Minecraft & Roblox Reference
The numbers that do not change: stack and storage sizes, beacon blocks per tier, the 8:1 Nether ratio, the experience level bands, and every Roblox fee and DevEx rate with the date it took effect. Each card links to the calculator that applies it.
Blocks & storage
The three numbers every material count reduces to. Everything the build planner reports is one of these divisions.
Stack size
blocks- Most blocks — 64 per stack
- Ender pearls, snowballs, signs — 16 per stack
- Tools, armour, buckets — 1 per stack
A full inventory of 36 slots therefore holds 2,304 stackable blocks.
Open the Minecraft Build Material Calculator →Shulker box
blocks- Slots — 27
- Stacks — 27 × 64 = 1,728 blocks
- Boxes per inventory — 27 (one per slot)
The unit that decides how many trips a build takes, not the stack.
Open the Minecraft Build Material Calculator →Hollow cuboid
formula- L, W — floor dimensions in blocks
- H — height in blocks
- − 4 — corners, counted once not twice
Walls plus both caps. Subtracting 4 from the perimeter is the step people miss.
Open the Minecraft Build Material Calculator →Beacon pyramids
A beacon base is an exact block count per tier — nothing is approximate here, so it can simply be looked up.
Blocks per tier
cumulative- Tier 1 — 3×3 = 9 blocks
- Tier 2 — + 5×5 = 34 blocks
- Tier 3 — + 7×7 = 83 blocks
- Tier 4 — + 9×9 = 164 blocks
Iron, gold, diamond, emerald and netherite all work, and may be mixed.
Open the Minecraft Beacon Calculator →Ingot cost
ingots- Blocks at tier 4 — 164
- Ingots per block — 9
- Total — 164 × 9 = 1,476 ingots
- In stacks — 23 stacks + 4
Roughly 23 stacks of iron for a full pyramid — the real cost of a tier-4 beacon.
Open the Minecraft Beacon Calculator →Range & duration
blocks / seconds- T — tier, 1 to 4
- Tier 4 range — 50 blocks horizontally
- Vertical — 256 down, to build limit up
- Effect duration — 9 + 2T seconds after leaving
Range is horizontal from the beacon; the vertical column is effectively the whole world height.
Open the Minecraft Beacon Calculator →The Nether
Portal linking is pure arithmetic, and the one ratio below explains every portal that "went to the wrong place".
Coordinate ratio
8 : 1- X and Z — divide by 8 going in, multiply by 8 coming out
- Y — unchanged
- Bedrock Edition — same 8:1 ratio
Rounding matters: 1,200 → 150 exactly, but −450 → −56 and back to −448.
Open the Minecraft Nether Portal Calculator →Portal frame
obsidian- Smallest frame — 4 wide × 5 tall, corners optional
- Portal blocks — 2 × 3 = 6
- Largest frame — 23 × 23
Corners are not required, which is where the 14-block instinct becomes 10.
Open the Minecraft Nether Portal Calculator →Search radius
blocks- Existing portal search — 128 blocks in the Nether
- If none found — a new portal is generated
- Consequence — two Overworld portals under 1,024 blocks apart can share one Nether portal
The usual cause of a portal pair that refuses to link the way you expect.
Open the Minecraft Nether Portal Calculator →Experience
The cost of a level is not constant — it rises in three bands, which is why the last few levels before 30 feel so much slower.
Points to reach a level
three bands- Levels 1–15 — L² + 6L
- Levels 16–30 — 2.5L² − 40.5L + 360
- Levels 31+ — 4.5L² − 162.5L + 2,220
Total points from zero to level L. Java Edition.
Open the Minecraft XP Calculator →Level 30 milestone
points- Level 27 — 1,089 points
- Level 30 — 1,395 points
- Those three levels — 306 points
- Levels 47 → 50 — 822 points
The same three levels cost 2.7× more at level 50 than at level 30.
Open the Minecraft XP Calculator →Common XP sources
points each- Most hostile mobs — 5
- Bottle o' Enchanting — 3–11 (7 average)
- Ore blocks — 0–5 depending on ore
- Smelting, breeding, trading — 1–20
Mob and bottle averages are what the level-gap estimates are based on.
Open the Minecraft XP Calculator →Roblox rates & fees
Four numbers govern what a Roblox creator earns. Roblox sets all four and has changed them, so each is dated below.
Marketplace fee
of the sale- You keep — 70% of the list price
- 500 R$ pass — you keep 350 R$
- To net a target — divide by 0.70, do not add 30%
Adding 30% to 350 gives 455, which nets only 318 R$ — still 32 short.
Open the Robux Tax Calculator →DevEx rate — standard
per Robux- Applies to — Robux earned from 10 AM PT, 5 Sept 2025
- 30,000 Robux — $114
- Per 1,000 Robux — $3.80
Roblox calls this the "New Rate". Quoted from the DevEx help page.
Open the Roblox DevEx Calculator →DevEx rate — legacy & US 18+
per Robux- Old Rate — $0.0035 — Robux earned before 5 Sept 2025
- US 18+ rate — $0.0054 — effective 8 June 2026
- Cash-out order — 18+ balance first, then Old Rate, then New Rate
An old-rate balance must be cleared before any new-rate Robux can be cashed out.
Open the Roblox DevEx Calculator →Retail price of Robux
per Robux- 400 R$ — $4.99
- 800 R$ — $9.99
- Ratio to DevEx — a player pays ~3.3× what a creator cashes out at
The gap between the two rates is the single most misunderstood thing about Robux.
Open the Robux to USD Calculator →DevEx minimum
Earned Robux- At the standard rate — $114
- Counts — game passes, developer products, engagement payouts
- Does not count — purchased, traded or gifted Robux
Only Earned Robux count towards the threshold — buying Robux does not move it.
Open the Roblox DevEx Calculator →Key numbers at a glance
How to use this page
Read a figure here when you want to know why a calculator produced what it produced, or when you want to check our working. Every card states the whole rule rather than one worked answer, so it also serves as a lookup while you are building or pricing. If you want the arithmetic done for you, follow the link at the foot of the card — each calculator shows a worked example using these same numbers.
What can change, and when
The Minecraft figures are stable across Java Edition releases but are not guaranteed: block counts and XP bands have survived many versions, while mob XP drops and generation rules have been tuned before. The Roblox numbers are the volatile ones — Roblox sets the marketplace fee and every DevEx rate unilaterally, changed the standard rate in September 2025 and added a US 18+ rate in June 2026. Each rate above is dated for that reason. Before you plan around a payout, check the current figure on your own creator dashboard.
Sources & references
Every figure on this page traces to one of these:
- Minecraft Wiki — Beacon — pyramid block counts per tier, effect range and duration
- Minecraft Wiki — Experience — the three level bands and per-source point values
- Minecraft Wiki — Nether portal — the 8:1 coordinate ratio, frame sizes and the 128-block search
- Roblox — Developer Exchange help page — all three DevEx rates, their effective dates and the cash-out order
- Roblox Creator Hub — Developer Exchange — what counts as Earned Robux and how a cash-out balance accrues
Further reading
The retail price, the 30% marketplace cut and the DevEx rate are three different numbers. This guide walks the whole chain from a player’s $6.25 to a creator’s $1.33.
Cite this page
You are welcome to quote these figures in a lesson, a forum answer, a wiki or a write-up. A link back is all we ask — it lets your reader check the figure against its source, which is the point of the page.
Tool Corner, “Minecraft & Roblox Reference”. Updated 29 July 2026. https://toolcorner.net/gaming-reference.html
Every figure is dated, and the sources above are linked wherever a stable public page exists, so a citation here can be traced rather than taken on trust.