What does it cost to level Blacksmithing right now?

2.1kg in reagents at today's US auction prices, over about 84 crafts. Sell the results and it comes back to 2kg.

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 04:57 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 · Outland Blacksmithing · US · prices as of 04:57 UTC

Blacksmithing leveling 1 → 75 · Outland Blacksmithing

2.1kg in reagents over about 84 crafts. Sell what you make and it comes back to 2kg.

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

Netherweave Cloth×2014

×202

Total2,053

Step 1 · Skill 1 → 40

Orange

Lesser Ward of Shielding

needs the recipe item

About 39 crafts.936

per skill point24

Adamantite Bar×39

Step 2 · Skill 40 → 50

Orange

Adamantite Weightstone

needs the recipe item

About 10 crafts.242

per skill point24

Adamantite Bar×10

Netherweave Cloth×20

Step 3 · Skill 50 → 75

Orange→Green

Greater Ward of Shielding

needs the recipe item

About 35 crafts.875

per skill point35

Eternium Bar×35

Skill 75 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Lesser Ward of Shielding3915

395

Greater Ward of Shielding3512

354

Adamantite Weightstone1010

101

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

Back in your pocket2,042

What's worth crafting with Blacksmithing right now

Questions

How this route is built

What does it cost to level Blacksmithing right now?: 2.1kg in reagents at today's US auction prices, over about 84 crafts. Sell the results and it comes back to 2kg.
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 04:57 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.