What does it cost to level Engineering right now?

453g in reagents at today's EU auction prices, over about 332 crafts. Sell the results and it comes back to 436g. 62% of the route is priced

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 16:31 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 Engineering · EU · prices as of 16:31 UTC

Engineering leveling 1 → 480 · Classic Engineering

453g in reagents over about 332 crafts. Sell what you make and it comes back to 436g. 62% of the route is priced

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

Dense Blasting Powder×2235

×227

Rough Stone×195

×1995

Total453

Step 1 · Skill 1 → 20

Orange

Rough Blasting Powder

About 19 crafts.95

per skill point5

Rough Stone×19

Step 2 · Skill 20 → 260

Orange→Green

Dense Blasting Powder

trainer

About 257 crafts.15

per skill point6

Dense Stone×514

Step 3 · Skill 260 → 280

Orange→Yellow

Large Blue Rocket Cluster

needs the recipe item

About 22 crafts.93

per skill point4

Dense Blasting Powder×22

Rugged Leather×22

Step 4 · Skill 280 → 290

Yellow

Thorium Widget

needs the recipe item

About 14 crafts.121

per skill point12

Thorium Bar×42

Runecloth×14

Step 5 · Skill 290 → 297

Orange→Yellow

Thorium Tube

needs the recipe item

About 8 crafts.117

per skill point16

Thorium Bar×48

Step 6 · Skill 297 → 300

Green

Thorium Widget

needs the recipe item

About 12 crafts.104

per skill point34

Thorium Bar×36

Runecloth×12

Skill 300 → 480

No recipe in this expansion covers this stretch, so it is left out of the totals.

Skill 480 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Thorium Widget2625

266

Dense Blasting Powder2572

2576

Thorium Tube837

Large Blue Rocket Cluster6650

6633

Rough Blasting Powder194

1976

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

Back in your pocket436

What's worth crafting with Engineering right now

Questions

How this route is built

What does it cost to level Engineering right now?: 453g in reagents at today's EU auction prices, over about 332 crafts. Sell the results and it comes back to 436g. 62% of the route is priced
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 16:31 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.