Smogon Calculator

An advanced tool to calculate damage for competitive Pokémon battles.

Attacker

Defender

Modifiers

Calculation Results

What is a smogon calculator?

A smogon calculator is an essential tool for any serious competitive Pokémon player. It’s a specialized calculator that computes the amount of damage one Pokémon’s attack will do to another under a specific set of circumstances. Unlike a simple math calculator, a Smogon damage calculator accounts for the dozens of variables in the Pokémon damage formula, including stats, levels, abilities, items, weather, and type matchups. Using this tool helps players make informed strategic decisions, from building a team to choosing the right move in a critical turn of a battle.

Pokémon Damage Formula and Explanation

The core of any smogon calculator is the official Pokémon damage formula. While complex, it can be broken down into several parts. The fundamental calculation is as follows:

Damage = ((((2 * Level / 5 + 2) * Base Power * Attack / Defense) / 50) + 2) * Modifiers

Each component of the formula plays a crucial role in the final damage output.

Damage Formula Variables

Variable	Meaning	Unit	Typical Range
Level	The level of the attacking Pokémon.	(unitless)	1 – 100 (typically 50 or 100 in competitive)
Base Power	The intrinsic power of the attack being used.	(unitless)	10 – 250
Attack	The attacker’s relevant stat (Attack for physical, Sp. Atk for special).	(unitless)	5 – 500+
Defense	The defender’s relevant stat (Defense for physical, Sp. Def for special).	(unitless)	5 – 500+
Modifiers	A combined multiplier for all other factors (STAB, type effectiveness, items, etc.).	(multiplier)	0 – 8+

The “Modifiers” part includes factors like STAB (a 1.5x boost if the move’s type matches the user’s type), type effectiveness (from 0x to 4x), critical hits (typically 1.5x), and effects from items or abilities. A skilled player uses a Pokémon team builder to optimize these variables.

Practical Examples

Example 1: Strong Attacker vs. Bulky Defender

Imagine a Level 100 Garchomp (high Attack) using its signature move against a Level 100 Ferrothorn (high Defense). We want to see if a super-effective Fire Fang is a better choice than a STAB-boosted Outrage.

• Inputs (Fire Fang): Attack Stat: 394, Move Power: 65, Defender Defense: 357, Type Effectiveness: 2x (Super Effective), STAB: No.
• Results: The smogon calculator would show significant, but likely not a one-hit KO, damage.
• Inputs (Outrage): Attack Stat: 394, Move Power: 120, Defender Defense: 357, Type Effectiveness: 0.5x (Not Very Effective), STAB: Yes.
• Results: Even with STAB, the damage would be greatly reduced due to the resistance. This shows why checking calcs is vital.

Example 2: Special Attacker vs. Special Wall

Consider a Level 100 Latios (high Special Attack) with the move Draco Meteor against a Level 100 Chansey (extremely high HP and Special Defense).

• Inputs: Sp. Atk Stat: 394, Move Power: 130, Defender Sp. Def: 339, Defender HP: 704, STAB: Yes, Type Effectiveness: 1x.
• Results: The calculator would predict a large amount of damage, but due to Chansey’s massive HP pool, it would almost certainly not be a one-hit KO. This is a classic example of why understanding EV training guide principles is important to secure key knockouts.

How to Use This smogon calculator

Using this calculator is a straightforward process designed to give you quick and accurate results.

1. Enter Attacker’s Details: Input the attacking Pokémon’s Level, its relevant attacking stat (Attack or Special Attack), and the Base Power of the move it is using.
2. Enter Defender’s Details: Input the defending Pokémon’s Level, its relevant defensive stat (Defense or Special Defense), and its total HP.
3. Set Modifiers: Use the dropdown and checkboxes to apply situational modifiers. Select the correct type effectiveness, and check the boxes for STAB or a critical hit if they apply.
4. Calculate and Interpret: Click the “Calculate Damage” button. The results will show the damage range (from the lowest possible roll to the highest) and the corresponding percentage of the defender’s total health. This helps you understand the likelihood of a 1-hit, 2-hit, or 3-hit KO.

Key Factors That Affect Damage Output

• Base Stats: The foundation of any Pokémon’s power. A high attacking stat is the primary driver of damage.
• EVs, IVs, and Natures: These hidden values fine-tune a Pokémon’s stats, and competitive players use them to maximize power or survivability. Consulting a guide to natures can be very helpful.
• Items: Items like Choice Band, Choice Specs, and Life Orb provide substantial boosts to damage output.
• Abilities: Many abilities, such as Guts, Huge Power, or Solar Power, can drastically alter damage calculations.
• STAB (Same-Type Attack Bonus): A fundamental mechanic that gives a 50% power boost to moves that match one of the user’s types.
• Type Matchups: The single most important multiplier, determining if a move is super effective, not very effective, or has no effect at all. Knowing your Pokémon type matchups is critical.

FAQ

Why is there a damage range and not one number?

The Pokémon games include a random factor in the damage formula, causing damage to vary by up to 15%. A hit will deal between 85% and 100% of its maximum potential damage.

What is a “KO chance”?

This is the probability of knocking out an opponent in a certain number of hits (e.g., OHKO for one hit, 2HKO for two hits). The smogon calculator helps determine this by comparing damage to the defender’s HP.

How do critical hits work?

In modern generations, a critical hit multiplies the final damage by 1.5x. It also importantly ignores negative stat changes on the attacker and positive stat changes on the defender.

Does this calculator work for doubles battles?

This is a simplified calculator. Official doubles battles introduce more complexity, like the “spread move” damage reduction (moves that hit multiple targets have their power reduced). For those scenarios, a more advanced VGC damage calculator is recommended.

What’s the difference between physical and special attacks?

Physical attacks use the Attack and Defense stats, while Special attacks use the Special Attack and Special Defense stats. The category of the move determines which stats are used.

Is Level 100 or Level 50 used?

It depends on the format. Smogon singles formats primarily use Level 100, while official formats like VGC use Level 50. This calculator lets you set the level for accurate results.

How important is a smogon calculator for getting good at competitive Pokémon?

It’s extremely important. While experienced players develop an intuition for damage ranges, using a calculator removes guesswork and allows for precise team optimization and in-battle decision-making.

Where can I find stats for Pokémon?

Websites like Smogon’s own strategy pokedex, Serebii, or Bulbapedia are excellent resources for finding base stats, movepools, and abilities for every Pokémon.

Related Tools and Internal Resources

To become a master of competitive Pokémon battling, you need more than just a damage calculator. Explore these resources to round out your skills: