Calculator
Metal equivalent calculator
Work out AuEq or CuEq from each metal's grade, price and recovery - and see what 100% recovery hides.
Equivalent grade, with these recoveries
-
Assuming 100% recovery
-
How it works
An equivalent grade turns several metals into one by valuing each at an assumed price and the share of it a plant would actually recover:
AuEq (g/t) = Au g/t + Cu % x (Cu price per % per tonne x Cu recovery) / (Au price per g x Au recovery)
One percent copper is 10kg (22.05 lb) per tonne; one troy ounce is 31.1035 grams. The calculator does the unit conversions for you.
Why DrillScore flags equivalents without recoveries. The ASX's position is that metal equivalents aren't appropriate without metallurgical recovery information, and that if none is given it will assume 100% recovery. Compare the two results above: leaving recoveries out always makes the equivalent look richer. Metal equivalents explained.
See every flagged equivalent on the red flags page.
Start the conversation
Questions about this calculator