Pokemon Fire Red Damage Calculator

Calculator Inputs

Attacker Name

Defender Name

Move Name

Move Category

Attacker Level

Move Power

Attack or Sp. Atk Stat

Defense or Sp. Def Stat

Attack Stage

Defense Stage

Defender Current HP

Defender Max HP

Same Type Bonus

Type Effectiveness

Weather Modifier

Critical Hit

Burn Modifier

Screen Modifier

Target Modifier

Other Modifier

Formula Used

The calculator starts with the Generation III style base damage formula:

Base Damage = floor(floor(floor(((2 × Level ÷ 5 + 2) × Power × Attack ÷ Defense)) ÷ 50) + 2)

Then it applies target, weather, critical, random roll, same type bonus, type effectiveness, burn, screen, and other modifiers. Rolls use whole random values from 85 through 100.

How to Use This Calculator

Enter the attacker and defender names for record keeping. Add the move name, level, move power, attacking stat, defending stat, and defender HP. Choose battle modifiers that match the situation. Press Calculate Damage to view the range above the form. Use CSV or PDF buttons to export the same calculation.

Example Data Table

Attacker	Defender	Move	Level	Power	Attack Stat	Defense Stat	STAB	Type
Charizard	Venusaur	Flamethrower	50	95	120	100	1.5x	2x
Blastoise	Rhydon	Surf	52	95	125	80	1.5x	4x
Pikachu	Gyarados	Thunderbolt	45	95	105	90	1.5x	4x

About This Battle Damage Tool

This calculator helps players study damage in Pokemon Fire Red with clear battle numbers. It focuses on the main Generation III damage pattern. You can enter a level, move power, attack value, defense value, HP, and common battle modifiers. The result shows the smallest roll, largest roll, average roll, HP percentage loss, and knockout chance. It also lists every random roll from 85 to 100. This makes planning easier before a gym fight, rival fight, Elite Four run, or challenge route.

Why Damage Ranges Matter

FireRed damage is not a single fixed number. Most damaging moves use a random multiplier. The roll can change a safe knockout into a risky one. A strong move may still miss a one hit knockout when the low roll appears. A weaker move may become enough after STAB, sunny weather, rain, type advantage, or a critical hit. Viewing all rolls helps you choose safer plays. It also helps compare moves with similar power.

Advanced Inputs

The form uses direct battle stats. These should be the effective stats shown or calculated for the fight. You can also set attack and defense stages. The calculator applies stage multipliers before damage. Critical hits ignore negative attacking stages and positive defensive stages, which matches common Generation III behavior. Burn can reduce physical damage when the attacker does not bypass the burn penalty. Screen support can be added for normal hits. Extra modifier lets you model held items, abilities, field effects, or custom rules.

Statistics View

The statistics section gives a quick range summary. It shows low roll, high roll, average damage, percent loss, and knockout odds. These numbers make random variation visible, so a trainer can judge battle risk before choosing moves.

Practical Planning

Use the output as a guide, not as a full battle simulator. FireRed also includes accuracy, status, switching, move effects, immunities, and AI decisions. The calculator focuses on direct damage only. That narrower scope keeps the tool quick and readable. For serious planning, test several scenarios. Check neutral damage first. Then compare type advantage, STAB, weather, and critical results. Save the CSV for spreadsheets. Save the PDF for quick sharing. Good damage planning reduces surprises and improves team decisions.

FAQs

What does this damage calculator estimate?

It estimates direct move damage for Pokemon Fire Red style battles. It shows all 16 random rolls, damage range, HP loss, average damage, knockout chance, and hits needed to knock out the defender.

Why are there 16 damage rolls?

Generation III damage uses random values from 85 through 100. Each whole value can create a different result. Showing all rolls helps you understand low, middle, and high damage outcomes.

Should I enter Attack or Special Attack?

Enter the stat used by the move. In Fire Red, move type decides whether a move is physical or special. Use Attack for physical moves and Special Attack for special moves.

What does type effectiveness mean?

Type effectiveness is the matchup multiplier. Use 0x for immunity, 0.5x for resistance, 1x for neutral damage, 2x for weakness, and 4x for double weakness.

How does STAB affect the result?

STAB means same type attack bonus. Choose 1.5x when the move type matches one of the attacker's types. Choose 1x when there is no match.

Does the critical hit option change stat stages?

Yes. The calculator ignores negative attacking stages and positive defensive stages when critical hit is selected. It also ignores the screen modifier for that critical calculation.

Can I model items or abilities?

Yes. Use the other modifier field. Enter a multiplier such as 1.1, 1.2, 1.3, or 1.5. This lets you test custom boosts or reductions.

Are CSV and PDF exports included?

Yes. Enter your values and press the CSV or PDF button. The exported file includes the inputs, summary values, damage rolls, HP percentages, and knockout result.