Cube Calculator
Task Bar Hero synthesis calculator with the game's real grade-up odds across all 297 recipes, priced against the live market. Check your profit now.
Cube synthesis combines multiple items of the same grade into a single higher-grade result. There are 297 synthesis recipes covering 3 categories (Accessory, Gear, Material) and every grade from Common upward.
The input quantity and the output grade odds are fixed per grade — synthesising never guarantees an upgrade, and the chance of jumping two grades stays small at every level.
Synthesis by input grade
| Input grade | Items consumed | Output grade odds |
|---|---|---|
| Common | 9 | Uncommon 95%, Rare 4.8% |
| Uncommon | 9 | Rare 96%, Legendary 3.8% |
| Rare | 9 | Legendary 98%, Immortal 2.4% |
| Legendary | 9 | Immortal 99%, Arcana 0.99% |
| Immortal | 9 | Immortal 50%, Arcana 50%, Beyond 0.25% |
| Arcana | 9 | Arcana 67%, Beyond 33%, Celestial 0.17% |
| Beyond | 9 | Beyond 77%, Celestial 23%, Divine 0.077% |
| Celestial | 9 | Celestial 83%, Divine 17%, Cosmic 0.017% |
| Divine | 9 | Divine 91%, Cosmic 9.1% |
Frequently asked questions
What is synthesis in Task Bar Hero?
Synthesis combines materials in the cube to produce a higher-grade material. TBH Index covers all 297 synthesis recipes in the game, each with its exact inputs and outputs read from the game's own tables.
Is synthesis worth it in Task Bar Hero?
It depends on the current Steam Market prices of the inputs versus the output. A recipe that is profitable one week can be a loss the next if the input material rises. The calculator compares the live market value of everything a recipe consumes against what it produces, so you can see which recipes are actually worth running right now.
What is the difference between synthesis and crafting?
Crafting turns materials into a piece of gear with a random grade, so it is a gamble on the outcome. Synthesis converts materials into other materials on a fixed recipe, so the result is deterministic - you know exactly what you get before you start.