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Smelting is a crafting skill: feed ore into a furnace to smelt metal bars and earn Smelting XP plus a little Speed XP. Every bar consumes ore (most also need a Coal Ore), so the real profit is what the bar sells for minus what its inputs cost. The table below ranks each bar by XP per hour and by NET gold per hour after material cost, so you can pick the best bar for either fast levels or real profit.

Plan your smelting training

Enter where you are and where you want to be — see exactly how many actions, how long, and what materials it takes.

Per-level XP requirements are community-sourced estimates — IdleMMO does not publish an official XP curve, so treat action and time totals as close approximations, not exact figures.

⚡ Boosts

Materials used

ResourceLvlXP Speed XP (approx.) TimeXP/Hr Materials VendorMarket Net GP/ItemGP/s 1 Hour4 Hours8 Hours
Tin Bar 1 3 1 12.0s 900 1× Tin Ore, 1× Coal Ore
−11 cost
5 7 -4 -0.33 -1,200
300 items
900 XP
-4,800
1,200 items
3,600 XP
-9,600
2,400 items
7,200 XP
Copper Bar 5 5 2 15.0s 1,200 1× Copper Ore, 1× Coal Ore
−11 cost
6 15 4 0.27 960
240 items
1,200 XP
3,840
960 items
4,800 XP
7,680
1,920 items
9,600 XP
Iron Bar 10 10 3 23.0s 1,565 1× Iron Ore, 1× Coal Ore
−16 cost
8 31 15 0.65 2,348
157 items
1,565 XP
9,391
626 items
6,261 XP
18,783
1,252 items
12,522 XP
Lead Bar 15 15 5 27.0s 2,000 1× Lead Ore, 1× Coal Ore
−14 cost
9 22 8 0.30 1,067
133 items
2,000 XP
4,267
533 items
8,000 XP
8,533
1,067 items
16,000 XP
Steel Bar 25 21 7 31.0s 2,439 1× Steel Ore, 1× Coal Ore
−16 cost
15 26 10 0.32 1,161
116 items
2,439 XP
4,645
465 items
9,755 XP
9,290
929 items
19,510 XP
Mercury Bar 40 27 9 36.0s 2,700 1× Mercury Ore, 1× Coal Ore
−18 cost
20 30 12 0.33 1,200
100 items
2,700 XP
4,800
400 items
10,800 XP
9,600
800 items
21,600 XP
Chromite Bar 60 35 11 40.0s 3,150 1× Chromite Ore, 1× Coal Ore
−20 cost
25 36 16 0.40 1,440
90 items
3,150 XP
5,760
360 items
12,600 XP
11,520
720 items
25,200 XP
Uranium Bar 70 40 13 44.0s 3,273 1× Uranium Ore, 1× Coal Ore
−23 cost
35 43 20 0.45 1,636
82 items
3,273 XP
6,545
327 items
13,091 XP
13,091
655 items
26,182 XP
Mystic Bar 90 55 16 55.0s 3,600 1× Mystic Ore, 1× Coal Ore
−30 cost
50 68 38 0.69 2,487
65 items
3,600 XP
9,949
262 items
14,400 XP
19,898
524 items
28,800 XP

The Materials column shows what each craft costs. Net profit (sale − materials) is shown only where a live market price exists for the output — crafted gear isn't meaningfully sold to vendors, so we show “—” rather than a misleading vendor-based loss. Live market pricing is coming to fill these in.

Smelting FAQ

What is the best smelting XP per hour in IdleMMO?

Mystic Bar gives the most smelting XP at about 3,600 XP/hr (requires level 90).

Which smelting resource makes the most gold in IdleMMO?

Mystic Bar earns the most gold at roughly 2,487 gold/hr (level 90).

What level do you need to cut Mystic Bar?

Mystic Bar requires level 90 smelting in IdleMMO.