Smithing/Training
This page was last updated for (v1.1.2). 
Training
Maximum XP
Make items that use the most bars, usually Platebodies if they are unlocked. Stop on Rune Platebody and make it until Level 99.
The table below shows how many bars you need to smelt and then use to create items with in order to reach the next threshold. The XP per bar used is the same for all recipes using that particular type of bar, and so to maximize XP gain the recipe chosen should always be the one that uses the most bars per action. Steel Bars are skipped because it triples Mining time, and you're likely to overmine something with such short timings. Adamantite Bars are skipped because you will miss Mastery bonuses for Mithril and Runite otherwise. The numbers below are without XP bonuses, except for the Smithing Gloves. With bonuses, the number of required bars is lower.
Details 

The number of bars was calculated by using the "Melvor Idle Rate & Resource Calculator" by Kidbiz20 from Spreadsheets and Theorycrafting and then adjusting the number from the column "Resources to Level X" by the fact that we account for the XP from the bars that are need for the items. For instance, to go from level 40 to 55, you need 2,589 Mithril Bars if you craft items. If you account for the XP from the required bars then it's [math]\displaystyle{ x\times 50 + x\times35 = 2589\times 50 }[/math], 
Level  Item  Quantity Required  

Without Gloves  With Gloves  
110  Bronze Bar  78  49 
1030  Iron Bar  437  274 
3040  Silver Bar  1,591  995 
4070  Mithril Bar  8,241  5,151 
7099  Runite Bar  98,375  61,485 
Useful Items
The idea of this method is to create items that you will use to buy things or to level other skills. This is considerably slower for just Smithing, but should save time in the long run.
The table below provides notable examples where the bars can be used. For Summoning in particular, various tablet recipes make use of Bars, Daggers, Battleaxes, and Shields.
Level  Bars  Used where  How many 

110  Bronze  Basic Furnace Basic Pot 
900 
1030  Steel  Strong Furnace Strong Pot 
1,800 
3040  Silver  Upgrading  7,700+ 
4055  Gold  Upgrading  7,700+ 
4099  Mithril Adamant Rune Dragon 
Summoning  Varies 
Boosters
XP
Source  Type  XP Boost  Other Modifiers 

