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
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.