OSRS Drop Calculator › Water rune

Best way to farm Water rune

All 134 monsters that drop Water rune, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 6 other sources aren’t ranked; see why below.

Drop data: Water rune on the OSRS Wiki

Currently fastest method
Narwhal
12,692 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Narwhal
Combat lvl 111
15/60 · 300–800
 137.5 39 92 12,692
Eldric the Ice King
Combat lvl 350
2/56 · 1,500–3,000 (2 rolls)
 160.7 83 43 6,971
Dolphin
Combat lvl 22
15/50 · 50–80
 19.5 13 277 5,400
Kraken
Combat lvl 291 · Slayer 87
10/128 · 400
 31.25 32 112 3,516
Araxyte (Level 146)
Combat lvl 146 · Slayer 92
10/127 · 240–280
 20.47 21 171 3,509
Water wizard
Combat lvl 13
19/20 · 5–10
 7.12 8 450 3,206
Vampyre kraken
Combat lvl 211
10/120 · 500–750
 52.08 60 60 3,125
Armoured kraken
Combat lvl 180
10/119 · 400–650
 44.12 55 65 2,888
Spined kraken
Combat lvl 128
10/109 · 250–400
 29.82 38 95 2,825
Araxyte (Level 96)
Combat lvl 96 · Slayer 92
10/127 · 120–140
 10.24 15 240 2,457
Amoxliatl (Post-quest)
Slayer 48
5/58 · 200–400 (2 rolls)
 51.72 80 45 2,328
Frost dragon
Combat lvl 202
10/130 · 100–200
5/130 · 500
 30.77 52 69 2,130
Aquanite
Combat lvl 145 · Slayer 78
10/128 · 150–350
 19.53 36 100 1,953
Veiled kraken
Combat lvl 210
10/272 · 500–750
 22.98 44 82 1,880
Lobstrosity
Combat lvl 68
8/118 · 100
 6.78 13 277 1,877
Pygmy kraken
Combat lvl 93
10/108 · 100–150
 11.57 33 109 1,263
Frost Nagua
Combat lvl 104 · Slayer 48
~3/34 · 10–30
~3/34 · 30–100
 7.5 25 144 1,080
Green dragon (Regular)
Combat lvl 79
8/128 · 75
 4.69 19 189 888
Waterfiend
Combat lvl 115
Always · 1
6/128 · 150
 8.03 34 106 850
Basilisk
Combat lvl 61 · Slayer 40
8/128 · 75
 4.69 20 180 844
Terror dog (Level 100)
Combat lvl 100 · Slayer 40
8/128 · 75
 4.69 20 180 844
Terror dog (Level 110)
Combat lvl 110 · Slayer 40
8/128 · 75
 4.69 21 171 804
Water elemental
Combat lvl 34
13/128 · 15
3/128 · 20
 1.99 9 400 797
Paladin
Combat lvl 62
13/128 · 30
 3.05 15 240 731
Sir Carl
Combat lvl 62
13/128 · 30
 3.05 15 240 731

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. They’re all superior slayer monsters: they only appear randomly (~1 in 200 kills) while you’re on a slayer task.

Monster Drops (rarity · quantity) Avg/kill
Dreadborn Araxyte
Combat lvl 281 · Slayer 92
10/127 · 240–280 (3 rolls)
 61.42
Elder aquanite
Combat lvl 305 · Slayer 78
~1/13 · 150–350 (3 rolls)
 57.69
Colossal Hydra
Combat lvl 309 · Slayer 95
9/128 · 70–90 (3 rolls)
 16.88
Monstrous basilisk
Combat lvl 135 · Slayer 40
8/128 · 75 (3 rolls)
 14.06
Malevolent Mage
Combat lvl 162 · Slayer 45
3/128 · 10 (3 rolls)
2/128 · 18 (3 rolls)
 1.55
Cockathrice
Combat lvl 89 · Slayer 25
2/128 · 2 (3 rolls)
 0.094
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as rarity × average quantity × rolls — so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.

Something wrong on this page?

Drop rates come from the OSRS Wiki and kill times are estimates, so mistakes happen. Tell us what's off and it'll be looked at.