What does it cost to level Alchemy right now?

8kg in reagents at today's TW auction prices, over about 137 crafts. Sell the results and it comes back to 7.9kg.

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 15:54 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 · Legion Alchemy · TW · prices as of 15:54 UTC

Alchemy leveling 1 → 100 · Legion Alchemy

8kg in reagents over about 137 crafts. Sell what you make and it comes back to 7.9kg.

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

Total7,966

Step 1 · Skill 1 → 20

Orange

Ancient Healing Potion

needs the recipe item

About 19 crafts.474

per skill point24

Yseralline Seed×76

Crystal Vial×19

Step 2 · Skill 20 → 40

Orange

Ancient Healing Potion

needs the recipe item

About 20 crafts.499

per skill point24

Yseralline Seed×80

Crystal Vial×20

Step 3 · Skill 40 → 70

Orange→Yellow

Ancient Healing Potion

needs the recipe item

About 34 crafts.848

per skill point28

Yseralline Seed×136

Crystal Vial×34

Step 4 · Skill 70 → 100

Orange→Green

Potion of Deadly Grace

needs the recipe item

About 64 crafts.6,143

per skill point204

Skill 100 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Potion of Deadly Grace6425

6416

Ancient Healing Potion7312

738

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

Back in your pocket7,941

What's worth crafting with Alchemy right now

Questions

How this route is built

What does it cost to level Alchemy right now?: 8kg in reagents at today's TW auction prices, over about 137 crafts. Sell the results and it comes back to 7.9kg.
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 15:54 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.