Weight

The weight of items in RuneScape refers to how heavy they are, and is measured in kilograms (kg). Every item has a weight, although it may be zero (for example, stackable items) or even negative, such as the boots of lightness.

Players can see the total weight of the items they are carrying on the Equipment Stats screen from the Worn Equipment interface. This will include items they have equipped as well as those carried in the inventory. Many nonstackable items weigh fractions of a kilogram, but the Equipment Stats screen truncates (does not show the decimal portion), so these may appear as zero even though they have some slight weight.

Effects of weight
Carrying more weight causes energy to decrease more quickly, and a higher Agility level will cause energy to recover at a higher rate, Each Agility level above 1 that a player has seems to reduce the time required to regenerate energy back to 100% by 1 second. For example, a player with 70 Agility can fully regenerate run energy to 100% after about 1 minute 47 seconds while a player with 90 Agility can fully regenerate to 100% in 1 minute 27 seconds. Players who undertake activities requiring a lot of running around would be well advised to minimise the total weight they carry while doing so, since they will be able to run for longer. However, having negative weight has the same effect as being 0 kg.

Some activities in RuneScape require players to weigh no more/no less than a certain amount. For example, whilst doing the Pirate Pete part of the Recipe for Disaster quest, players must be carrying no more than 27 kg to dive off Port Khazard. In the quest Temple of Ikov, players must weigh less than 0 kg to cross a bridge, this is just after having received the boots of lightness. Also, in order to use the Balloon transport system, players must be carrying less than 40 kg. To get into Movario's base (during and after While Guthix Sleeps) you need to weigh more than 1 kg.

Weight limits
There is a four way tie for the heaviest item in RuneScape. A Barrel of naphtha, Steel girders a Stone slab, and Big rock weighing 32 kgs each. Filling an entire inventory up with stone slabs, or barrels of naptha increases the total inventory weight to 896 kg. You can only have 1 big rock, therefore you cannot fill your inventory with it.

The lowest weight that any player in RuneScape can have is -40.8 kg. To obtain this weight, the following items need to be equipped: Gold athlete's hat -1.3kg, Agile top -12 kg, Agile legs -10 kg, Boots of lightness -4.5 kg, Wicked cape -6 kg, and Penance gloves -7.0 kg.

Greatest weight

 * {| class="wikitable"

! Slot !! Image !! Item !! Weight (kg)
 * Headwear || Gold helmet.png || Gold helmet || align=center | 31.7
 * Cape || Diving apparatus.png || Diving apparatus || align=center | 10
 * Neckwear || Seal of passage.png || Seal of Passage || align=center | 4.5
 * Ammunition || || - || align=center |
 * Weapon || Barrelchest anchor.png || Barrelchest anchor || align=center | 30*
 * Body || Granite body.png || Granite body ||align=center | 22
 * Shield || || - || align=center |
 * Legwear || Granite legs.png || Granite legs || align=center | 15
 * Hand || Golden mining gloves.png || Golden mining gloves || align=center | 3
 * Footwear || Bandos boots.png || Bandos boots || align=center | 6
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Barrel of naphtha.png Stone slab.png || 28 × Barrels of naphtha or Stone slabs || align=center | 896
 * colspan=3 | Total weight || align=center | 1017.9
 * }
 * Legwear || Granite legs.png || Granite legs || align=center | 15
 * Hand || Golden mining gloves.png || Golden mining gloves || align=center | 3
 * Footwear || Bandos boots.png || Bandos boots || align=center | 6
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Barrel of naphtha.png Stone slab.png || 28 × Barrels of naphtha or Stone slabs || align=center | 896
 * colspan=3 | Total weight || align=center | 1017.9
 * }
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Barrel of naphtha.png Stone slab.png || 28 × Barrels of naphtha or Stone slabs || align=center | 896
 * colspan=3 | Total weight || align=center | 1017.9
 * }
 * colspan=3 | Total weight || align=center | 1017.9
 * }

Note: The Barrelchest anchor can be substituted with the Stone of Power from the Fist of Guthix activity. The Barrelchest anchor is a 2-handed weapon, therefore the Shield slot will be empty. * Barrelchest anchor can be substituted with Crate with zanik or Ana in a barrel. Both of these weighs 2 kgs more however these items are only available during Death to the Dorgeshuun and The Tourist Trap respectively.

