Free Blooket Calculator — Pack Odds & Drop Rates

Plan every token before you spend it. Exact probability math for every pack and blook.

PackPick which pack you want to open. Each pack has different drop rates.

Space Pack
Space Pack(20 tkn)

Target rarityWhich rarity tier do you want to pull? Higher rarity = lower chance.

How many tokens?How many tokens you have to spend on this pack. Use + / - to adjust one at a time, or type directly.

Enter tokens to see your chances

Type a number on the left or drag the slider

Need advanced tools?

How drop rates work

Exact probability first. Simulation only when you ask for it.

Every live update uses the exact binomial formula P(at least 1 success) = 1 - (1 - p)^n. The pack drop rate is the success value, and the number of expected box opens comes from your tokens divided by either the standard box cost or the pack's static effective cost.

Duplicate refund mode never simulates recursive sell-back loops. Instead, each pack ships with a precomputed effective cost constant. That keeps the slider path fast, hydration-safe, and stable under load. Full simulation runs separately in a Web Worker with 5,000 iterations.

Compare every pack

Blooket pack odds at a glance

Every market pack's live combined drop rate per rarity tier. Click a pack for its full blook-by-blook breakdown, or open the Pack Odds Calculator to turn these rates into a real probability for your token balance.

PackCostEpicLegendaryChroma
Space20 tokens4.50%0.45%0.05%
Medieval20 tokens5.00%1.00%0.00%
Aquatic20 tokens6.00%0.70%0.00%
Lunch25 tokens3.31%0.65%0.04%
Bug25 tokens2.97%0.50%0.03%
Pirate25 tokens3.67%0.30%0.03%
Breakfast20 tokens7.00%0.00%0.00%
Bot20 tokens3.70%0.30%0.00%
Safari20 tokens3.48%0.50%0.02%
Dino25 tokens3.70%0.30%0.00%
Wonderland20 tokens5.00%0.30%0.00%
Outback25 tokens3.60%0.37%0.03%
Ice Monster25 tokens4.50%0.35%0.15%

Free Blooket tools

One calculator for every token decision

The main calculator above answers the big question — what your tokens are actually worth in a given pack. The Pack Opening Simulator lets you open unlimited practice packs against the same drop rates, the Chase Calculator converts any target blook into a concrete token budget at 50%, 90%, or 99% confidence, and the ROI Calculator ranks every pack by expected value per token.

Rounding out the set: the Token Converter maps your balance to pack counts, the Blook Value Calculator lists sell values and expected pull costs for all blooks in the library, and the Token Grinder plans the fastest route to your next token goal. Everything is free, runs in your browser, and never touches your Blooket account — see the methodology for how the drop-rate dataset is sourced and validated.

FAQ

Common questions about Blooket drop rates

The calculator uses exact binomial probability for every live update. It converts your tokens into expected box opens, then computes the chance of at least one Epic+, Legendary, or Chroma without using Monte Carlo in the real-time path.

No. The calculator never connects to your Blooket account, cannot generate free tokens or blooks, and does not interact with Blooket's servers. It is a purely mathematical tool that shows the odds behind the packs you already open in the real game.

Dupe refund mode uses a static effective cost for each pack. Effective cost equals the box price minus the precomputed average sell-back value, which keeps updates instant and avoids recursive refund simulation.

Run Full Simulation launches a 5,000-iteration Monte Carlo process in a Web Worker. It returns only aggregated summary values such as expected sell-back, P90 worst case, and P10 best case.

It varies as Blooket rotates its market packs. The pack comparison table on this page lists the live combined Legendary and Chroma rate for every pack, and the ROI Calculator ranks packs by expected value per token once pack cost is factored in.

The calculator computes your exact probability across all possible outcomes for a given token budget. The Pack Opening Simulator rolls one random session against the same drop rates, so you can see what a real run of openings feels like before spending tokens.

Use the Chase Calculator: pick any blook and it converts the drop rate into the exact token budget you need for a 50%, 90%, or 99% chance, including the cheaper effective cost when you resell duplicates.

Tokens come from playing games, with daily limits on how much you can earn. The Token Grinder calculator compares game modes and estimates how long your target token goal takes at realistic rates.