Saltpetre price in OSRS — live Grand Exchange data

About Saltpetre

In game it is examined as “A power that can be added to compost to make fertiliser.” Saltpetre is members-only, so a membership is needed to trade or use it. The base game value is 5 gp, which is what shops price from rather than what players pay.

Saltpetre buy limit

The Grand Exchange lets one account buy 13,000 every 4 hours. That is a generous limit, so the market rather than the limit is usually what caps a position here. Filling it once costs about 65,000 gp at the 5 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.

GE tax on Saltpetre

The 2% sale tax is rounded down, and at 5 gp it rounds to nothing — sales under 50 gp are untaxed, so a flip here keeps its whole margin.

High alching Saltpetre

High alchemy turns one Saltpetre into 3 gp. That is less than the 142 gp nature rune the cast costs, so alching Saltpetre always loses money.

How much Saltpetre trades

Saltpetre sees about 329.8K trades a day, which makes it heavily traded — orders at a fair price usually fill quickly. That is roughly 25 times the 13,000 buy limit.

Saltpetre FAQ

How much is Saltpetre in OSRS? Saltpetre is 5 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 3 gp. The chart above is live.

What is the buy limit for Saltpetre? 13,000 every 4 hours.

Can you high alch Saltpetre for profit? No — the alch value is 3 gp and the nature rune alone costs 142 gp.

Do you need members for Saltpetre? Yes, Saltpetre is members-only.