Erratic (e.g., Milotic, Nincada)
Fast (e.g., Jigglypuff, Clefairy)
Medium Fast (e.g., Pidgey, Rattata)
Medium Slow (Starters, Mew, Gengar)
Slow (Legendaries, Dragonite)
Fluctuating (e.g., Breloom, Swalot)
Calculation Results
Current Total EXP:0
Target Total EXP:0
EXP Needed:0
Rare Candies Needed:0
How Pokemon Experience Works
In the Pokemon games, the amount of Experience Points (EXP) required to reach level 100 varies significantly depending on the Pokemon species. This determines whether a Pokemon is easy to train or requires a significant grind. There are 6 distinct Experience Groups:
Erratic: The hardest group to calculate. Requires less EXP at high levels but more at low levels. Max EXP: 600,000.
Fast: The easiest group to train. Requires very little EXP to reach level 100. Max EXP: 800,000.
Medium Fast: Standard growth rate for many common Pokemon. Max EXP: 1,000,000.
Medium Slow: The most common group, including almost all Starter Pokemon (Bulbasaur, Charmander, Squirtle, etc.). Max EXP: 1,059,860.
Slow: Generally reserved for powerful pseudo-legendaries (Dragonite, Tyranitar) and Legendaries (Mewtwo, Lugia). Max EXP: 1,250,000.
Fluctuating: Grows slowly early on, then very fast, then slow again. Max EXP: 1,640,000.
How to Use This Calculator
Enter Current Level: Input the level your Pokemon is currently at (1-99).
Enter Target Level: Input the level you wish to reach (usually an evolution level or level 100).
Select EXP Group: Choose the growth rate of your Pokemon. If you are unsure, "Medium Slow" is the safest bet for Starter Pokemon, while "Slow" is common for Dragons and Legendaries.
Calculate: Click the button to see the exact numeric EXP difference required.
Training Tips
To speed up the leveling process, consider using the Lucky Egg item, which boosts EXP gain by 50%. Additionally, Pokemon traded from other games (Traded ID) receive a 1.5x multiplier to EXP gained in battle.
function calculatePokemonExp() {
// 1. Get Input Values
var currentLvlInput = document.getElementById("pkmnLevelCurrent");
var targetLvlInput = document.getElementById("pkmnLevelTarget");
var groupSelect = document.getElementById("pkmnExpGroup");
var currentLvl = parseInt(currentLvlInput.value);
var targetLvl = parseInt(targetLvlInput.value);
var group = groupSelect.value;
// 2. Validate Inputs
if (isNaN(currentLvl) || isNaN(targetLvl)) {
alert("Please enter valid numbers for levels.");
return;
}
if (currentLvl 100) targetLvl = 100;
if (currentLvl >= targetLvl) {
alert("Target Level must be higher than Current Level.");
return;
}
// 3. Define Calculation Function based on Gen 3+ Formulas
function getExpAtLevel(n, type) {
if (n <= 1) return 0;
var exp = 0;
if (type === "erratic") {
// Erratic: Piecewise function
if (n = 50 && n = 68 && n < 98) {
var floorPart = Math.floor((1911 – 10 * n) / 3);
exp = (Math.pow(n, 3) * floorPart) / 500;
} else {
exp = (Math.pow(n, 3) * (160 – n)) / 100;
}
}
else if (type === "fast") {
// Fast: 4n^3 / 5
exp = (4 * Math.pow(n, 3)) / 5;
}
else if (type === "medium_fast") {
// Medium Fast: n^3
exp = Math.pow(n, 3);
}
else if (type === "medium_slow") {
// Medium Slow: 1.2n^3 – 15n^2 + 100n – 140
exp = (1.2 * Math.pow(n, 3)) – (15 * Math.pow(n, 2)) + (100 * n) – 140;
}
else if (type === "slow") {
// Slow: 5n^3 / 4
exp = (5 * Math.pow(n, 3)) / 4;
}
else if (type === "fluctuating") {
// Fluctuating: Piecewise function
if (n = 15 && n < 36) {
exp = Math.pow(n, 3) * ((n + 14) / 50);
} else {
var term = Math.floor(n / 2) + 32;
exp = Math.pow(n, 3) * (term / 50);
}
}
return Math.floor(exp);
}
// 4. Perform Calculations
var startExp = getExpAtLevel(currentLvl, group);
var endExp = getExpAtLevel(targetLvl, group);
// Safety check for negative values (rare edge case in old gens, good practice)
if (startExp < 0) startExp = 0;
if (endExp < 0) endExp = 0;
var neededExp = endExp – startExp;
var rareCandies = targetLvl – currentLvl;
// 5. Update UI
document.getElementById("resCurrentExp").innerText = startExp.toLocaleString();
document.getElementById("resTargetExp").innerText = endExp.toLocaleString();
document.getElementById("resNeededExp").innerText = neededExp.toLocaleString();
document.getElementById("resRareCandies").innerText = rareCandies + " Items";
document.getElementById("pkmn-result").style.display = "block";
}