Track your progress toward 300 draws in Granblue Fantasy.
Spark Status
Total Draws Available0
Pulls Remaining300
Crystals Required90,000
0% Complete
How to Use the GBF Spark Calculator
In Granblue Fantasy, "sparking" is the process of performing 300 draws on a single gacha banner to trade for a specific featured character or weapon. This Spark Calculator helps you track your current savings in Crystals, Single Tickets, and 10-Draw Tickets to see exactly how close you are to that 300-draw milestone.
Calculation Logic
The math behind a spark is straightforward but requires converting various resources into their draw equivalents:
Crystals: Divided by 300 (the cost of a single draw).
1-Draw Tickets: Counted as 1 draw each.
10-Draw Tickets: Counted as 10 draws each.
Current Sparks: Any draws already performed on the active banner.
Sparking Strategy and Tips
For most players, it is highly recommended to only spark during Flash Gala (mid-month) or Premium Gala (Legfest, end of month). These banners have a 6% SSR rate compared to the standard 3%, effectively doubling your chances of pulling high-tier characters while you work toward your spark choice.
Example Calculation
If you have the following resources:
Crystals: 60,000 (equals 200 draws)
Single Tickets: 20 (equals 20 draws)
10-Draw Tickets: 3 (equals 30 draws)
Your total would be 250 draws. The calculator will show you that you need 50 more draws, or 15,000 additional crystals, to reach a full spark.
function calculateSpark() {
var crystalVal = document.getElementById('crystal_count').value;
var singleVal = document.getElementById('single_tickets').value;
var tenVal = document.getElementById('ten_tickets').value;
var currentVal = document.getElementById('current_sparks').value;
var crystals = parseFloat(crystalVal) || 0;
var singles = parseFloat(singleVal) || 0;
var tens = parseFloat(tenVal) || 0;
var active = parseFloat(currentVal) || 0;
// Logic: 300 crystals per draw
var drawFromCrystals = Math.floor(crystals / 300);
var drawFromTens = tens * 10;
var totalAvailableDraws = drawFromCrystals + singles + drawFromTens + active;
var remainingDraws = 300 – totalAvailableDraws;
if (remainingDraws 100) percentage = 100;
// Display results
document.getElementById('spark-result').style.display = 'block';
document.getElementById('total-draws').innerText = totalAvailableDraws.toLocaleString();
document.getElementById('pulls-needed').innerText = remainingDraws.toLocaleString();
document.getElementById('crystals-needed').innerText = crystalsNeeded.toLocaleString();
document.getElementById('progress-bar-fill').style.width = percentage + '%';
document.getElementById('completion-percent').innerText = Math.round(percentage) + '% Complete';
if (percentage >= 100) {
document.getElementById('progress-bar-fill').style.backgroundColor = '#27ae60';
document.getElementById('completion-percent').innerText = "Ready to Spark!";
} else {
document.getElementById('progress-bar-fill').style.backgroundColor = '#3498db';
}
}