XP Calcs
Per-cast margin ledger

OSRS High Alch Calculator

Enter a quantity, alchemy value, purchase cost and nature rune cost to estimate total profit and fixed Magic experience.

Set activity assumptions

Estimated gp profit

2,000

Secondary output: 650.

How it works

High Level Alchemy on this page is intentionally narrow: enter your own item value, buy price, cast speed and rune costs; then read total profit and target-level progress directly.

Use this page when you only need a single cast action and one item type. If you need both high and low alchemy at the same time, the page that compares both modes and break-even in one place is the right one.

The core coin output is:

  • Alch value at the selected mode minus item buy price minus rune cost gives raw per-cast profit.
  • Raw profit multiplied by the required casts gives total profit for your target.
  • XP per cast is fixed at 65 for high Alchemy and 31 for low Alchemy.

Rune and item inputs are all user-entered; this is not a live market feed. If item value is below your cost after rune deductions, this tool will show negative profit and can be used as a stop-loss signal.

The two-way split is this: high alchemy is the high-efficiency default and low alchemy is mainly used for lower-level training windows or lower-yield conversion workflows. Both follow the same arithmetic with different coin output percentages.

This page does not model stack limitations, banking delays, animation interruptions, or failed casts in the same way as a live bot simulation. It is an arithmetic planning ledger that can be reapplied across changing market conditions.

profit=quantity×(alchemy value−item cost−rune cost)Magic XP=quantity×65\begin{aligned} \text{profit} &= \text{quantity} \times (\text{alchemy value} - \text{item cost} - \text{rune cost}) \\ \text{Magic XP} &= \text{quantity} \times 65 \end{aligned}
Inputs are kept at full precision. Discrete counts round up when a partial action cannot complete the goal; probabilities and rates keep their fractional meaning.

Worked example

Ten items with a 1,200 gp alchemy value, 900 gp item cost and 100 gp rune cost produce 2,000 gp and 650 Magic XP.

Interpreting the result

Start by checking that each field describes the same scenario as the result: levels are visible base levels, bonuses are entered separately, costs are per unit, and a one-in-X rate means one divided by X on each eligible roll. The calculator updates immediately and writes the complete input state into the address bar. “Copy link” preserves those assumptions; “Copy result” copies a short summary rather than the entire method.

Do not treat a rounded count as an hourly rate. A required-action total says how many successful units complete the target under the entered reward. Banking, movement, failed attempts, animation timing, missed ticks and setup changes affect elapsed time. When time matters, measure a representative session with the same method and divide the required count by the observed successful actions per hour.

Economic outputs are arithmetic scenarios rather than live market quotations. Check current item values before buying supplies, include any outputs that can be sold, and consider limits or low-volume price movement. Probability outputs describe repeated independent trials; they do not promise that a result arrives at the displayed attempt count. The visible formula is the authority for what this page includes.

Read this as a planning estimate. Game updates, equipment effects, failures, travel, downtime and live prices can move a real session away from the mathematical result. Check the inputs against the account and use the output as a reproducible baseline.

Questions about OSRS High Alch Calculator

Does the tool use live market prices?
No. Enter current prices yourself so the arithmetic stays transparent.
Is the nature rune included?
Yes. The fourth input subtracts rune cost from every cast.
How much XP is one high alch?
A successful High Level Alchemy cast awards 65 Magic XP.

Sources

Mechanics and fixed tables were reviewed in 2026. Price-like inputs are user-controlled or approximate rather than live quotes. Source links name the public reference used for the page; the visible formula states the exact implementation.

  1. Old School RuneScape Wiki — Experience — Public XP table and level formula, reviewed 2026.
  2. Old School RuneScape Wiki — Combat level — Seven-stat combat-level formula, reviewed 2026.
  3. Old School RuneScape Wiki — Maximum melee hit — Effective Strength and maximum-hit formula, reviewed 2026.
  4. Old School RuneScape Wiki — Attack roll — Accuracy and defence-roll mechanics, reviewed 2026.
  5. Old School RuneScape Wiki — Calculators — Public skill, activity and reward tables, reviewed 2026.

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