OSRS League – Ore Transmutation Calculator

Thieving rate: 1 pick every 1.2 s (3,000 picks/hour) · Transmutation: 1 cast every 3 s / 5 ticks (1,200 casts/hour) · League multiplier: 10× · Transmutation chain: Iron → Coal → Mithril → Adamantite → Runite (10 ores → 10 ores per cast)

Settings

Batch size when selling to shop (Mistrock Mining Supplies) Sell 1 at a time (100% avg price) Sell 5 at a time (96% avg price) Sell 10 at a time (91% avg price) Sell 50 at a time (51% avg price)

GP per Hour by Transmutation Strategy

0-time transmuting – transmutation is done passively while doing another activity (e.g. agility laps). Thieving runs at full speed (3,000 picks/hr); casting costs you no extra time. This column shows the theoretical ceiling: the full value of every ore you collect.
Total time (thieving + casting) – you split your time between thieving and casting, alternating between the two. The more casts a strategy needs, the less time is left for thieving. GP/hr = 0-time GP/hr × fraction of time spent thieving. Use this column when transmuting is your main activity.
Casts/hr values above 1,200 mean ores accumulate faster than you can transmute them.

Strategy	Casts/hr needed	GP/hr 0-time transmuting	% time casting (total time)	GP/hr total time

Expected Ore per Thieving Pick

Expected ore per pick and per hour (3,000 picks/hour) with the 10× league multiplier. Values use the average sell price at the selected batch size. No transmutation.

Ore	Drop chance	Per pick	Per hour	Avg sell price	Value per pick	Value per hour

Transmutation Value per Cast

Each cast converts 10 ores of one tier into 10 ores of the next (1:1 per ore). "Avg GP per transmute (per ore)" = total profit per ore ÷ number of casts needed. Use this to compare whether early hops (e.g. Iron→Coal) are worth the cast time.

Starting ore	Avg sell price	Hops to Runite	Profit per ore	Avg GP per transmute (per ore)	Avg GP per cast (10 ores)