Bronze	Iron	Steel	Mithril	Adamantite	Runite
1 bar	12.5	25	37.5	50	62.5	75
2 bars	25	50	75	100	125	150
3 bars	37.5	75	112.5	150	187.5	225
5 bars	61.5	125	187.5	250	312.5	375

Smelting Table

Metal Ore	Plus	Produces	Experience Level Needed To Smith	Experience Gained	Buying Price	Selling Price	Notes
one copper ore	one tin ore	one bronze bar	1	6.5
one iron ore	NOTHING	one iron bar	15	12.5			Iron has an approximate 50% success rate in smelting. It's not evenly distributed- sometimes you'll get five bars out of 20, and the next time only 2, but over time it evens out to 50%.
one silver nugget	NOTHING	one silver bar	20	13.5			Used only in crafting, but you get smithing points for smelting it.
one iron ore	two coal ore	one steel bar	30	17.5
one gold nugget	NOTHING	one gold bar	40	22.5			Used only in crafting, but you get smithing points for smelting it.
one mithril ore	four coal ore	one mithril bar	50	30
one adamantite ore	six coal ore	one adamantite bar	70	37.5
one rune ore	eight coal ore	one rune bar	85	50