Old School Runescape Alchemy Calculator
In Old School RuneScape, buy limits refer to the restrictions put in place on the amount of certain items that can be bought from the Grand Exchange every 4 hours.
These limits are intended to prevent market manipulation and ensure fair trading for all players. The buy limit for an item can vary depending on the item's popularity, rarity, and other factors. Once a player reaches the buy limit for a specific item, they will not be able to purchase any more of that item from the Grand Exchange for a certain period of time.
This calculator is used to calculate the profit you can make from high and low alchemy for each item on the grand exchange. The prices are as real time as possible to try help find the best items to alch for profit.
You can set the price of nature runes to whatever you need to help calculate the profit more accurately.
❓Frequently Asked Questions
What is High Alchemy in OSRS?
High Alchemy (High Alch) is a level 55 Magic spell that converts items into coins equal to their high alchemy value. It requires 1 nature rune and 5 fire runes per cast (or a fire staff). High Alch is commonly used for Magic training because it provides consistent XP (65 per cast) and can be done while doing other activities like agility or during PvM.
How do I make profit from High Alchemy?
To profit from High Alchemy, you need to find items where the high alch value minus the item's purchase price and nature rune cost results in a positive number. Use this calculator to find profitable items by entering current Grand Exchange prices. Popular profit items include rune items, battlestaves, and certain crafted jewelry. Profit margins fluctuate constantly based on GE prices.
What is the difference between High Alch and Low Alch?
High Alchemy requires level 55 Magic and returns 60% of an item's base value, while Low Alchemy requires level 21 Magic and returns only 40% of an item's value. High Alch provides 65 Magic XP per cast compared to Low Alch's 31 XP. High Alchemy is almost always more profitable and efficient, making Low Alchemy rarely used except for very low-level training.
How many High Alchs can I do per hour?
You can cast High Alchemy approximately 1,200 times per hour (one cast every 3 seconds) when focused, or around 1,000-1,100 per hour during normal gameplay. This translates to 78,000 Magic XP per hour at maximum efficiency. Many players alch while training Agility, doing Slayer, or other activities to gain passive Magic XP alongside other skills.
Can I use High Alchemy on any item?
Most items can be alchemized, but some are restricted including untradeable quest items, degraded barrows equipment, pets, and certain special items. Additionally, some items have very low alch values making them extremely unprofitable. The calculator shows which items are profitable or break-even for alching based on current market prices.
How do I use the Alchemy Calculator?
Enter the current Nature Rune price from the Grand Exchange, then browse the table to see items sorted by profit per alch. Green positive values indicate profit, red negative values indicate losses. You can filter by item name, toggle between members/F2P items, and switch between High Alch and Low Alch calculations. The calculator updates automatically based on your inputs.
What are the best items to alch for profit?
The best items to alch change daily based on Grand Exchange prices, but historically profitable items include rune platebodies, rune platelegs, battlestaves (with Varrock diary completion), adamant platebodies, and dragon leather bodies. Use the calculator to find current opportunities. Be aware that alch prices are fixed, so items with low GE buy prices and high alch values offer the best margins.