A NEU-style calculator, now inside REI's search bar.
A powerful calculator mod that brings NEU-style calculator functionality to Roughly Enough Items (REI).
Inspired by NotEnoughUpdates's calculator, recreated for newer Minecraft versions where NEU isn't available.


Type calculations directly in the REI search bar and get instant results! Perfect for Hypixel Skyblock players who miss the NEU calculator.
Example: Type 100m - 50m in the REI search → See = 50,000,000 instantly
+, -, * or x, X, /)^, %)sqrt(), abs(), floor(), ceil(), round()k, m, b, t (thousand, million, billion, trillion)s (stack = 64), e (enchanted = 160)h (shulker = 1,728), sc (small chest = 1,728), dc (double chest = 3,456), eb (ender chest = 2,880)ans – Automatically stores last calculation result/calcset commandansCtrl+Z in REI search to recall previous calculationsCtrl+Y to redo/go forward in history/calchist (shows last 15 entries)Dependencies (Required):
How to Install:
mods/ folder:
100m - 75m = 25,000,000 (profit calculation)
100m * 0.05 = 5,000,000 (5% auction tax)
50m * 1.1 = 55,000,000 (10% markup)
(100m - 60m) * 0.95 = 38,000,000 (profit after tax)
1b / 100 = 10,000,000 (price per item)
250m + 150m + 75m = 475,000,000 (total spending)
640 / 64 = 10 (stacks needed)
5s * 2 = 640 (10 stacks)
3h = 5,184 (3 shulkers total items)
2dc + 5sc = 15,552 (storage capacity)
10000 / 64 = 156.25 (156 stacks + 16 items)
27s = 1,728 (full shulker)
160 * 5 = 800 (5 enchanted = 800 items)
5e * 3 = 2,400 (crafting cost)
64 * 27 = 1,728 (shulker capacity)
1728 / 160 = 10.8 (enchanted items per shulker)
9 * 160 = 1,440 (enchanted block crafting)
500 + 300 + 200 = 1,000 (total ores mined)
1000 / 3 = 333.33 (average per hour)
dc / 333 = 10.38 (hours to fill double chest)
64 * 100 = 6,400 (100 stacks)
6400 / 160 = 40 (enchanted items)
1000m - 800m = 200,000,000 (200m profit)
500m * 0.20 = 100,000,000 (20% profit margin)
(1000m - 500m) / 500m = 1 (100% ROI)
100m * 2.5 = 250,000,000 (2.5x flip)
50m * 30 = 1,500,000,000 (bulk buying)
sqrt(144) = 12 (square root)
2^10 = 1,024 (exponents)
100 % 7 = 2 (modulo)
abs(-50) = 50 (absolute value)
floor(3.9) = 3 (round down)
ceil(3.1) = 4 (round up)
round(3.5) = 4 (round nearest)
100m * (1.05 ^ 10) = 162,889,462.68 (10 weeks compound)
(50 + 25) * 1000 = 75,000 (grouped operations)
(sqrt(2500) + abs(-100)) / 2 = 75 (complex formula)
((100 + 50) * 2) - 50 = 250 (nested parentheses)
1b / 1000 = 1,000,000 (price per unit)
500m / 64 = 7,812,500 (price per stack)
100m / 160 = 625,000 (price per enchanted)
50m / 27 = 1,851,851.85 (price per slot)
100m * 0.85 = 85,000,000 (15% discount)
500m * 1.25 = 625,000,000 (25% increase)
(200m - 150m) / 150m = 0.3333 (33% profit margin)
1b * 0.01 = 10,000,000 (1% tax)
160 * 64 = 10,240 (1 stack enchanted blocks)
9 * 9 * 160 = 12,960 (1 enchanted block breakdown)
64 * 64 = 4,096 (double compressed)
1728 / 64 = 27 (stacks per shulker)
1000m * 0.02 = 20,000,000 (2% daily interest)
20m * 365 = 7,300,000,000 (yearly earnings)
(1000m + 200m) / 2 = 600,000,000 (average investment)
500m * 1.5 = 750,000,000 (50% growth)
(100 + 50 + 25) / 3 = 58.33 (average damage)
sqrt(10000) = 100 (damage calculation)
200 * 1.5 = 300 (crit damage)
(500 - 100) * 1.2 = 480 (defense reduction)
50 * 100m = 5,000,000,000 (buying 50 items)
1000 * 500k = 500,000,000 (bulk crafting cost)
64 * 15625 = 1,000,000 (precise calculations)
27 * 64 * 100 = 172,800 (mass storage)
/calcset buy 50m
/calcset sell 75m
$sell - $buy = 25,000,000 (profit using variables)
/calcset stacks 10
$stacks * 64 = 640 (items from stacks)
100 + 50 = 150
ans * 2 = 300 (using last result)
ans + 100 = 400 (chain calculations)
10 x 10 = 100 (using x operator)
10x10 = 100 (no spaces needed)
5 * 5 = 25 (traditional * also works)
100m x 2 = 200,000,000 (x with units)
3s x 5 = 960 (stacks multiplication)
10x5x2 = 100 (chained multiplication)
/calc <expression> - Calculate in chat/calchist - View calculation history (shows last 15)/calcclear - Clear calculation history/calcset <var> <value> - Set custom variable
/calcset profit 100m-50m/calcset stacks 10/calchelp - Show main help menu/calchelp operators - Learn about +, -, *, x, /, ^, %/calchelp functions - Learn about sqrt, abs, floor, ceil, round/calchelp units - Learn about k, m, b, t, s, e, h, sc, dc, eb/calchelp variables - Learn about ans and custom variables/calchelp examples - See practical examples/calchelp config - Learn about configuration/calcconfig - View current configurationConfig file: config/notenoughcalculator.json
{
"decimalPrecision": 10,
"showUnitSuggestions": true,
"enableHistoryNavigation": true,
"showInlineResults": true,
"enableCommaFormatting": true
}
Ctrl + Z in REI search - Recall previous calculation (undo)Ctrl + Y in REI search - Go forward in history (redo)/calchist to view your calculation history in chatans for quick follow-ups100 + 50 = 150
ans * 2 = 300
ans + 1000 = 1,300
/calcset hourly 500k
/calcset daily $hourly * 24
$daily * 30 = 360,000,000 (monthly)
1000000 → 1,000,000
100m + 500k = 100,500,000
2dc + 5h = 18,432
(100m - 50m) * 1.1 / 64 = 859,375 (per stack after markup)
(5 + 3) * 2 = 16 (not 11)
2^(10-3) = 128 (not 1017)
/calcset items 1000
/calcset price 50k
$items * $price = 50,000,000 (total cost)
10 * 5 = 50 (traditional)
10 x 5 = 50 (also works)
10x5 = 50 (no spaces needed)
Need help or found a bug?
Please report issues on GitHub: Issues
enableHistoryNavigation is true in configNEU (NotEnoughUpdates) is one of the most popular Hypixel Skyblock mods, and its calculator feature was incredibly useful. However, NEU isn't available for newer Minecraft versions, leaving players without this essential tool.
Not Enough Calculator solves this problem by bringing NEU-style calculator functionality to Roughly Enough Items (REI), which works on newer Minecraft versions.
Special thanks to NotEnoughUpdated (NEU) for the original calculator inspiration! This mod brings the beloved NEU calculator experience to newer Minecraft versions.
All Rights Reserved - You can use this mod in modpacks with credit. Please link to the official mod page when featuring this mod.
Developed by Rijz & Laze
Type. Calculate. Profit.
Last updated: January 2026
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