Pokemon GO CP Calculator
Calculate Pokemon GO evolution CP multipliers, appraisal IV percentages (0-15), Great League eligibility, and Stardust power up costs.
Pokemon GO Combat Power (CP), Evolution Multipliers & PvP IV Mechanics
In Niantic's Pokemon GO, a Pokemon's Combat Power (CP) is an aggregate score representing its battle effectiveness in Gyms, Raids, and the GO Battle League. Behind this single number lies a complex mathematical equation that combines the species' base stats (Attack, Defense, Stamina), hidden Individual Values (IVs ranging from 0 to 15), and a Level-dependent CP Multiplier (CPM).
When evolving a Pokemon (such as transforming Magikarp into Gyarados or Eevee into Vaporeon), its base stats increase dramatically, causing a proportional leap in CP. Predicting this post-evolution CP is critical for competitive trainers who need their evolved Pokemon to qualify for the Great League (CP capped at 1,500) or Ultra League (CP capped at 2,500) without accidentally overshooting the limit.
ToolQix's Pokemon GO CP Calculator accurately predicts evolution ranges across all major species, evaluates hidden IV appraisal percentages (0★ to 4★ Hundo), assesses PvP league eligibility, and computes exact Stardust and Candy XL costs for power-ups.
The Official Niantic CP Formula, Stat Product & CPM Coefficients
The official Pokemon GO CP formula is: CP = Floor((Attack * Sqrt(Defense) * Sqrt(Stamina) * CPM^2) / 10). Because Attack is weighted linearly while Defense and Stamina are under square roots, high Attack IVs inflate CP disproportionately. Consequently, in Great and Ultra Leagues with CP caps, Pokemon with low Attack and high Defense/Stamina (e.g. 0/15/15 IVs) achieve a significantly higher total 'stat product' and bulk than 100% IV Pokemon.
How to Use Pokemon GO CP Calculator Step-by-Step
1. Select Pokemon Evolutionary Line
Choose your base Pokemon (e.g. Magikarp, Eevee, Machop, Dratini, Larvitar) from the species selector.
2. Input Current Combat Power (CP)
Enter your wild or caught Pokemon's current CP value.
3. Adjust Appraisal IV Sliders (0–15)
Set the Attack, Defense, and Stamina bars based on your in-game team leader's appraisal screen.
4. Check Predicted Evolution CP & PvP Badges
Inspect the estimated evolved CP and verify whether it meets the Great League (≤1500) or Ultra League (≤2500) caps.
5. Calculate Stardust & Candy Power-Up Costs
Slide from current level to target level (up to Level 50 + Best Buddy) to tally total Stardust and Candy XL required.
Key Industry & Real-World Use Cases
GO Battle League PvP Eligibility Audits
Confirming that evolving a high-rank Swablu or Machop won't exceed 1,500 CP, saving valuable Candy and Stardust from being wasted.
Eevee Evolution CP Planning
Evaluating whether an Eevee will evolve into a Great League Umbreon or an Ultra League Sylveon.
400-Candy Evolution Verification
Ensuring a Magikarp or Wailmer is worth the massive 400-candy investment before committing to the evolution.
Level 50 Master League Resource Budgeting
Calculating the exact 296 Candy XL and 250,000+ Stardust needed to max out a Legendary raid attacker.
Best Practices & Operational Tips
- In CP-capped leagues (Great and Ultra), search for 0–2 Attack IVs and 14–15 Defense/Stamina IVs for maximum bulk.
- In Master League and Raids, where there is no CP cap, always aim for 15/15/15 (100% IV Hundo) stats.
- Always evolve your Pokemon before powering it up to inspect its fast and charged movesets without spending Stardust first.
- Remember that purifying a Shadow Pokemon adds +2 to every IV stat (Attack, Defense, Stamina) and immediately jumps the Pokemon to Level 25.
Pokemon GO Evolution CP Multipliers & League Thresholds
| Base Pokemon | Evolved Form | Average CP Multiplier | Optimal Pre-Evo CP for Great League | Candy Cost |
|---|---|---|---|---|
| Magikarp | Gyarados | 10.5x – 11.8x | Max ~135 CP | 400 Candy |
| Eevee | Vaporeon | 2.05x – 2.65x | Max ~580 CP | 25 Candy |
| Machop | Machamp (Stage 2) | 2.55x – 2.75x | Max ~550 CP | 125 Candy |
| Gastly | Gengar (Stage 2) | 2.60x – 2.90x | Max ~520 CP | 125 Candy |
| Dratini | Dragonite (Stage 2) | 3.60x – 3.85x | Max ~390 CP | 125 Candy |
| Larvitar | Tyranitar (Stage 2) | 3.40x – 3.75x | Max ~400 CP | 125 Candy |
| Swablu | Altaria | 1.85x – 2.15x | Max ~720 CP | 400 Candy |
| Ralts | Gardevoir (Stage 2) | 2.90x – 3.20x | Max ~470 CP | 125 Candy |
Frequently Asked Questions about Pokemon GO CP Calculator
Why are 0 Attack IVs better for Great League and Ultra League?
Because Attack is weighted twice as heavily in the CP formula as Defense and Stamina, having low Attack allows a Pokemon to level up multiple extra times while staying under 1,500 CP, granting substantially more total HP and defensive bulk.
Does powering up before evolving cost more Stardust?
No. Powering up costs the exact same amount of Stardust and Candy whether done before or after evolving. However, evolving first is recommended so you can inspect movesets before spending resources.
Verified Algorithm & Client-Side Sandbox
Tested: September 2026This utility operates 100% locally inside your browser with zero remote data transmission. Calculation and transformation logic adheres strictly to ISO/NIST, W3C, and central banking standards under our Editorial & Testing Policy.