BTNZ TOOL
Precious Metals Calculator
Estimate melt value using your entered spot price, purity, weight, and payout percentage. Compare full spot value against your selected percentage of spot.
Live market view
Live market reference only. Enter your own spot price below for the calculator.
Metal and spot
Manual input only. Example: if weight = 1 troy oz and purity = 1.000, the result will match the spot price you enter.
Purity selection
Use decimal purity like 1.000, 0.9999, 0.999, 0.925, 0.950, 0.750, 0.585
Weight and unit
Quick weights
Percentage of spot
Enter the percentage of spot you want to compare against full melt value.
Quick payout %
Calculated Output
Estimated Values
100% Spot Melt Value
$0.00 NZD
Selected % of Spot
$0.00 NZD
Difference from Full Spot
$0.00 NZD
Metal
Gold
Entered weight
0 troy oz
Pure metal weight
0 troy oz
Purity
0.0000
Spot / troy oz
$0.00
Spot / gram
$0.00
% of spot selected
100%
Value at selected %
$0.00
Difference between full spot and selected %
$0.00
This is a spot-based estimate only. Dealer margin, refining loss, product type, market conditions, and item condition can change the final figure.









