Gold Analyzer — Combined Karat, Impurity & Live Money Value
The unified gold analyzer combines karat purity calculation, alloy/impurity content, hallmark fineness lookup and live money valuation in a single calculator. Pick your input units (grams or tola), enter weight and karat, and the tool produces a complete valuation card across every relevant metric.
This is the "everything-at-once" view jewellers and scrap dealers use for quick walk-in valuations.
When to use this calculator
- Full piece valuation in one screen
- Counter-quote with no mental conversion
The All-in-One Gold Valuation Screen
The gold analyzer is designed for the counter scenario: a customer places an ornament on the scale and wants to know, in a single answer, its karat purity, how much pure gold it contains, what the alloy mass is, and what the piece is worth at today's international spot rate. Instead of running three separate calculators, the analyzer delivers all four figures simultaneously from a single gross weight and karat input.
Jewellers and scrap dealers in South Asia and internationally use this tool as a counter-quote assistant. The purity percentage and hallmark fineness outputs (e.g., 22K = 916 fineness) provide the exact figures that BIS, PMMC or LBMA hallmark certificates print, allowing on-the-spot certificate verification without manual lookup.
For a dedicated weight-only view across all international units — without the money-value column — the gold weight calculations converter provides a comprehensive cross-unit expansion of any input weight.
How it combines
Runs all four sub-calculations: pure gold mass, alloy mass, purity percentage, fineness number, plus money value at live international spot — for any weight unit input.
Step-by-step calculation
Example: 10 g of 22K gold (grams input mode)
- 1
Pure gold mass
pure (g) = gross × (karat ÷ 24)
10 × (22÷24) = 9.167 g pure
- 2
Alloy mass
alloy (g) = gross − pure
10 − 9.167 = 0.833 g alloy
- 3
Purity % and hallmark fineness
fineness = karat ÷ 24 × 1000
22÷24 × 1000 = 916 fine; 91.67% purity
- 4
Verify exact karat from inputs
karat = pure ÷ gross × 24
9.167 ÷ 10 × 24 = 22.000K
- 5
Money value (at PKR 340,000/tola)
value = pure (g) × (rate ÷ 11.664)
9.167 × (340,000÷11.664) = PKR 267,340 approx.
Sample conversions
| Input | Result |
|---|---|
| 10 g of 22K | 9.167 g pure, 0.833 g alloy, 91.67%, 916, ~$1,338 USD value |
| 1 tola of 22K | 10.692 g pure, 0.972 g alloy, 91.67%, 916 |
Quick Reference — Common Karat Metrics
| Karat | Fineness |
|---|---|
| 24K | 999 |
| 22K | 916 |
| 21K | 875 |
| 18K | 750 |
| 14K | 585 |
| 10K | 417 |
Fineness = (karat ÷ 24) × 1000, rounded to nearest integer. Standard hallmark values.
Frequently asked questions
Is the Gold Analyzer different from the Karat Purity calculator?
It is a superset — it combines karat purity, impurity mass, fineness number and live money value into one screen instead of requiring three separate tools. For a quick pure-gold mass check only, the Karat Purity calculator is faster.
Which input unit should I choose — grams or tola?
Choose the unit your scale and ledger use. If you weigh in grams (digital jeweller scales), pick grams. If you deal in tola (South Asian Sarafa Bazar), pick tola. The math and outputs are identical — only the display unit changes.
Can I use the Gold Analyzer to value a full collection at once?
Run it once per karat group and sum the pure-gold and value outputs. For a mixed collection (some 22K, some 18K), keep the karat groups separate — averaging karats across a mixed batch gives an incorrect purity result.
What is the difference between "purity percentage" and "fineness" in the results?
Purity percentage is karat ÷ 24 × 100 (e.g., 22K = 91.67%). Fineness is purity × 10 (e.g., 91.67% = 916 fineness = parts-per-thousand). Hallmarks print fineness; the karat label is stamped separately. The analyzer shows both so you can match either to the piece.
Does the Gold Analyzer account for gems, stones or enamel in the piece?
No — it uses the gross weight you enter. Deduct estimated stone/enamel weight from the gross before entering if you want a pure-gold figure for set jewellery. Stone weights are often listed on the original purchase invoice.
How do I know if a gold buyer's offer is fair based on the analyzer output?
A fair scrap-gold offer is typically 75–90% of the analyzer's pure-gold melt value (the theoretical 24K equivalent at live spot). Deductions cover the buyer's refining cost and margin. Offers below 70% of melt value are low; above 90% is excellent.
Related calculators
These tools cover neighbouring steps in the same workflow — pair them with this one for a complete calculation.