Pokémon Go Evolution Calculator

Find out with this tool how strong your evolved Pokémon will be based on the current Pokémon's stats.

Select Pokémon

Enter your Pokémon's current CP

Calculate »

Every trainer has had this happen: you spend a pile of candy evolving a Pokémon, only to end up with something too weak for raids or useless for PvP. I once invested 400 Candy into a low-IV Magikarp, and the Gyarados I got couldn’t even break 2,000 CP. That’s where the Pokémon Go evolution calculator comes in as a valuable source, and that’s exactly why we felt the need to build this amazing tool for all Pokémon fans like me.

This tool removes the guesswork by showing you how strong your Pokémon will be after evolving. It’s not a rough guess — it mirrors Niantic’s in-game mechanics. That means the CP predictions you see are the same calculations the game uses. With it, you can plan your Stardust, Candy, and team-building around data instead of chance.

In this guide, I’ll show you how the calculator works, how to use it step by step, and how to apply it to real situations like raid prep, PvP leagues, and mega evolutions.

How Does Pokémon Go Evolution Calculator Work

Pokémon Go CP (Combat Power) is evaluated by three hidden stats called IVs (Attack, Defense, and Stamina), combined with your Pokémon’s level. The calculator takes your creature’s current CP and does the math using the official formula:

• CP = (Attack × √Defense × √Stamina × CP Multiplier²) ÷ 10

Two Pokémon with the same Combat Power don’t always evolve the same way. A Magikarp at 400 CP with perfect IVs can turn into a much stronger Gyarados than another 400 CP Magikarp with poor IVs.

The calculator checks your Pokémon against thousands of possible IV/level combinations. Instead of telling you a single number, it gives:

• An estimated CP (most likely outcome)
• A range of possible CPs (to account for hidden IVs)
• The maximum possible CP if your Pokémon had top stats

How to Use Pokémon Go Evolution Calculator

1. Search your Pokémon – works for everything in Pokémon Go, including regional exclusives, raid bosses, and Community Day species.
2. Enter the CP – any number from 10 to 5000.
3. Check the results – you’ll see:
   • Estimated evolved CP
   • CP range (with confidence interval)
   • Max possible CP outcome
   • Exact Candy requirements for that evolution

For Pokémon with multiple possible evolutions, like Eevee, you’ll see each branch. For example, a 600 CP Eevee could evolve into a Vaporeon in the 1600–2000 CP range or a Jolteon in the 1500–1800 CP range, depending on its IVs.

Trainer Tip: If you’ve caught multiple of the same critter, enter each into the calculator before evolving. That way, you’ll know which one gives you the best return on resources investment.

CP and HP Predictions Explained

Combat Power hides a lot under the hood, it is calculated from your Pokémon’s base stats, level, and IVs. That’s why two Pokémon with the same CP today can evolve into completely different powerhouses tomorrow.

Here’s the key:

• Individual Value spreads (Attack, Defense, Stamina values between 0–15) drastically change how strong evolutions turn out.
• The tool accounts for this by giving a prediction range.

For example, two Machops at 800 CP:

• Machop A with 15 Attack IV could evolve into a Machamp that reaches raid breakpoints fast.
• Machop B with low Attack IV might end up weaker even if its CP is the same before the transform.

The calculator also includes HP predictions. HP comes directly from the Stamina IV, which matters for tanky Pokémon in PvP. A high-Stamina Azumarill may not top CP charts, but it survives much longer in Great League battles.

Always look at both CP and HP predictions. The strength value shows offensive power, HP highlights durability. The best competitive Pokémon often strike a balance between the two.

How to Maximize Stardust & Improve Gameplay

Raids

Before spending Rare Candy or Stardust, check if your Pokémon will hit useful breakpoints after evolving. For example, evolving a Machop into a Machamp that hits the “one less Fast Move” breakpoint against Dialga can save huge resources.

PvP Leagues

Great League (1500 CP) and Ultra League (2500 CP) have hard caps. The calculator shows whether evolving will push your creature just under or just over these thresholds. An Umbreon that evolves to 1498 CP is perfect for Great League — but one that receives 1501 CP is useless there.

Resource Management

If you caught 10 Ralts, the tool helps you compare each one. You’ll see which evolves into the strongest Gallade or Gardevoir. This prevents waste and ensures your best investment.

Team Planning

Many communities like Discord, Silph Road, and PvPoke rely on calculators for team building. Sharing predictions lets trainers coordinate raid counters and PvP teams without blind guesses.

Mega Evolution and Battle Calculations

The evolution Pokémon Go calculator also covers mega evolutions, and this is where it saves many resources long term.

When you evolve into a mega form, the tool shows:

• Mega energy requirements
• Standard Candy costs
• CP predictions including Buddy bonuses

Mega evolutions are temporary, so planning which base Pokémon to evolve now prevents wasted Candy and mega energy later. For example, if you evolve your strongest IV Gengar today, it’ll ensure your future Mega Gengar dominates raid damage charts.

Trainer Strategy: Think long-term. If you have multiple candidates, use the calculator to decide which shifts gives you the best mega potential. This keeps your Candy and Stardust reserved for Pokémon that will be relevant for raids and PvP seasons.

Frequently Asked Questions

How does the calculator evaluate exact CP?

It reflects the multiplier system built in-game. Results appear the same as in-game mechanics, though shadow bonuses and weather effects are not included in the base calculation.

Can the Pokémon Go evolution calculator predict Shiny Pokémon CP?

Yes, the calculator finds CP for shiny Pokémon the same as a normal creature. The only difference you’ll see is a visual difference; there’s no extra hidden boost, but shinies give prestige in gyms, raids, and trades.

Does the tool consider weather boosts for CP predictions?

No, the calculator uses base CP calculation without weather modifiers. Weather boosts only affect Pokémon when caught during specific conditions, not their evolution potential. If you caught a weather boosted Pokémon, enter the actual current value for accurate estimates.

Can the evolution calculator predict CP for special event evolutions?

The calculator handles most special event evolutions that change base stats like Community Day exclusive moves. But it uses standard evolution multipliers. Some limited-time evolves with unique stat bonuses might not appear completely in the output.

Should I evolve before or after powering up?

Timing doesn’t change the final CP since stats multiply by fixed percentages. Though evolving first reveals movesets, which helps you decide if further investment is necessary.

Can I trust the Candy costs shown?

Candy requirements come directly from Pokémon Go’s database. Because Candy requirements sometimes change with updates, the calculator stays synced to the live database so you never plan with outdated info.

Why do some trainer catches show wider CP ranges?

Low CP Pokémon (like Magikarp or Ralts) can have more possible IV spreads at low levels, so predictions cover a wide range. High CP Pokémon (like raid catches) usually have narrower ranges since fewer IV/level combos are possible.