What does it cost to level Leatherworking right now?

39.6kg in reagents at today's KR auction prices, over about 93 crafts. Sell the results and it comes back to 39.6kg.

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 17:26 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 Leatherworking · KR · prices as of 17:26 UTC

Leatherworking leveling 1 → 75 · Outland Leatherworking

39.6kg in reagents over about 93 crafts. Sell what you make and it comes back to 39.6kg.

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

Heavy Knothide Leather×156170

Knothide Leather Scraps×13020

2,600

×1302,600

Heart of Darkness×159

Total39,631

Step 1 · Skill 1 → 10

Yellow→Green

Knothide Leather

About 26 crafts.2,600

per skill point288

Knothide Leather Scraps×130

Step 2 · Skill 10 → 60

Orange→Yellow

Heavy Knothide Armor Kit

trainer

About 52 crafts.26,520

per skill point530

Heavy Knothide Leather×156

Step 3 · Skill 60 → 75

Orange

Redeemed Soul Wristguards

needs the recipe item

About 15 crafts.10,511

per skill point700

Skill 75 — done. Now sell what you made.

Crafted itemUnitsEachTotal

Heavy Knothide Armor Kit5275

5239

Knothide Leather2612

263

Redeemed Soul Wristguards1548

157

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

Back in your pocket39,588

What's worth crafting with Leatherworking right now

Questions

How this route is built

What does it cost to level Leatherworking right now?: 39.6kg in reagents at today's KR auction prices, over about 93 crafts. Sell the results and it comes back to 39.6kg.
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 17:26 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.