Cannonball Profit Calculator
What one steel bar earns as cannonballs, an hour at the furnace, and the bars your Smithing goal needs.
gp per steel bar
… gp Loading GE prices… An hour at the furnace (estimate)
gp an hour: loading prices
13,824–15,360 Smithing XP
To your Smithing goal
Load my levels
Lvl 35 → 99: 508,283 steel bars / 2,033,132 cannonballs
about 847–941 hours
Not counted
- Price changes while you buy and sell.
- Slower bank trips than the estimate.
- Other furnaces and other metals.
How this is worked out
- 4 cannonballs and 25.6 Smithing XP per steel bar, from level 35, with either mould. The double ammo mould turns 2 bars into 8 cannonballs per action (OSRS Wiki Module:Skill calc/Smithing rev 15357927; Steel cannonball rev 15374596).
- Bars an hour: ammo mould 540–600, double ammo mould 953–1,200, Ancient Furnace with Isles and the double mould 2,100–2,150 (Wiki Steel cannonball, Cannonball rev 15372750, Ancient Furnace rev 15214979; 953 is a tick count with a 32-tick bank trip). All are estimates for a focused player.
- The ammo mould can't pass 600 bars, so 15,360 XP, an hour.
- gp per bar = 4 × (cannonball price − 2% GE tax, rounded down) − steel bar price − Isles fee (Wiki Grand Exchange rev 15372022; Isles rev 15348831).
- Steel bars use the GE buy price (the higher one). Cannonballs use the GE sell price (the lower one). Each price shows the time of its last trade; a price older than 48 hours is not used.
Cannonball calculator — FAQ
How many cannonballs do you get from one steel bar?
4. The double ammo mould uses 2 bars at once and makes 8, which is still 4 per bar.
Do cannonballs make or lose money right now?
It depends on the steel bar and cannonball prices. The calculator above shows the gp per bar after the 2% GE tax on the cannonballs, with the time of each price it used.
How much Smithing XP an hour do cannonballs give?
At most 15,360 with the ammo mould: each bar gives 25.6 XP and the mould tops out at 600 bars an hour. The OSRS Wiki estimates about 24,397-30,720 with the double ammo mould and about 53,760-55,040 at the Ancient Furnace. These are estimates for a focused player.
Is the double ammo mould worth it?
It makes 2 bars at once, so the Wiki estimates 953-1,200 bars an hour instead of 540-600. The gp per bar stays the same. It costs 2,000 reputation from Giants' Foundry.
How many steel bars do you need for 99 Smithing with cannonballs?
508,283 steel bars from level 35 to 99, which make 2,033,132 cannonballs.
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