What does it cost to level Engineering right now?

243.8kg in reagents at today's KR auction prices, over about 131 crafts. Sell the results and it comes back to 243.3kg.

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 16:27 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 · Khaz Algar Engineering · KR · prices as of 16:27 UTC

Engineering leveling 1 → 120 · Khaz Algar Engineering

243.8kg in reagents over about 131 crafts. Sell what you make and it comes back to 243.3kg.

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

Whimsical Wiring×612140

Handful of Bismuth Bolts×222326

Entropy Enhancer×47119

Extravagant Emerald×4715

Crystalline Powder×3339

×3312

Total243,778

Step 1 · Skill 1 → 17

Orange→Yellow

Whimsical Wiring

trainerfirst craft: +Knowledge

About 17 crafts.580

per skill point36

Frayed Wiring×17

Bismuth×51

Step 2 · Skill 17 → 40

Orange→Green

Safety Switch

trainerfirst craft: +Knowledge

About 33 crafts.2,220

per skill point96

Crystalline Powder×33

Bismuth×165

Aqirite×99

Step 3 · Skill 40 → 70

Orange→Green

Overclocked Cogwheel

specializationfirst craft: +Knowledge

About 47 crafts.14,299

per skill point476

Extravagant Emerald×47

Handful of Bismuth Bolts×47

Gyrating Gear×47

Entropy Enhancer×47

Step 4 · Skill 70 → 120

Orange→Green

P.0.W. x2

specializationfirst craft: +Knowledge

About 34 crafts.226,678

per skill point4,533

Handful of Bismuth Bolts×2176

Skill 120 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Overclocked Cogwheel477

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

Back in your pocket243,314

What's worth crafting with Engineering right now

Questions

How this route is built

What does it cost to level Engineering right now?: 243.8kg in reagents at today's KR auction prices, over about 131 crafts. Sell the results and it comes back to 243.3kg.
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 16:27 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.