Calculators

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

Agility

Calculator	Format	Description
Agility	JavaScript	Calculates the number of laps that must be completed to get from a given level or amount of experience to your selected goal.
Agility Arena Tickets	JavaScript	Calculates the experience from spending Brimhaven Agility Arena tickets.

Construction

Calculator	Format	Description
Construction	JavaScript	Calculates the number of construction items needed to be built from a given level or amount of experience to your selected goal.
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

Calculator	Format	Description
Cooking	JavaScript	Calculates the number of food items needed to be cooked from a given level or amount of experience to your selected goal.
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 ingredients and putting them together and cooking the pizza.
Cooking potatoes	GEMW	Calculates the profit/loss from preparing potatoes, assuming all ingredients are bought.

Crafting

Calculator	Format	Description
Crafting	JavaScript	Calculates how many crafted items are needed from a given level or amount of experience to your selected goal.
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 ranged 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.
Crushed gems	JavaScript	Calculates the chance of crushing semi-precious gems while crafting.
Tanning hides	GEMW	Calculates the profit/loss per hide tanned.
Cutting Amethyst	GEMW	Calculates the profit/loss per amethyst.

Farming

Calculator	Format	Description
Farming	JavaScript	Calculates the number of farming crops required from a given level or amount of experience to your selected goal.
Herbs	JavaScript	Calculates the profit and exp/gold for growing herbs
Supercompost profit	JavaScript	Calculates the profit/loss from creating supercompost in both regular compost bins and the big compost bin.
Trees	GEMW	Calculates the exp/gp cost/profit for growing trees
Saplings	GEMW	Calculates the gp cost/profit for making saplings

Firemaking

Calculator	Format	Description
Firemaking	JavaScript	Calculates the number of logs to be burnt from a given level or amount of experience to your selected goal.
Burning Logs	GEMW	Calculates the cost per XP for burning logs.
Wintertodt attacks	JavaScript	Calculates the standard, brazier and area attacks values

Fishing

Calculator	Format	Description
Fishing	JavaScript	Calculates the number of fish needed from a given level or amount of experience to your selected goal.
Aerial fishing	JavaScript	Estimates the XP/Hour of the Aerial fishing Hunter/Fishing training method.
Barbarian Fishing	JavaScript	Estimated the XP/Hour and success rate of Barbarian Fishing training method.
Molch pearls	JavaScript	A small calculator for the molch pearl page that gives the pearl chance per fish at given Hunter and Fishing levels.
Clue bottles	JavaScript	Calculate the chance of receiving any given tier of clue bottle from different types of fish.

Fletching

Calculator	Format	Description
Fletching	JavaScript	Calculates the number of fletched items needed from a given level or amount of experience to your selected goal.
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

Calculator	Format	Description
Herblore	JavaScript	Calculates the number of materials needed from a given level or amount of experience to your selected goal.
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

Calculator	Format	Description
Hunter	JavaScript	Calculates the number of hunted creatures needed from a given level or amount of experience to your selected goal.
Chinchompa success	JavaScript	Calculates the chance of catching a chinchompa.
Herbiboar	JavaScript	Calculates the loot from catching herbiboars and how many to catch to reach a certain level.

Magic

Calculator	Format	Description
Magic	JavaScript	Calculates the number of spells needed from a given level or amount of experience to your selected goal.
Enchantment	GEMW	Calculates the profit of enchanting jewellery, bolts and orbs, while wielding the most efficient elemental staff.
Enchanting bolts	GEMW	Calculates the profit of enchanting bolts.
Enchanting jewellery	GEMW	Calculates the profit of enchanting jewellery.
High alchemy	GEMW	Calculates the profit of casting high level alchemy on various items.
Magic Dart	JavaScript	Calculates the max hit of the Magic Dart spell.
Making tablets	GEMW	Calculates the profit of making magic tablets at a lectern in a player-owned house.
Powered staves	JavaScript	Calculates the max hit of powered staves.

Mining

Calculator	Format	Description
Mining	JavaScript	Calculates the number of ores mined from a given level or amount of experience to your selected goal.
Clue geodes	JavaScript	Calculate the chance of receiving any given tier of clue geode from different types of rocks.

Prayer

Calculator	Format	Description
Prayer	JavaScript	Calculates the number of bones or ensouled heads required from a given level or amount of experience to your selected goal.
Prayer drain	JavaScript	Calculates the rate of prayer drain given a prayer bonus and selected prayers.
Prayer point cost	JavaScript	Calculates the cost per prayer point restored for each consumable used in Prayer based on both the player's Prayer level and the current Grand Exchange prices.
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.
Blessed bone shards	JavaScript	Calculates the costs of creating and using blessed bone shards on the libation bowl.