Pit Jump  Agility Obstacle 3  +3% Global Skill XP  4% Agility Skill XP 
Tree Climb  Agility Obstacle 5  +4% Global Skill XP  10% Ammo Preservation 10% Chance to Preserve Resources in Skills 10% Rune Preservation +3% Global Mastery XP 
A Lovely Jog  Agility Obstacle 8  +5% Global Skill XP  6% Global Mastery XP 
Iridan  Constellation  +8% Smithing Skill XP  5% Smithing Interval +8% Chance to Double Items in Smithing +8% Accuracy Rating +5 Hidden Attack Level +8% Smithing Mastery XP +5% of Maximum Hit added to Minimum Hit +8% Attack Skill XP 
Blacksmiths Boots  Item (Boots)  +2% Smithing Skill XP  
Skillers Boots  Item (Boots)  +2% nonCombat Skill XP  
Cape of Completion  Item (Cape)  +5% Global Skill XP  Bypass Slayer Area item requirements for areas that require less than level 100 Slayer 20% Agility Obstacle Build Costs 50% Prayer Point Cost for Prayers (Prayer Point cost cannot go below 1) 0.5s Thieving Interval 0.5s Crafting Interval 15% Woodcutting Interval 15% Cooking Interval 50% Coal Costs for Smithing 15% Township Building Cost (Does not affect GP cost. Capped at 80%) x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore Create +5 Additional Runes of the same type in Runecrafting +50% Ammo Preservation +1 to base drop quantity of Stardust and Golden Stardust from Astrology +1 Coal Ore per Ore Mined. (Item doubling does not apply) +100% chance to receive Ash per log burnt in Firemaking +2% Global Perfect Cook chance +100% chance to successfully Cook an item +15% Chance to Double Items in Runecrafting +5% Damage To Slayer Tasks +25% Farming Yield +100% chance to receive coal when burning logs in Firemaking +10% GP From Agility +100% GP From Thieving +10 Flat Hitpoints Regeneration +25% Mastery Pool XP Cap Items that reduce Rune costs are now 2x as effective +20% Chance to Preserve Resources in Summoning +25% Flat Slayer Area Effect Negation +10% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +150 Stealth while Thieving 
Firemaking Skillcape  Item (Cape)  +5% Global Skill XP  +100% chance to receive Ash per log burnt in Firemaking +100% chance to receive coal when burning logs in Firemaking 
Maximum Skillcape  Item (Cape)  +5% Global Skill XP  Bypass Slayer Area item requirements for areas that require less than level 100 Slayer 20% Agility Obstacle Build Costs 50% Prayer Point Cost for Prayers (Prayer Point cost cannot go below 1) 0.5s Thieving Interval 0.5s Crafting Interval 15% Woodcutting Interval 15% Cooking Interval 50% Coal Costs for Smithing 15% Township Building Cost (Does not affect GP cost. Capped at 80%) x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore Create +5 Additional Runes of the same type in Runecrafting +50% Ammo Preservation +1 to base drop quantity of Stardust and Golden Stardust from Astrology +1 Coal Ore per Ore Mined. (Item doubling does not apply) +100% chance to receive Ash per log burnt in Firemaking +2% Global Perfect Cook chance +100% chance to successfully Cook an item +15% Chance to Double Items in Runecrafting +5% Damage To Slayer Tasks +25% Farming Yield +100% chance to receive coal when burning logs in Firemaking +10% GP From Agility +100% GP From Thieving +10 Flat Hitpoints Regeneration Items that reduce Rune costs are now 2x as effective +20% Chance to Preserve Resources in Summoning +25% Flat Slayer Area Effect Negation +10% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +150 Stealth while Thieving 
Superior Cape of Completion  Item (Cape)  +8% Global Skill XP  Bypass All Slayer Area item requirements 30% Agility Obstacle Build Costs 20% Agility Pillar build costs 75% Prayer Point Cost for Prayers (Prayer Point cost cannot go below 1) 0.8s Thieving Interval 0.8s Crafting Interval 20% Woodcutting Interval 25% Cooking Interval 10% Summoning Interval 10% Astrology Interval 75% Coal Costs for Smithing 20% Township Building Cost (Does not affect GP cost. Capped at 80%) x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore Create +8 Additional Runes of the same type in Runecrafting +75% Ammo Preservation +2 to base drop quantity of Stardust and Golden Stardust from Astrology +1 Bolts produced per action in Fletching +2 Coal Ore per Ore Mined. (Item doubling does not apply) +50% Chance to gain +1 additional bar in Smithing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fishing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fletching (Cannot be doubled) +15% Chance to gain +1 additional resource in Crafting (Cannot be doubled) +100% Chance to gain +1 additional resource in Herblore (Cannot be doubled) +20% Chance to Double Farming Yield +100% chance to receive Ash per log burnt in Firemaking +100% chance to receive Charcoal per burn in Firemaking +4% Global Perfect Cook chance +100% chance to successfully Cook an item +20% chance to avoid the stun interval and stun damage in Thieving when pickpocket attempt fails +25% Chance to Double Items in Runecrafting +1% chance to find a Lost Chest while Fishing (This is separate