Production-grade odds engine

Blooket calculator

Autumn PackOdds Calculator

Exact drop rates, Legendary & Chroma probabilities, and duplicate refund math for the Autumn Pack — before you spend a single token.

⚡ Real-time exact odds
📊 Based on real drop rates
🎯 No signup required

Default pack

Autumn

Effective cost

13.137 tokens

Last updated

May 3, 2026

The Autumn Pack is a seasonal 25-token pack with one current chroma and one retired chroma excluded from the obtainable lineup.

Target Pack

Autumn

500 tokens

Deterministic odds on the main thread, Monte Carlo runs off it.

02.5k5k slider max

Dupe refund

Uses the precomputed effective cost of 13.137 tokens.

Epic+ probability

55.8%

56

At least one Epic, Legendary, or Chroma.

Legendary probability

18.2%

18

Exact chance of at least one Legendary.

Chroma probability

1.00%

1

Uses the current community-referenced pack Chroma rate.

Estimated opens

20

Cost model

25.000 / box

Data freshness

2026-05-03

Full simulation

Runs 5,000 iterations in a web worker and returns only aggregated results.

Based on 18,240 simulations run today

What is the Autumn Pack?

Understanding the Autumn Blooket box before you spend.

Autumn includes four uncommons, three rares, one epic, one legendary, and one chroma in the current lineup. Golden Pumpkin Pie is retired and not counted in the active drop table.

Pack price

25 tokens

Avg sell-back

11.863 tokens

Epic+ per box

4.00%

Legendary floor

1 in 100

Currently marked as locked in the discovery hub.
Duplicate sell-back average sits around 11.9 tokens.
10 blooks are indexed in this pack collection.
Black Bear · Uncommon · 19.5%
Pumpkin Pie · Uncommon · 19.5%
Chipmunk · Uncommon · 19.5%
Cornucopia · Uncommon · 19.5%
Autumn Cat · Rare · 6.00%
Pumpkin Puppy · Rare · 6.00%
Red Squirrel · Rare · 6.00%
Autumn Crow · Epic · 2.95%
Turkey · Legendary · 1.00%
Goldfinch · Chroma · 0.05%

Drop rates table

Server-rendered odds for the Autumn Pack

These rates are rendered in HTML for crawlability and matched against the exact client calculator. Duplicate refund math uses the precomputed average sell-back value shown below.

RarityDrop rateApprox. oddsSell value
Uncommon78.0%1 in 15 tokens
Rare18.0%1 in 620 tokens
Epic2.95%1 in 3475 tokens
Legendary1.00%1 in 100200 tokens
Chroma0.05%1 in 2,000300 tokens
Avg duplicate sell-back100%Effective open cost: 13.13711.863 tokens
Source: iBlooket calculator + Blooket WikiUpdated: May 3, 2026Per 500 tokens at face price: 20 opens

FAQ

Common questions about Autumn odds

What are the odds of a Chroma in the Autumn Pack?

Using the current community-referenced Autumn Pack table, each box has a 0.05% Chroma rate. At 500 tokens with duplicate refunds off, the exact chance of at least one Chroma is 1.00%.

How does dupe refund work in this Autumn calculator?

The real-time calculator does not simulate endless duplicate loops. Instead, it uses a precomputed effective cost for the Autumn Pack. That effective cost is the pack price minus the exact average sell-back value from the current pack table, which keeps calculations instant while still reflecting duplicate refunds.

What are the odds of at least one Legendary from the Autumn Pack?

This calculator uses exact binomial math, not guesses. At 500 tokens with duplicate refunds off, the chance of at least one Legendary from the Autumn Pack is 18.2%.

Does this tool use simulation for the main odds?

No. The headline probabilities update with the exact formula P(at least 1 success) = 1 - (1 - p)^n. Full simulation only runs when you explicitly click the simulation button, and it runs off the main thread in a web worker.