Saltpetre price - OSRS Grand Exchange

A power that can be added to compost to make fertiliser. The current Old School RuneScape Grand Exchange price of Saltpetre is approximately 4 gp (buy 4 gp, sell 3 gp).

• Buy (insta-buy) price: 4 gp
• Sell (insta-sell) price: 3 gp
• Buy limit (4 hours): 13,000
• High alchemy value: 3 gp
• Members item: Yes

Saltpetre price trend, last 30 days

Over the last 30 days, Saltpetre has traded between 3 gp and 5 gp. The price is down 25.0% across that window, moving from about 4 gp to 3 gp, and down 25.0% over the last 7 days. The sharpest single-day move in that stretch was +33.3% on September 27, 2026.

About 50,493,780 units changed hands across those 30 trading days, an average of 1,683,126 per day, so Saltpetre is currently extremely liquid: offers at fair prices typically fill within minutes.

For flippers, the current spread is 1 gp before tax and about 1 gp per item after the 2% GE tax; a full buy-limit cycle of 13,000 ties up about 39,000 gp and can return up to 13,000 gp. Step-by-step numbers are on the how to flip Saltpetre page.

View the live Saltpetre price chart, daily volume and full history on GrandExchange.com.