How do I calculate scrap gold value?
Enter the gold weight, choose grams, dwt, or troy ounces, select the karat or custom purity, and calculate. SpotCalc Pro uses spot price, purity, and weight to estimate melt value.
Values are estimates only and may vary based on live market prices, testing, purity, dealer payout percentage, and local compliance requirements.
How to use the free precious metals calculator
1. Enter weight
2. Select purity
3. Confirm spot price
4. Adjust payout
5. Add+ multiple items
SpotCalc.com provides information about SpotCalc Pro, a precious-metals calculator and invoice/export tool for informational workflow use only. SpotCalc Pro is not a Florida Chapter 538 compliance or reporting system. Final offers, testing, taxes, and compliance obligations remain the responsibility of the user.
Buying calculator for precious-metal dealers
One list for everything.
One list for everything.
Fully customizable.
Live spot prices, your buy percentages, a finished invoice - in under ten seconds. Runs offline, on any phone.
Custom Purity
Your refinery's exact percentages, not the defaults.
Every karat and grade has an editable purity field. If your refinery pays on 14K at 57.8% instead of 58.33%, set it once - every calculation, offer, and invoice updates instantly across the whole app.
- → Per-grade overrides for gold, silver & platinum
- → Changes apply immediately across all calculations
- → Leave blank to fall back to the standard default
Invoicing
Finalize it. Export in one tap.
Every lot builds a clean invoice automatically. Review the line items, confirm the total offer, then export as PDF, photo, or email - right from the same screen.
- → All items carried over from your list automatically
- → Melt value and offer shown side by side per item
- → PDF, photo, or email export in one tap
Customer Details
Business header, customer info, custom override.
Add customer name, phone, address, and notes. Override the offer amount per item if needed. Save for records, or re-finalize and re-send at any time.
- → Name, phone, email, and address fields
- → Per-item offer override with a custom amount
- → Save, re-finalize, or cancel at any point
My Value
See every margin before you make the offer.
Set your target resell price for each metal. SpotCalc Pro shows total melt value, your sell target, and the purchase offer - all three at once. Know your spread before you quote.
- → Melt value - what the metal is worth at live spot
- → My Value - what you can realistically resell it for
- → Offer - the buy price you quote the customer
- → All three visible per metal, side by side
Invoicing
Close the deal,
Close the deal,
then close the paperwork.
Import the active list, drop in the customer, and finalize. Every invoice is stored and re-sendable.
- → Line items pulled straight from your list
- → Business header, notes, and custom offer override
- → Export to PDF, photo, or email in one step
Calculator FAQ
Gold, silver, and spot price calculator basics.
Can I use this as a silver spot price calculator?
Yes. Select Silver, enter your weight, choose fine silver, sterling, coin silver, or custom purity, then calculate the estimated silver scrap value from the current spot price.
What is a spot price calculator?
A spot price calculator estimates metal value using the current market price per troy ounce. SpotCalc Pro supports gold, silver, and platinum spot calculations.
Can I edit the current spot price?
Yes. The spot price field fills automatically, but you can click it, type your own price, or use Refresh to return to the latest current spot price.
Does the calculator support 14K gold?
Yes. The gold calculator includes common karats like 24K, 22K, 18K, 14K, and 10K, plus a custom purity option for unusual alloys or refinery-specific percentages.
What does payout percentage mean?
Payout percentage is the percentage of estimated melt value offered to the seller. For example, an 80% payout means the offer is 80% of the calculated scrap value.
Price your next lot
in ten seconds.
Install SpotCalc Pro free. No account, no app store, no signal needed.
Install the app - free