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Calcimator

Mining Royalty Calculator

Calculate royalty payments from production, metal price, and royalty rate for gross revenue, NSR, or net profits royalties.

Inputs

oz
$/oz
%

Results

Annual Royalty

$4,750,000.00

≈ 11 average U.S. homes

Royalty per Ounce$95.00
Effective Rate5%
Royalty BasisGross Revenue
Gross Revenue$95,000,000.00
Royalty Base Amount$95,000,000.00
After-Royalty Revenue$90,250,000.00
After-Royalty/oz$1,805.00
How to Use This Calculator
  1. Enter annual production (oz or lbs) and current metal price ($/oz or $/lb).
  2. Set the royalty rate (%) from your mining agreement.
  3. Select royalty type: Gross Revenue, Net Smelter Return (NSR), or Net Profits.
  4. For NSR, enter smelter deductions (%) and for Net Profits, enter operating cost per oz.
  5. Review annual royalty payable to budget cash flows and evaluate the impact of different royalty structures.

How the result changes with Annual Production

Annual ProductionAnnual Royalty
1,000,090$95,008,550.00
3,500,065$332,506,175.00
6,500,035$617,503,325.00
9,000,010$855,000,950.00

What each input means

Annual Production
Annual metal production in troy ounces
Metal Price
Current metal price per troy ounce
Royalty Rate
Royalty rate percentage
Royalty Type
Basis for royalty calculation
Smelter Deductions
Smelting and refining deductions (for NSR royalty)
Operating Cost
All-in operating cost per ounce (for net profits royalty)

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Annual Production = 50000, Metal Price = 1900, Royalty Rate = 5, Royalty Type = 0 = 6 input(s) provided
  2. Calculate Annual Royalty
    Annual Royalty
    4750000 = $4,750,000
  3. Calculate Royalty per Ounce
    Royalty per Ounce
    95 = $95
  4. Calculate Effective Rate
    Effective Rate
    5 = 5

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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