Calculator
Copper mining stock valuation calculator
Copper projects are large, slow and expensive, so the answer depends heavily on capital, timing and the discount rate. This calculator helps you frame those drivers using the numbers you enter, whether you are looking at a producer or a distant developer.
Grade, tonnes and contained pounds
Copper grade is quoted as a percentage, and contained metal is shown in millions or billions of pounds. Small differences in grade matter because copper deposits are typically low grade and rely on volume. Enter resource categories separately, and keep inferred material apart from reserves so you can see how much of the story depends on it.
Recovery and payability convert contained metal into what is actually sold. Concentrate terms and smelter deductions are not the same as head grade, so use the figures from the technical report where possible.
Capital and timing dominate
A copper developer might spend years and billions before first production. In the optional mine plan, initial capital, contingency, ramp-up and the discount rate all pull the project NAV in different directions. Treat that NAV as meaningful only if those assumptions are defensible, ideally lifted from a published study and not guessed.
On the cost side, avoid double counting: if your cost figure is all-in sustaining cost it already includes sustaining capital, so leave the separate sustaining capex field accordingly. The AISC explainer shows how.
Risk before reward
Permitting, funding, jurisdiction and community relations often decide copper outcomes more than the price. The risk lens converts your judgements into a probability-style haircut, explained in the risked NAV guide. The result is a prompt for further research, not a forecast.
Everything here uses the figures you provide, the calculator is not a live market feed, samples are illustrative, and nothing is investment advice. Before relying on a result, compare the contained pounds from your inputs with the company technical report, and confirm that grade, recovery and payability use the same basis. A mismatch there quietly distorts everything downstream, including the scenario spread.
Try it with your own figures
The calculator starts with the market snapshot. Nothing is pre-filled for you, and results depend on what you enter.
Open the mining stock calculatorFrequently asked questions
- Why does the discount rate matter so much for copper?
- Cash flows arrive many years after the spending, so a higher rate cuts the present value of a late project sharply.
- Can I screen a copper developer without a mine plan?
- Yes. Use the market snapshot and resource inventory, then add a mine plan only when you can support its assumptions.
- Is a live copper price filled in for me?
- No live price is fetched into scenario assumptions. Set your price cases and review any illustrative resource defaults before use; the calculator is not a live market feed.