Calculators

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Calculators are used to determine experience points and item manufacture costs based on real-time prices in the Grand Exchange Market Watch.

Agility[edit | edit source]

Construction[edit | edit source]

Calculator Format Description
Material Cost per XP GEMW Calculates the cost per experience gained from each material used in Construction.
Making Flatpacks GEMW Calculates the profit/losses and cost per experience from making flatpacks.

Cooking[edit | edit source]

Calculator Format Description
Brewing GEMW Calculates the profit/loss from brewing ales, based on the assumption that all ingredients are bought.
Cooking fish GEMW Calculates the profit/loss from cooking fish, based on the assumption that the raw fish are bought.
Cooking pies GEMW Calculates the profit/loss from preparing and cooking pies based on the assumption that all ingredients are bought.
Cooking pizzas GEMW Calculates the profit/loss from buying pizza independents and putting them together and cooking the pizza.
Cooking potatoes GEMW Calculates the profit/loss from preparing potatoes, assuming all ingredients are bought.

Crafting[edit | edit source]

Calculator Format Description
Crafting ranged armour from untanned hides GEMW Calculates the cost of using various hides to craft ranging armour using the tanner and Tan Leather spell.
Crafting ranging armour from tanned hides GEMW Calculates the cost of crafting ranging armour from multiple types of tanned or prepared materials.
Crafting jewellery GEMW Calculates the cost of using gold and silver bars, and gems to craft different types of jewellery.
Gem cutting GEMW Calculates the wealth difference from successfully cutting gems.
Crafting battlestaves GEMW Calculates the profit of making battlestaves from unpowered orbs.
Glassblowing GEMW Calculates the profit/loss per XP for blowing molten glass into various items.
Crafting xerician armour GEMW Calculates the cost of using Xerician fabric to craft magic armour.

Farming[edit | edit source]

Calculator Format Description
Herbs JavaScript Calculates the profit and exp/gold for growing herbs
Trees GEMW Calculates the exp/gp cost/profit for growing trees

Firemaking[edit | edit source]

Calculator Format Description
Burning Logs GEMW

Calculates the cost per XP for burning logs.

Fishing[edit | edit source]

Fletching[edit | edit source]

Calculator Format Description
Fletching ranged weapons GEMW Calculates the profit/loss from fletching and stringing bows, crossbows, and ballistae.
Fletching ammo GEMW Calculates the profit/loss from fletching ammo.

Herblore[edit | edit source]

Calculator Format Description
Herb cleaning GEMW Calculates the (potential) profit of cleaning herbs.
Decanting GEMW Calculates the profit of decanting potions.
Unfinished potions GEMW Calculates the costs of making unfinished potions.
Potions GEMW Calculates the costs of making standard potions.

Hunter[edit | edit source]

Magic[edit | edit source]

Calculator Format Description
Enchanting bolts GEMW Calculates the profit of enchanting bolts.
Enchant jewellery GEMW Calculates the profit of enchanting jewellery.
High alchemy GEMW Calculates the profit of casting high level alchemy on various items.

Mining[edit | edit source]

Prayer[edit | edit source]

Calculator Format Description
Bone use GEMW Calculates the costs of buying and using various bones.
Ensouled head GEMW Calculates the costs of buying and using various ensouled heads.

Runecrafting[edit | edit source]

Slayer[edit | edit source]

Smithing[edit | edit source]

Calculator Format Description
Smithing metal bars GEMW Calculates the cost of smithing metal bars.
Smelting metal bars GEMW Calculates the cost of smelting metal bars.

Thieving[edit | edit source]

Woodcutting[edit | edit source]

Others[edit | edit source]

Calculator Format Description
Kingdom management GEMW Helps with the management of the Kingdom of Miscellania.
Plank making GEMW Calculates the profit or loss from turning logs into planks at the sawmill.
Combat level JavaScript Calculates combat level based on combat skills.
Flipping calculator JS Calculates the profit/loss made with flipping.
Long Term Merchanting JS Calculates your cash after merchanting for a set amount of rounds.

Opportunity costs[edit | edit source]

All raw material costs used in the calculators are based on real-time prices from the Grand Exchange Market Watch. This assumes that the player is buying items from the Grand Exchange, even if these items are easily obtainable from alternative locations.

This is due to the fact that using an item as a raw material prevents the player from selling that item on the Grand Exchange, thereby effectively "costing" the player the amount of money they could have sold it for. In business, this concept is called opportunity cost and should be considered when calculating the actual cost using raw materials.

For example:

When prayer potions are made, snape grass is one of the ingredients (raw material) used for making this potion. Snape grass can easily be found on the Hobgoblin peninsula, south-west of the Crafting Guild, which is south-west of Falador, and also on Waterbirth Island. However, the player could sell the snape grass on the Grand Exchange for 64 coins each. So, using it to make Prayer potions has effectively cost them 64 coins for each potion made, even though they got snape grass free.
Furthermore, picking up the snape grass to make the potions will have the opportunity cost of time. This is a very important concept to understand because it will greatly affect your profits. The time you spend picking up snape grass could have been spent on other money-making methods which would be more beneficial. For example, the player could spin flax instead of picking snape grass, then sell the flax and buy more snape grass than they would have been able to pick in the same amount of time.

The same concept applies to any ores mined, or any animal hides collected instead of being bought from the Grand Exchange. This may sound counter-intuitive, but ignoring it distorts the actual cost of making items and gives incorrect figures. That said, while opportunity cost must be considered in a microeconomic cost-benefit model, it is important to note that market forces sometimes make selling the raw materials (also known as "inputs") difficult. It might take a long time, for example, to sell iron ores, but superheating them into iron bars for experience and profit could yield a faster turn-around on the time investment. In a macroeconomic sense, players must evaluate how long they wish to spend, and how much money they have on hand before deciding whether to harvest raw materials themselves, or purchase them outright. Generally, one will save time by purchasing the raw materials, but one must invest more money up-front, and in many instances will not turn a profit. Conversely, it will take one longer to harvest raw materials but the initial investment is much lower (provided, of course, that you are capable of acquiring the raw materials you need in the first place) but in many instances to overall profit potential is higher because you are reducing your input costs.

If you are harvesting your raw materials, simply calculate with a GE price of 0 for whatever you happen to be harvesting on your own. For example:

Raw fish GE Price Cooked fish GE Price Profit/Loss Profit per XP
Raw shrimps.png: Inventory image of Raw shrimpsRaw shrimps 0 Shrimps.png: Inventory image of ShrimpsShrimps 14 14 0.47

If buying the materials,it is possible to make or lose nothing:

Raw fish GE Price Cooked fish GE Price Profit/Loss Profit per XP
Raw shrimps.png: Inventory image of Raw shrimpsRaw shrimps 14 Shrimps.png: Inventory image of ShrimpsShrimps 14 0 0

Or to lose money:

Raw fish GE Price Cooked fish GE Price Profit/Loss Profit per XP
Raw shrimps.png: Inventory image of Raw shrimpsRaw shrimps 28 Shrimps.png: Inventory image of ShrimpsShrimps 14 -14 -0.47

Raw shrimps actually cost 23 on the GE, above prices are examples only.