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Pokémon Breeding IV Calculator

Predict the IV outcomes for your bred Pokémon. Calculate the probability of perfect 5IV and 6IV hatches when using the Destiny Knot, Power Items, and high-IV parents like 6IV Dittos.

Interpreting Your Result

Competitive Ready (S): 5IVs in the correct categories. God Tier (A): 6IVs. Work in Progress (B): 4IVs. Breeding Fodder (C): Under 4IVs. Use this tool to decide when to swap a child Pokémon with a parent to improve the breeding pool.

✓ Do's

  • Always have your high-IV parent (usually a 6IV Ditto) hold the Destiny Knot.
  • Replace your "Mother/Father" Pokémon in the daycare as soon as you hatch a child with better IVs.
  • Aim for 5IVs rather than 6IVs for most Pokémon; it saves a massive amount of time with zero impact on performance.
  • Use a "0 Speed" parent if you are building a dedicated Trick Room team.

✗ Don'ts

  • Don't start breeding with low-IV parents; catch a high-IV Ditto from a Raid or trade for one first.
  • Don't forget the Everstone! A 6IV Pokémon with the wrong Nature is often worse than a 4IV Pokémon with the right one.
  • Don't ignore the "Fantastic" (30 IV) rating; for some level-50 formats, a 30 is functionally identical to a 31.
  • Don't waste time breeding for perfect stats on a Pokémon that can just be "Bottle Capped" (unless you want the stats to be inheritable).

How It Works

The Pokémon Breeding IV Calculator is the ultimate tool for competitive trainers and perfect-stat seekers. In the world of Pokémon, Individual Values (IVs) determine a Pokémon’s potential in battle. Breeding is the only way to "guarantee" consistent high stats. This calculator simulates the inheritance of IVs from parents, accounting for the RNG of the remaining stats to give you the exact percentage chance of hatching a masterpiece.

Formula Used

Inherited Stats = 3 (Base) or 5 (Destiny Knot). Odds of a 6IV = 1/32 if both parents are 6IV and holding Destiny Knot. If one parent is 5IV, odds are 1/64.

Real Calculation Examples

  • 1Two 6IV parents with a Destiny Knot have a 1 in 32 (3.1%) chance of producing a 6IV offspring.
  • 2Two 6IV parents with a Destiny Knot have a 100% chance of producing a 5IV offspring (though the 5th stat might be in an undesired category like Sp.Atk for a physical attacker).
  • 3Breeding a 6IV Ditto with a 4IV Pokémon results in a ~1.5% chance of a perfect 5IV Pokémon with the correct stat missing.

Related Calculators

The Comprehensive Guide

Pokémon Breeding IV Calculator: The Science of Perfect Stats

In the competitive Pokémon landscape, the difference between victory and defeat often comes down to a single point in Speed or HP. These points are determined by Individual Values (IVs). While you can find Pokémon with decent stats in the wild, the only way to consistently produce "Perfect" 6IV or 5IV monsters is through the complex science of breeding. The Pokémon Breeding IV Calculator is your laboratory tool for project success.

What are IVs? Understanding the DNA of Pokémon

Every Pokémon has six core stats: HP, Attack, Defense, Special Attack, Special Defense, and Speed. For each of these stats, every individual Pokémon has a hidden value from 0 to 31. A value of 31 is known as "Best" or "Perfect," while 0 is "No Good." At level 100, a Pokémon with a 31 IV will have 31 more points in that stat than one with a 0 IV (before accounting for Natures and EVs).

The Importance of 31 (Best)

Competitive play is built on "Benchmarks." If two Pokémon move on the same turn, the one with the higher Speed stat goes first. If both have the same base speed, but yours has a 30 IV and theirs has a 31, you will *always* go second. This makes perfect IVs mandatory for high-level play.

The Core Inheritance Rule

By default, an egg inherits 3 IVs from its two parents combined. The remaining 3 stats are generated randomly. This is why wild breeding is so slow.

The Game Changer: The Destiny Knot

The Destiny Knot is the single most important item rewarded to breeders. When one parent holds the Destiny Knot, the offspring inherits 5 IVs from the parents. Only 1 stat remains purely random. This reduces the RNG from a "1 in millions" gamble to a predictable statistical process.