Greatest weight (free player)

 * {| class="wikitable"

! Slot !! Image !! Item !! Weight (kg) ! colspan=3 | Total weight !! 354.430
 * Headwear || Adamant full helm.png || Adamant full helm || align=center | 3.175
 * Cape || Cape (yellow).png || Any F2P cape. || align=center | 0.453
 * Neckwear || Ice amulet.png || Ice amulet || align=center | 0.050
 * Ammunition || || || align=center |
 * Weapon || [[File:Adamant battleaxe.png]] || Adamant battleaxe || align=center | 3.175
 * Body || Adamant platebody.png || Adamant platebody ||align=center | 11.339
 * Shield || Adamant berserker shield.png || Adamant berserker shield || align=center | 7
 * Legwear || Adamant platelegs.png || Adamant platelegs || align=center | 10.432
 * Hand || Batwing gloves.png || Batwing gloves || align=center | 0.453
 * Footwear || Leather boots.png || Leather boots || align=center | 0.3
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Adamant platebody.png || 27 × Adamant platebody || align=center | 306.153
 * Inventory || Baby troll.png || Baby troll || align=center | 11.500
 * Shield || Adamant berserker shield.png || Adamant berserker shield || align=center | 7
 * Legwear || Adamant platelegs.png || Adamant platelegs || align=center | 10.432
 * Hand || Batwing gloves.png || Batwing gloves || align=center | 0.453
 * Footwear || Leather boots.png || Leather boots || align=center | 0.3
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Adamant platebody.png || 27 × Adamant platebody || align=center | 306.153
 * Inventory || Baby troll.png || Baby troll || align=center | 11.500
 * Ring || Victor's_bronze_ring.png || Victor's bronze ring || align=center | 0.4
 * Inventory || Adamant platebody.png || 27 × Adamant platebody || align=center | 306.153
 * Inventory || Baby troll.png || Baby troll || align=center | 11.500
 * Inventory || Adamant platebody.png || 27 × Adamant platebody || align=center | 306.153
 * Inventory || Baby troll.png || Baby troll || align=center | 11.500
 * Inventory || Baby troll.png || Baby troll || align=center | 11.500
 * }

Lowest weight (members)

 * {|class="wikitable"

!Slot !Image !Item !Weight (kg) !colspan="3"|Total weight ! -40.8
 * Footwear
 * Boots of lightness.png
 * Boots of lightness
 * align="center"| -4.5
 * Hand
 * Penance gloves.png
 * Penance gloves
 * align="center"| -7
 * Cape
 * Wicked cape.png
 * Wicked cape
 * align="center"| -6
 * Legs
 * Agile legs.png
 * Agile legs
 * align="center"| -10
 * Body
 * Agile top.png
 * Agile top
 * align="center"| -12
 * Head
 * Gold athlete's hat.png
 * Gold athlete's hat
 * align="center"| -1.3
 * align="center"| -12
 * Head
 * Gold athlete's hat.png
 * Gold athlete's hat
 * align="center"| -1.3
 * align="center"| -1.3
 * }

Note: The lowest weight free players can achieve is -4 kg by wearing Silver athlete's hat, Silver athlete's shirt, Silver athlete's gloves, Silver athlete's legs, and Silver athlete's shoes. A small number of free items are with zero weight but some of them are with "fake" zero weight, that will increase energy loss rate while running even if the equipment screen shows 0 kg otherwise.

Another note: There used to be a bug where the Wicked cape would give -6 kg to weight, even if it was in the inventory. Theoretically, an inventory filled with wicked capes would grant an extremely low weight. This bug has been fixed.

Trivia

 * Processing many of the items changes the weight of them not according to the real world, for example: an inventory of 14 bowstrings and 14 yew longbows (u) weighs 7 kg more than their combined product of 14 yew longbows (actual stringing of a bow would reduce little to no weight), however some cases follow an actual model, like a steel platebody weighs less than the five steel bars used to make it, as scrap metal is disposed in smithing armour.
 * Sometimes RuneScape item weights are unrealistic - for example, the cannonball, which is stackable, weighs 0 kg, when one would expect it to be quite heavy. This is presumably so that the Dwarf multicannon is easier to use. There is also another rather amusing factor - no matter how many Coins you carry in your inventory - which can be great in amount - you can never increase your weight, which will stay the same. However, this could be due to the very inherent magical nature of Gielinor itself, or just a measure of exchanging cash into convenient forms like cheques in real world.
 * There once was a glitch that activated weight-lowering items without having to wear them. A player could have a full inventory of spottier capes and weigh about -126 kg. The glitch is now fixed.
 * Once a group of armour components are compressed as a set at the Grand Exchange, the set weighs 0 kg, instead of the combined weight of the individual pieces. This could be because of the fact that a compressed set acts like a note containing all the items of the set.

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