Def	Sp.Atk	Sp.Def	Spe	Total
Chansey	2	0	0	0	0	0	2
Machamp	0	3	0	0	0	0	3
Gengar	0	0	0	3	0	0	3

Nature’s Impact on Stats

Each nature increases one stat by 10% while decreasing another by 10%:

• Adamant: +Attack, -Sp. Atk
• Modest: +Sp. Atk, -Attack
• Timid: +Speed, -Attack
• Bold: +Defense, -Attack
• Calm: +Sp. Def, -Attack

Neutral natures (Hardy, Docile, etc.) don’t affect any stats.

Level’s Role in Stat Calculation

The level multiplier in stat formulas means:

• Stats increase as your Pokémon levels up
• The jump from level 99 to 100 is the same as from 1 to 2
• EVs become more valuable at higher levels

Practical Examples

Example 1: Level 50 Charizard

Base Stats: 78 HP / 84 Atk / 78 Def / 109 Sp.Atk / 85 Sp.Def / 100 Spe
IVs: 31 all
EVs: 252 Sp.Atk / 252 Spe
Nature: Timid (+Spe, -Atk)

Example 2: Level 100 Blissey

Base Stats: 255 HP / 10 Atk / 10 Def / 75 Sp.Atk / 135 Sp.Def / 55 Spe
IVs: 31 all
EVs: 252 HP / 252 Def
Nature: Bold (+Def, -Atk)

Advanced Concepts

Hidden Power Calculations

The type and power of Hidden Power depends on a Pokémon’s IVs through a complex formula involving binary representations of the IV values.

Stat Experience in Pokémon GO

Unlike main series games, Pokémon GO uses a different system with:

• Individual Values (0-15 instead of 0-31)
• CP (Combat Power) instead of separate stats
• Level caps based on trainer level

Common Mistakes to Avoid

1. Ignoring IVs when breeding competitive Pokémon
2. Wasting EVs on stats that won’t be used
3. Choosing the wrong nature for your Pokémon’s role
4. Forgetting to account for level when calculating stats
5. Overlooking base stat differences between similar Pokémon

Authoritative Resources

Bulbapedia: Stat Mechanics Smogon University: Competitive Guides Official Pokémon Rules and Resources