Parent A Parent B Item Odds of 5IV (Perfect) Odds of 6IV
6IV6IVDestiny Knot100% (Any 5)1 in 32
6IV5IVDestiny Knot~18%1 in 64
5IV5IVDestiny Knot~9%1 in 128
6IVRandomNone< 0.1%Miniscule

The Power of the 6IV Ditto

Because IVs are inherited from parents, the best shortcut is to have one parent that is always perfect. Ditto can breed with any Pokémon (except Legendaries). A 6IV Ditto allows you to start any breeding project at a "5IV Inheritance" level immediately. The Pokémon Breeding IV Calculator emphasizes the use of Ditto because it eliminates the need to catch high-IV versions of every single species you want to train.

Specific Breeding: The "0 Speed" and "0 Attack" Niche

While "31" is usually the goal, sometimes "0" is better.

  • 0 Speed: Used for Trick Room teams. In Trick Room, the slowest Pokémon moves first. Having a 0 IV (and a negative speed nature) makes your Pokémon as fast as possible in this environment.
  • 0 Attack: Used for Special Attackers. Damage from the moves Foul Play and Confusion is calculated based on your own Attack stat. By having a 0 Attack IV, you take the minimum possible damage.
Our calculator helps you track "Negative Inheritance"—guaranteeing that the 0 is passed down rather than a random number.

Everstone vs. Destiny Knot: The Balancing Act

In most breeding setups, you have two key items:

  1. The Everstone: Given to the parent with the correct Nature (e.g., Jolly for Speed, Modest for Sp.Atk). This eliminates the 1/25 RNG of natures.
  2. The Destiny Knot: Given to the parent with the best IVs.
Without the Everstone, a 6IV Pokémon might end up with a "Brave" nature (+Atk, -Spe), which ruins its viability as a fast sweeper. Breeding is a dual-track process of managing both Genetics (IVs) and Personality (Nature).

How to Use the Iterative Breeding Method

You don't need perfect parents to start. Success with the Pokémon Breeding IV Calculator often follows an iterative loop:

  1. Breed your favorite Pokémon with a 6IV Ditto.
  2. Hatch 10 eggs. Check their IVs.
  3. If one of the children has better stats than the original parent (e.g., it has 3 perfect stats instead of 2), swap it into the Daycare.
  4. Repeat this process. As the parent stats improve, the probability of a 5IV/6IV offspring spikes exponentially.

The Mathematical Reality of the 6th Stat

Even with two 6IV parents and a Destiny Knot, the game only inherits 5 stats. The 6th stat is always rolled randomly on a scale of 0 to 31. This is why 6IV Pokémon are so rare—there is only a 1/32 chance that the un-inherited stat randomly lands on a perfect 31. For most players, a 5IV Pokémon is perfectly sufficient. If you are a physical attacker, the Special Attack stat is effectively meaningless. Our calculator will tell you when "Good is Great Enough."

Hidden Abilities: The Final Hurdle

IVs are only part of the story. Many Pokémon require their "Hidden Ability" (HA) to be viable.

  • If the female parent (or the non-Ditto parent) has the HA, there is a 60% chance the child will inherit it.
  • If the parent does *not* have the HA, the child can *never* inherit it naturally.
This creates a "Success Multiplier." Even if your 5IV odds are 20%, your "5IV + HA" odds are 20% * 60% = 12%.

Conclusion: Design Your Victor

Breeding is the intersection of strategy and persistence. By using the Pokémon Breeding IV Calculator, you take control of your team’s destiny. No more wandering into the tall grass hoping for a miracle—become the architect of your own championship team. Master the items, understand the logic of inheritance, and build the perfect Pokémon today!

Frequently Asked Questions

Usage of This Calculator

Who Should Use This?

Competitive VGC and Smogon players, "Perfect" collection enthusiasts, and anyone looking to optimize their battle tower teams.

Limitations

Does not account for "Hyper Training" (Bottle Caps), which changes the stat to act like a 31 but does not change the actual genetic IV for breeding. Only applies to breeding-capable Pokémon (no Legendaries or Paradox Pokémon).

Real-World Examples

The Competitive Garchomp

Scenario: A player has a 6IV Ditto and a 5IV Garchomp (Missing Sp.Atk). They use a Destiny Knot.

Outcome: The calculator shows a ~15.6% chance for a child to also be a perfect 5IV (Missing Sp.Atk). The player realizes they will likely get their target in just 10-20 eggs.

The Trick Room Sweeper

Scenario: A player needs a 0 Speed Ursaluna. They have a 0 Speed parent.

Outcome: The calculator highlights that using a Power Anklet on the 0 Speed parent guarantees the inheritance, making it much more efficient than a Destiny Knot gamble.

Summary

Turn the "Black Box" of Pokémon genetics into a predictable science. The Pokémon Breeding IV Calculator helps you map out your inheritance paths and achieve perfection in record time.