Plank Make Calculator

Analyze OSRS profitability and XP rates for converting logs to planks using the Lunar spellbook.

Cost vs Revenue Visualizer

Resource	Per Cast	Total Volume	Total Cost/Value

What is Plank Make Calculator?

The plank make calculator is a specialized tool designed for Old School RuneScape (OSRS) players who utilize the Lunar spell “Plank Make.” This high-level utility allows users to determine whether it is more cost-effective to cast the spell or use traditional methods like the sawmill. The plank make calculator accounts for the current market prices of logs, planks, and the necessary runes (Astral and Nature), providing a real-time analysis of skilling efficiency.

Anyone aiming for 99 Magic or high Construction levels should use the plank make calculator. It bridges the gap between pure profit-making and intensive training. A common misconception is that the spell is always profitable; however, market fluctuations can sometimes lead to a net loss, making the plank make calculator essential for bank-standing efficiency.

Plank Make Calculator Formula and Mathematical Explanation

The logic behind the plank make calculator is rooted in simple arithmetic but requires specific variables related to the OSRS spell mechanics. Every cast of Plank Make converts one log into one plank and requires two Astral Runes and one Nature Rune, along with a coin fee that is lower than the sawmill’s standard price.

The Core Formula:

Profit = (Plank Price) - (Log Price + (2 * Astral Price) + (1 * Nature Price) + Spell Coin Fee)

Variable	Meaning	Unit	Typical Range
Log Price	Market value of the raw log	GP	50 – 500 GP
Plank Price	Market value of the finished plank	GP	200 – 1,200 GP
Spell Coin Fee	Fixed GP cost per cast (varies by log)	GP	70 – 1,050 GP
Astral/Nature	Cost of runes consumed per cast	GP	100 – 300 GP total

Practical Examples (Real-World Use Cases)

Example 1: Mahogany Logs
Using the plank make calculator for Mahogany: If Mahogany logs are 350 GP, Planks are 2,100 GP, Astral runes are 150 GP, and Nature runes are 100 GP. The spell fee is 1,050 GP.
Cost: 350 + (2*150) + 100 + 1050 = 1,800 GP.
Profit: 2,100 – 1,800 = 300 GP per cast. For 1,000 logs, this plank make calculator output shows a 300,000 GP profit.

Example 2: Teak Logs
For Teak logs at 180 GP and Planks at 800 GP:
Cost: 180 + 300 (runes) + 350 (fee) = 830 GP.
Profit: 800 – 830 = -30 GP. In this scenario, the plank make calculator warns the player that they are losing money while gaining XP.

How to Use This Plank Make Calculator

1. Select Log Type: Choose between Wood, Oak, Teak, or Mahogany in the dropdown menu.
2. Input Prices: Check the Grand Exchange and enter the current prices for the logs, planks, and runes.
3. Set Quantity: Enter the number of logs you have in your bank.
4. Analyze Results: The plank make calculator will instantly show your net profit, total costs, and the Magic and Construction XP you will receive.
5. Interpret Data: Use the chart to see if the revenue justifies the upfront expenditure.

Key Factors That Affect Plank Make Calculator Results

• Market Volatility: Rune prices fluctuate daily. A 10 GP increase in Astral runes results in a 20 GP profit decrease per cast in the plank make calculator.
• Spell Speed: Plank Make casts every 3 seconds (5 ticks). This affects your GP/hour, which the plank make calculator helps estimate based on total volume.
• Log Tier: Mahogany offers the highest XP but requires the highest coin fee. Teak is often the middle ground for efficiency.
• Astral Rune Sourcing: Buying from shops vs. the Grand Exchange can alter the “Cost” field in your plank make calculator.
• Magic Level Requirements: You must be level 86 Magic. If you use a boost, the cost of that boost should be factored into the plank make calculator manually.
• AFK Factor: The spell is semi-automatic. While the plank make calculator shows raw profit, it doesn’t account for the value of your time if you prefer more active methods.

Frequently Asked Questions (FAQ)

Is the Plank Make spell worth it for profit?

It depends on current GE prices. Always use a plank make calculator before starting a large batch to ensure you aren’t losing money.

How much Magic XP per hour is Plank Make?

You can expect approximately 90,000 Magic XP per hour if you cast manually or slightly less if you let it auto-cast. Our plank make calculator shows the total XP for your batch.

Does the calculator include the coin fee?

Yes, the plank make calculator includes the mandatory GP fee per cast (70 for Wood, 175 for Oak, 350 for Teak, 1,050 for Mahogany).

Can I use this for Ironman accounts?

Absolutely. Ironmen use the plank make calculator to see how much raw GP they need to save compared to using the sawmill.

What is the requirement for Plank Make?

You need level 86 Magic and the Lunar Diplomacy quest completed. Use the plank make calculator to plan your training once these are met.

Is it faster than the sawmill?

In terms of logs per hour, no. But it provides Magic XP and is much more convenient, which is why the plank make calculator is so popular for multi-skilling.

Do I need a staff?

Using an Earth Staff or Mud Staff can save you Earth runes, but since Plank Make only uses Astral and Nature, the staff is purely for convenience or other spells. The plank make calculator focuses on the primary rune costs.

What log is best for profit?

Mahogany usually has the highest margins, but check the plank make calculator regularly as these markets change fast.

Related Tools and Internal Resources

• OSRS Magic Training Guide – Comprehensive strategies for reaching 99 Magic efficiently.
• Construction Leveling Guide – Best ways to use the planks you make with this plank make calculator.
• OSRS Money Making Methods – High-profit activities for mid to high-level players.
• Lunar Diplomacy Quest Guide – Unlock the spellbook required for the plank make calculator.
• OSRS Skilling Efficiency – Learn how to maximize your time in Gielinor.
• OSRS Bankstanding Methods – Other spells and activities you can do while standing at a bank.