to the Special Fishing Chance) +5% Chance to Preserve Food when eaten +5% Chance To Preserve Potion Charge +5% Chance To Preserve Prayer Points +8% Damage To Slayer Tasks +40% Farming Yield +100% chance to receive coal when burning logs in Firemaking +20% GP From Agility +150% GP From Thieving +5% Chance to find gem veins when Mining +15 Flat Hitpoints Regeneration +5% Lifesteal +5% Magic Damage Bonus from Equipment +5% Melee Strength Bonus from Equipment +1 minimum Bird Nest's received from Woodcutting +5% of Maximum Hit added to Minimum Hit +5% Ranged Strength Bonus from Equipment +5% Reflect Damage +10% Rune Preservation Items that reduce Rune costs are now 4x as effective +25% Chance to Preserve Resources in Summoning +35% Flat Slayer Area Effect Negation +10% Slayer Coins +15% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +10% Summoning Maximum Hit +270 Stealth while Thieving 
Superior Firemaking Skillcape  Item (Cape)  +8% Global Skill XP  +100% chance to receive Ash per log burnt in Firemaking +100% chance to receive Charcoal per burn in Firemaking +100% chance to receive coal when burning logs in Firemaking 
Superior Max Skillcape  Item (Cape)  +8% Global Skill XP  Bypass All Slayer Area item requirements 30% Agility Obstacle Build Costs 20% Agility Pillar build costs 75% Prayer Point Cost for Prayers (Prayer Point cost cannot go below 1) 0.8s Thieving Interval 0.8s Crafting Interval 20% Woodcutting Interval 25% Cooking Interval 10% Summoning Interval 10% Astrology Interval 75% Coal Costs for Smithing 20% Township Building Cost (Does not affect GP cost. Capped at 80%) x2 Items received from Fishing x2 Items received from Fletching x2 Items received from Herblore Create +8 Additional Runes of the same type in Runecrafting +75% Ammo Preservation +2 to base drop quantity of Stardust and Golden Stardust from Astrology +1 Bolts produced per action in Fletching +2 Coal Ore per Ore Mined. (Item doubling does not apply) +50% Chance to gain +1 additional bar in Smithing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fishing (Cannot be doubled) +100% Chance to gain +1 additional resource in Fletching (Cannot be doubled) +15% Chance to gain +1 additional resource in Crafting (Cannot be doubled) +100% Chance to gain +1 additional resource in Herblore (Cannot be doubled) +20% Chance to Double Farming Yield +100% chance to receive Ash per log burnt in Firemaking +100% chance to receive Charcoal per burn in Firemaking +4% Global Perfect Cook chance +100% chance to successfully Cook an item +20% chance to avoid the stun interval and stun damage in Thieving when pickpocket attempt fails +25% Chance to Double Items in Runecrafting +1% chance to find a Lost Chest while Fishing (This is separate to the Special Fishing Chance) +5% Chance to Preserve Food when eaten +5% Chance To Preserve Potion Charge +5% Chance To Preserve Prayer Points +8% Damage To Slayer Tasks +40% Farming Yield +100% chance to receive coal when burning logs in Firemaking +20% GP From Agility +150% GP From Thieving +5% Chance to find gem veins when Mining +15 Flat Hitpoints Regeneration +5% Lifesteal +5% Magic Damage Bonus from Equipment +5% Melee Strength Bonus from Equipment +1 minimum Bird Nest's received from Woodcutting +5% of Maximum Hit added to Minimum Hit +5% Ranged Strength Bonus from Equipment +5% Reflect Damage +10% Rune Preservation Items that reduce Rune costs are now 4x as effective +25% Chance to Preserve Resources in Summoning +35% Flat Slayer Area Effect Negation +10% Slayer Coins +15% Chance to preserve Summoning Charges +10 Base Quantity for Summoning Tablet Creation +10% Summoning Maximum Hit +270 Stealth while Thieving 
Ancient Magic Hammer  Item (Consumable)  +5% Smithing Skill XP  0.2s Smithing Interval +5% Smithing Mastery XP 
Candelabra (Lit)  Item (Consumable)  +4% nonCombat Skill XP  3% Interval for all nonCombat Skills +4% Global Mastery XP +3% Chance to Preserve Resources in Skills 
Blacksmiths Gloves  Item (Gloves)  +75% Smithing Skill XP  0.1s Smithing Interval +3% Smithing Mastery XP 
Blacksmiths Hat  Item (Helmet)  +2% Smithing Skill XP  
Skillers Hat  Item (Helmet)  +2% nonCombat Skill XP  
Golden Wreath  Item (Helmet, Passive)  +3% nonCombat Skill XP  +100 GP gained when earning GP, except Alt. Magic and Item Sales +3% Global Mastery XP 
Blacksmiths Body  Item (Platebody)  +2% Smithing Skill XP  
Skillers Body  Item (Platebody)  +2% nonCombat Skill XP  
Blacksmiths Leggings  Item (Platelegs)  +2% Smithing Skill XP  
Skillers Leggings  Item (Platelegs)  +2% nonCombat Skill XP  
Ancient Ring of Skills  Item (Ring)  +8% nonCombat Skill XP  
Blacksmith Tongs  Item (Shield)  +4% Smithing Skill XP  +10% Chance to gain +1 additional resource in Smithing (Cannot be doubled) +4% Smithing Mastery XP 
Book of Scholars  Item (Shield, Passive)  +3% Global Skill XP  15% Global GP (except Item Sales) 
Pyro  Pet  +1% Global Skill XP 
Action Time
Source  Type  Action Interval  Other Modifiers 