Runecraft

Calculator	Format	Description
Runecraft	JavaScript	Calculates the number of runecrafted items from a given level or amount of experience to your selected goal.
Abyssal pearls	JavaScript	Calculates the number of Rewards guardian searches to reach a specific number of pearls
ZMI	JavaScript	Calculates the expected time and essence required from a given level or amount of experience to your selected goal at the Ourania Altar.

Slayer

Calculator	Format	Description
Slayer Assignment Percentages	JavaScript	Gives percentages for tasks from Slayer masters based on stats and quests.
Slayer Master Comparison	JavaScript	Calculates the likelihood of getting a specific Slayer task from each master.

Smithing

Calculator	Format	Description
Smithing	JavaScript	Calculates the number of ores and bars smithed from a given level or amount of experience to your selected goal.
Giants' Foundry	JavaScript	Calculates the number of swords and their materials needed to reach a level, experience or reputation goal.
Giants' Foundry quality experience	JavaScript	Calculates the experience earned from turning in different quality swords in Giants' Foundry.
Smithing metal bars	GEMW	Calculates the cost of smithing metal bars.
Smelting metal bars	GEMW	Calculates the cost of smelting metal bars.
Smithing & High Alchemy	GEMW	Calculates the profit of casting High Level Alchemy on the smithed items.

Strength

Calculator	Format	Description
Shot put	JavaScript	Calculates the success rate, distance, token reward, run energy cost and experience reward for the Warriors' Guild Shot put range.

Thieving

Calculator	Format	Description
Thieving	JavaScript	Calculates the number of stolen goods from a given level or amount of experience to your selected goal.
Master farmer success	JavaScript	Calculates the success rate of master farmer pickpocketing.

Woodcutting

Calculator	Format	Description
Woodcutting	JavaScript	Calculates the number of cut logs required from a given level or amount of experience to your selected goal.
Clue nests	JavaScript	Calculate the chance of receiving any given tier of clue nest from different types of trees.

Others

Calculator	Format	Description
Ammo cost efficiency	JavaScript	Calculates how cost efficient upgrading your ammo is.
Arceuus Library Books	JavaScript	Calculates how many books of arcane knowledge from the Arceuus Library are needed to reach a target level or target XP.
Barrows reward	JavaScript	Calculates the expected rewards of Barrows minigame.
Barrows item repair	JavaScript	Calculates the cost to repair Barrows equipment.
Chambers of Xeric loot	JavaScript	Calculates the expected rewards of doing the Chambers of Xeric.
Combat level	JavaScript	Calculates combat level based on combat skills.
DPS Calculator	JavaScript	Calculates the player's damage per second based on various inputs.
Dry calculator	JavaScript	Calculates the chance of obtaining a drop based on how many kills are entered compared to a drop rate entered in.
Flipping calculator	JavaScript	Calculates the profit/loss made with flipping.
Genie lamps and books of knowledge	JavaScript	Calculates how many lamps or books of knowledge are needed to get to the target level or target XP.
Kingdom Profit	JavaScript	Calculates the profit or loss from managing the Kingdom of Miscellania.
Plank making	GEMW	Calculates the profit or loss from turning logs into planks at the sawmill.
Shop calculator	Javascript	Calculates profit or cost of buying or selling from shops.
Skill pet chance	JavaScript	Calculates the base chance for each method for a pet chosen. Takes in an actions per hour input to adjust the chance in an hour.
Soul Wars Rewards	GEMW	Calculates GP/zeal earnings if you buy blighted items with your Zeal Tokens and resell them on the Grand Exchange.
Swimming experience rates	JavaScript	Calculates how long it takes to reach a target level and compares it to the most efficient methods.
Teleportation jewellery	GEMW	Calculates the cost-per-teleport of using jewellery.
Tempoross reward pool	GEMW	Calculates the drop table of a single Tempoross reward pool permit.
Theatre of Blood loot	JavaScript	Calculates the expected rewards of doing the Theatre of Blood.
Tombs of Amascut loot	JavaScript	Calculates the expected rewards of doing the Tombs of Amascut.
Training manuals	JavaScript	Calculates how many training manuals from tackling organised crime are needed to reach a target level.
Wintertodt supply crate	JavaScript	Calculates the expected rewards from a Wintertodt supply crate.

Opportunity costs

See also: Efficiency

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 2,177 coins each. So, using it to make Prayer potions has effectively cost them 2,177 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/XP
	Raw shrimps	0		Shrimps	5	5	0.17

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

Raw fish		GE Price	Cooked fish		GE Price	Profit/Loss	Profit/XP
	Raw shrimps	5		Shrimps	5	0	0

Or to lose money:

Raw fish		GE Price	Cooked fish		GE Price	Profit/Loss	Profit/XP
	Raw shrimps	10		Shrimps	5	−5	-0.17

Raw shrimps actually cost 11 on the GE, above prices are examples only.