Fire Bolt is the second weakest fire spell available in the standard spellbook. This spell requires three air runes, four fire runes, and one chaos rune to cast. Without boosts, the maximum damage of this spell is 12.

Players who have completed the Family Crest quest can wear Chaos gauntlets, which will increase the maximum damage of this spell to 15 (1 less than Fire Blast), and wearing an Occult necklace the gauntlets would make 16, thus tying Fire Blast. Wielding Staff of the dead and the gauntlets would make it hit 17. If you use Staff of the dead with Occult necklace, you are able to hit 18. Also, with Staff of the dead, Slayer helmet (i) and Occult necklace, 20 is achievable on slayer tasks.

Gear items Max hit
Chaos gauntlets.png 15
Chaos gauntlets.png + Occult necklace.png 16
Chaos gauntlets.png + Staff of the dead.png 17
Chaos gauntlets.png + Occult necklace.png + Staff of the dead.png 18
Chaos gauntlets.png + Occult necklace.png + Staff of the dead.png + Slayer helmet (i).png 20
Chaos gauntlets.png + Occult necklace.png + Staff of the dead.png + Slayer helmet (i).png + Ancestral robe top.png + Ancestral robe bottom.png + Imbued saradomin cape.png or Imbued zamorak cape.png or Imbued guthix cape.png 21
Chaos gauntlets.png + Occult necklace.png + Staff of the dead.png + Slayer helmet (i).png + Ancestral robe top.png + Ancestral robe bottom.png + Tome of fire.png + Imbued saradomin cape.png or Imbued zamorak cape.png or Imbued guthix cape.png 31

Tome of fire boost the original amount of damage by 50%. The maximum amount of damage a mid-level account can do with chaos gauntlets and Tome of fire is 22. Adding in Occult, boosts it to 24, Staff of the dead boosts it to 25. Using both Staff of the dead and Occult makes it a 27. If you add in the Ancestral robes set bonus you can push Fire Bolt to 28. All of that on top of the Slayer helm (i) would make your max hit a 31 on slayer targets.

The Magic experience gained depends on the damage dealt. The amount of experience increases by 2 for each additional damage dealt as shown on the table below.

Damage Exp
0 22.5
1 24.5
2 26.5
3 28.5
4 30.5
5 32.5
6 34.5
7 36.5
8 38.5
9 40.5
10 42.5
11 44.5
12 46.5
13 [1] 48.5
14 [1] 50.5
15 [1] 52.5
16 [2] 54.5
17 [3] 56.5
18 [3] 58.5
31 84.5

Cost

Spell cost
InputCost
4Fire rune.png3Air rune.png1Chaos rune.png124
Combo runes
4Fire rune.png1Chaos rune.png3Dust rune.png121
3Air rune.png1Chaos rune.png4Lava rune.png120
1Chaos rune.png4Smoke rune.png373
3Air rune.png1Chaos rune.png4Steam rune.png376
4Fire rune.png1Chaos rune.png3Mist rune.png595
Staves
4Fire rune.png1Chaos rune.pngStaff of air.png109
4Fire rune.png1Chaos rune.pngMist battlestaff.png109
4Fire rune.png1Chaos rune.pngDust battlestaff.png109
3Air rune.png1Chaos rune.pngTome of fire.png104
1Chaos rune.pngStaff of air.pngTome of fire.png89
3Air rune.png1Chaos rune.pngLava battlestaff.png104
3Air rune.png1Chaos rune.pngSteam battlestaff.png104
1Chaos rune.pngMist battlestaff.pngTome of fire.png89
1Chaos rune.pngDust battlestaff.pngTome of fire.png89
3Air rune.png1Chaos rune.pngStaff of fire.png104
1Chaos rune.pngSmoke battlestaff.png89
  1. 1.0 1.1 1.2 Chaos gauntlets must be worn.
  2. In addition to Chaos gauntlets, the Occult necklace must also be worn.
  3. 3.0 3.1 in addition to Chaos gauntlets and Occult necklace player must use smoke battlestaff
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