Mountain Trail  Agility Obstacle 15  0.2s Smithing Interval  20% Chance to Preserve Resources in Skills 0.2s Fletching Interval 0.2s Crafting Interval +30% Chance to gain +1 additional resource in Smithing (Cannot be doubled) +30% Chance to gain +1 additional resource in Fletching (Cannot be doubled) +30% Chance to gain +1 additional resource in Crafting (Cannot be doubled) +3% chance to receive a Quality Superior Gem while Mining Gem Veins or Meteorite Ore 
Elite Pillar of Expertise  Agility Pillar  3% Interval for all nonCombat Skills  +8% Chance to Double Items Globally +40% Global GP (except Item Sales) +8% Global Mastery XP 
Iridan  Constellation  5% Smithing Interval  +8% Chance to Double Items in Smithing +8% Accuracy Rating +5 Hidden Attack Level +8% Smithing Mastery XP +5% of Maximum Hit added to Minimum Hit +8% Attack Skill XP +8% Smithing Skill XP 
Ancient Magic Hammer  Item (Consumable)  0.2s Smithing Interval  +5% Smithing Mastery XP +5% Smithing Skill XP 
Candelabra (Lit)  Item (Consumable)  3% Interval for all nonCombat Skills  +4% Global Mastery XP +3% Chance to Preserve Resources in Skills +4% nonCombat Skill XP 
Smithing Lesser Relic  Item (Consumable)  5% Smithing Interval  +1% Damage Reduction +10% Global Evasion 
Blacksmiths Gloves  Item (Gloves)  0.1s Smithing Interval  +3% Smithing Mastery XP +75% Smithing Skill XP 
Harold  Pet  2% Interval for all nonCombat Skills  0.1s Attack Interval 0.2s Monster Respawn Timer +3% Ammo Preservation +2% Chance to Double Items Globally +3% Chance To Preserve Potion Charge +5% Global GP (except Item Sales) +5% Accuracy Rating +5% Global Evasion +5% Global Mastery XP +50% Mastery Pool XP Cap +2% of Maximum Hit added to Minimum Hit +3% Rune Preservation +5% Slayer Coins +3% Chance to preserve Summoning Charges 
Ragnar Dungeon Ruins  Point of Interest  0.1s Smithing Interval  0.1s Cooking Interval 0.1s Firemaking Interval +10% Chance to gain +1 additional resource in Cooking (Cannot be doubled) +10% Chance to gain +1 additional resource in Firemaking (Cannot be doubled) +10% Chance to gain +1 additional resource in Smithing (Cannot be doubled) 
Art of Control  Upgrade  15% Smithing Interval  15% Cooking Interval 15% Firemaking Interval 
Melvor Idle Skill Guides  


Melvor Idle version v1.2.2 (Released: 15th November 2023)  

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Other:
 
Reference Tables: Items, Equipment, Experience Table, Upgrading Items, Combat Areas, Slayer Areas, Dungeons, Chest Loot Tables, Monsters, Monster Loot Tables 