Taskbar Hero Cube Calculator for Synthesis Materials

Choose the grade of the items you already have, the grade you want, and the number of finished items. The calculator compounds the displayed nine-material recipe once for every one-grade step between those two grades.

For a one-grade promotion, one target item needs nine starting items and one craft. For a two-grade promotion, the conservative chain needs 81 starting items: nine first-step crafts produce the nine intermediate items, then one more craft produces the target. The same rule continues through Common, Uncommon, Rare, Legendary, Immortal, Arcana, Beyond, Celestial, Divine, and Cosmic.

Total crafts include every intermediate operation, not only the final click. For example, two Legendary targets starting from Common require 1,458 Common items in the one-grade-at-a-time model. The chain contains 162 Common-to-Uncommon crafts, 18 Uncommon-to-Rare crafts, and two Rare-to-Legendary crafts, for 182 crafts in total.

That is a planning ceiling for the displayed recipe path, not an expected average. A successful +2-grade result can bypass an intermediate grade and reduce the actual items and crafts used.

The local data snapshot stores a normal higher-grade weight and a separate two-grade weight for each starting grade. The calculator divides the two-grade weight by the total of both weights. These per-craft values come from the public-reference snapshot synchronized on July 18, 2026.

These percentages describe each eligible Synthesis craft in the snapshot. They are not a guarantee that a particular batch will contain a skip, and the calculator does not reduce the headline material total by an assumed number of lucky results. Keeping the conservative total separate from the chance display makes it clear which number is deterministic and which outcome is random.

The output answers a narrow inventory question: how large is the full one-grade-at-a-time Synthesis chain? It does not decide whether an item should be synthesized, equipped, sold, offered, or used in another Cube function.

That boundary matters because players compare Synthesis with selling gear for rune Gold, but those recommendations change with item value, upgrades, balance changes, and market conditions. No live Steam Market price, item roll, equipment value, or account state enters this calculation.

If the result is larger than your inventory, use the Task Bar Hero Farming Calculator to compare repeatable EXP and Gold routes. Use the Rune Planner when the competing use for Gold is a rune path, or the Pet Farming Calculator when the current goal is a kill-based unlock.

Task Bar Hero's Hero-dric Cube is broader than Synthesis. Public references list Synthesis alongside Alchemy, Crafting, Decoration, Engraving, Inscription, Extraction, and Offering. Those functions have different inputs and outcomes, so presenting one material-chain formula as a calculator for the whole Cube would be inaccurate.

This page therefore does not calculate crafted gear recipes, material exchange value, decoration or engraving effects, inscription outcomes, extraction returns, Offering rewards, or market expected value. It also does not treat the public data as permanent. Check the displayed snapshot against the latest official patch if a recipe, grade, or result weight changes in game.