OSRS Alchemy Calculator
Determine your profit or loss from casting High and Low Level Alchemy in Old School RuneScape. This OSRS alchemy calculator provides instant results to maximize your GP and Magic experience.
The fixed amount of GP the High Alchemy spell converts the item into. Example: Rune Platelegs alch for 38,400 GP.
The price you paid for the item on the Grand Exchange or from a shop (in GP).
The current cost of a single Nature Rune. Check the Grand Exchange for the latest price.
High Alchemy Profit / Loss Per Cast
Chart: Visual comparison of Total Cost vs. High Alchemy Value per cast.
| Number of Alchs | Total Profit (GP) | Total Magic XP Gained |
|---|
What is the OSRS Alchemy Calculator?
An OSRS Alchemy Calculator is a tool used by Old School RuneScape players to determine the financial outcome of using the Magic spells High Level Alchemy or Low Level Alchemy. The calculator takes the three core variables of the process—the item’s acquisition cost, the item’s fixed alchemy value, and the cost of a Nature rune—to instantly output the profit or loss per cast. This allows players to efficiently train their Magic skill while potentially making a profit, rather than losing money.
This tool is essential for anyone looking to perform alchemy, from players building their bankroll to those seeking a semi-AFK money-making method. By using an osrs alchemy calculator, you avoid the tedious manual calculation and the risk of losing millions of GP on unprofitable items.
OSRS Alchemy Calculator Formula and Explanation
The core of any osrs alchemy calculator is a simple profit calculation formula. It subtracts your expenses from your revenue to find the net gain.
Formula:
Profit = High Alch Value - (Item Cost + Nature Rune Cost)
This formula applies to the High Level Alchemy spell. For Low Level Alchemy, the “High Alch Value” is simply replaced by the “Low Alch Value,” which is typically 60% of the high value. Our calculator handles both automatically.
Variables Table
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| High Alch Value | The fixed amount of coins an item is converted into by the spell. This value does not change with GE prices. | GP (Gold Pieces) | 1 – 300,000+ |
| Item Cost | The price you paid to acquire the item, usually from the Grand Exchange. | GP (Gold Pieces) | 1 – 300,000+ |
| Nature Rune Cost | The price you paid for the Nature Rune required for one cast of the spell. | GP (Gold Pieces) | 90 – 200 |
Practical Examples
Example 1: Profitable Alchemy
Let’s say you are considering alchemizing Rune Platelegs. You check the Grand Exchange and use the osrs alchemy calculator:
- Inputs:
- Item’s High Alchemy Value: 38,400 GP
- Your Item’s Cost: 37,949 GP
- Nature Rune Price: 93 GP
- Calculation:
- Total Cost = 37,949 + 93 = 38,042 GP
- Profit = 38,400 – 38,042 = 358 GP
- Result: You will make a profit of 358 GP for every Rune Plateleg you alchemize, in addition to gaining 65 Magic experience.
Example 2: Unprofitable Alchemy
Now, consider a Yew Longbow, which is often a break-even or loss item.
- Inputs:
- Item’s High Alchemy Value: 768 GP
- Your Item’s Cost: 750 GP
- Nature Rune Price: 93 GP
- Calculation:
- Total Cost = 750 + 93 = 843 GP
- Profit = 768 – 843 = -75 GP
- Result: You will lose 75 GP per cast. In this scenario, you are paying for the Magic experience. Find better items with our OSRS GE price checker.
How to Use This OSRS Alchemy Calculator
- Find the High Alch Value: First, determine the item’s high alchemy value. You can find this on the OSRS Wiki or by casting the spell once in-game. Enter this into the “Item’s High Alchemy Value” field.
- Enter Your Item Cost: Input the exact price you paid for the item on the Grand Exchange into the “Your Item’s Cost” field.
- Enter Nature Rune Price: Check the current GE price for a Nature Rune and enter it into the “Nature Rune Price” field.
- Analyze the Results: The calculator will instantly show you the profit or loss per cast in the main results area. A positive number (green) is profit, while a negative number (red) is a loss.
- Review Projections: Check the chart and table below the calculator to see your potential profit and XP gain over hundreds or thousands of casts.
Key Factors That Affect Alchemy Profit
- Grand Exchange Fluctuations: The prices of both the item you’re alchemizing and the Nature Runes are constantly changing. A profitable item today might be a losing item tomorrow.
- Item Buying Limits: The Grand Exchange limits how many of an item you can buy every 4 hours. This can cap your profit and requires you to find multiple profitable items.
- High Alch vs. GE Price Spread: The profit is entirely dependent on the difference between the fixed High Alch value and the fluctuating GE price. The bigger the gap, the higher the profit.
- Magic Experience Gain: High Alchemy provides 65 XP per cast. For many, the consistent XP is a primary benefit, and a small loss per alch is considered the cost of training.
- Casting Speed: A player can cast High Alchemy approximately 1,200 times per hour. This rate determines your total hourly profit and XP.
- Use of a Fire Staff: The alchemy spells require Fire runes. Using any elemental staff that provides infinite Fire runes (like a Staff of Fire) is essential to eliminate that cost and maximize profit. Our OSRS alchemy calculator assumes you are using one.
Frequently Asked Questions (FAQ)
What is the difference between High and Low Alchemy?
High Level Alchemy (Level 55 Magic) converts an item into coins worth 60% of its specialty store value. Low Level Alchemy (Level 21 Magic) converts it into just 40% of that value. For this reason, High Alchemy is nearly always preferred for profit.
How much Magic XP does alchemy give?
High Alchemy gives 65 XP per cast. Low Alchemy gives 31 XP per cast.
Is alchemy a good way to make money in OSRS?
It can be a steady, low-risk money maker if you find the right items. With focused alching, profits can range from 100k to 300k GP per hour, but this is highly dependent on market prices.
What are the best items to high alch?
The best items change constantly. However, common profitable categories include rune equipment, dragonhide bodies, battlestaves, and onyx bolts (e). Always use an OSRS alchemy calculator to verify profit before buying in bulk.
How do I find an item’s high alch value?
The easiest way is to look it up on the OSRS Wiki. Alternatively, you can sell one of the items to a specialty store; the price it offers is the High Alch value. General store prices reflect the Low Alch value.
Does the GE tax affect alchemy profit?
The 1% Grand Exchange tax applies when you sell an item to another player. Since alchemy generates coins directly from a spell, the output is NOT taxed. However, the tax may have an indirect effect on the buy/sell prices of items, so it’s always wise to re-check your numbers in an osrs alchemy calculator.
How fast can you cast alchemy?
The spell has a cooldown of 5 game ticks, which translates to 3 seconds per cast. This allows for a maximum of 1,200 casts per hour.
Why does this OSRS alchemy calculator not have a unit switcher?
In Old School RuneScape, the only unit of currency is Gold Pieces (GP). Since all costs and values are in GP, there is no need for unit conversion.