Ore Grade Calculator
Calculate recoverable metal tonnage from total ore tonnage, grade percentage, recovery rate, and cutoff grade.
Inputs
Results
Contained Metal
150 t
Recoverable Metal
135 t
Above Cutoff Grade?
Yes
Grade (g/t)15,000 g/t
Grade Margin over Cutoff1.2%
Metal per Tonne Ore13.5 kg/t
Waste Tonnage0
How to Use This Calculator
- Enter the Total Ore Tonnage in metric tons and the Ore Grade as a percentage of metal content.
- Enter the Recovery Rate percentage to account for metallurgical losses during processing.
- Enter the Cutoff Grade below which mining is uneconomic.
- Review Contained Metal and Recoverable Metal tonnage as the key reserve calculation outputs.
- Check Above Cutoff Grade and Grade Margin to confirm economic viability of the deposit.
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Formula
Recoverable Metal = Tonnage × Grade% × Recovery%Related Calculators
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