What does it cost to level Blacksmithing right now?

64.5kg in reagents at today's US auction prices, over about 383 crafts. Sell the results and it comes back to 64.5kg.

Where do these numbers come from?

The skill thresholds are read from the game client data for build 12.1.0.68914. The prices are the region-wide auction house, refreshed every few minutes; these are the snapshot taken at 16:57 UTC.

Why does the route change when I reload?

Because the prices did. The cheapest recipe for a stretch of skill is whichever one's reagents are cheapest at that moment, and that moves through the day.

Profession leveling · Classic Blacksmithing · US · prices as of 16:57 UTC

Blacksmithing leveling 1 → 340 · Classic Blacksmithing

64.5kg in reagents over about 383 crafts. Sell what you make and it comes back to 64.5kg.

Start skill

Trainer recipes only

Recipe names carry the colour the profession window gives them: orange is a point every craft, yellow is three in four, green is one in four.

Before the first craft — buy it all at once

One trip to the auction house. Vendor lines are cheaper from the profession vendor than from the board.

ReagentNeedEachTotal

Essence of Water×14856

Total64,472

Step 1 · Skill 1 → 15

Orange

Rough Sharpening Stone

About 14 crafts.42

per skill point3

Rough Stone×14

Step 2 · Skill 15 → 260

Orange→Green

Dense Sharpening Stone

trainer

About 255 crafts.7

per skill point3

Dense Stone×255

Step 3 · Skill 260 → 300

Orange

Elemental Sharpening Stone

needs the recipe item

About 40 crafts.266

per skill point6

Elemental Earth×80

Dense Stone×120

Step 4 · Skill 300 → 340

Orange→Green

Icebane Bracers

needs the recipe item

About 74 crafts.64,197

per skill point1,604

Skill 340 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Elemental Sharpening Stone4012

405

Dense Sharpening Stone25575

2551

Icebane Bracers7431

7422

Rough Sharpening Stone143

1442

Capped at what the market takes in 3 days, so a route never pretends to sell hundreds at once.

Back in your pocket64,465

What's worth crafting with Blacksmithing right now

Questions

How this route is built

What does it cost to level Blacksmithing right now?: 64.5kg in reagents at today's US auction prices, over about 383 crafts. Sell the results and it comes back to 64.5kg.
Where do these numbers come from?: The skill thresholds are read from the game client data for build 12.1.0.68914. The prices are the region-wide auction house, refreshed every few minutes; these are the snapshot taken at 16:57 UTC.
Why does the route change when I reload?: Because the prices did. The cheapest recipe for a stretch of skill is whichever one's reagents are cheapest at that moment, and that moves through the day.

A first craft pays Knowledge, not skill, so it is shown as a badge and left out of the craft count. Vendor reagents are priced at the lower of the vendor and the auction house.