Final Fantasy I has a total of 64 magic spells, 32 white magic spells and 32 black magic spells. The spells are divided up into 8 levels, with each level consisting of 4 spells. Characters that can use magic can only learn a max of 3 spells per level, so make sure you pick the spells wisely.

The magic system as a whole is set up quite differently then it has in later Final Fantasy games. Your characters don't just learn magic, you have to buy it from magic shops. Once you have bought a spell for a character. Characters can use magic spells as many times as they want to in a battle, there are no mind points in this game like there are in the later ones. The cost of spells is shown in the table bellow:
Spells Prices
Name
Cost
Level 1 100 G
Level 2 400 G
Level 3 1500 G
Level 4 4000 G
Level 5 8000 G
Level 6 20 000 G
Level 7 45 000 G
Level 8 60 000 G

The White Wizard can learn all the white spells and the Black Wizard can learn all the black spells (with the exception that characters can only learn a max of 3 spells per level). Other characters classes can also learn magic, but they can't learn all the way up to level 8 spells like the Wizard's. The table bellow shows what level of magic spells the character classes can learn.

Class
White Magic
Black Magic
Knight Lv 1: Cure, Fog, Ruse
Lv 2: Lamp, Mute, Alit, Invs
Lv 3: Cure 2, Afire
None
Master None None
Ninja None Lv 1: Fire, Sleep, Lock, Lit
Lv 2: Ice, Dark, Tmpr, Slow
Lv 3: Fire 2, Hold, Lit 2, Lock 2
Lv 4: Sleep 2, Fast, Conf, Ice 2
Red
Mage /
Red
Wizard
Lv 1: Cure, Fog, Ruse*
Lv 2: Lamp, Mute, Alit, Invs
Lv 3: Cure 2, Afire
Lv 4: Pure, Aice, Amute*
Lv 5: Cure 3, Life*
Lv 6: Exit*, Fog 2*, Invs 2
Lv 7: Arub*
Lv 1: Fire, Sleep, Lock, Lit
Lv 2: Ice, Dark, Tmpr, Slow
Lv 3: Fire 2, Hold, Lit 2, Lock 2
Lv 4: Sleep 2, Fast, Conf, Ice 2
Lv 5: Fire 3, Bane*, Warp*, Slow 2*
Lv 6: Lit 3*
White
Mage /
White
Wizard
Lv 1: Cure, Harm, Fog, Ruse
Lv 2: Lamp, Mute, Alit, Invs
Lv 3: Cure 2, Harm 2, Afire, Heal
Lv 4: Pure, Fear, Aice, Amute
Lv 5: Cure 3, Life, Harm 3, Heal 2
Lv 6: Soft, Exit*, Fog 2, Invs 2
Lv 7: Cure 4*,Harm 4*,Arub,Heal 3
Lv 8: Fade*, Wall*, Xfer*, Life 2*
None
Black
Mage /
Black
Wizard
None Lv 1: Fire, Sleep, Lock, Lit
Lv 2: Ice, Dark, Tmpr, Slow
Lv 3: Fire 2, Hold, Lit 2, Lock 2
Lv 4: Sleep 2, Fast, Conf, Ice 2
Lv 5: Fire 3, Bane, Warp, Slow 2
Lv 6: Lit 3, Rub, Quake, Stun
Lv 7: Ice 3, Break*, Sabr*, Blind
Lv 8: Stop*, Zap!*, XXXX*, Nuke*

Note: The Fighter and the Thief cannot use magic, they first have to be upgraded to the Knight and the Ninja. The * represents a spell that the character class can only use once it has been upgraded.