This calculator finds a platinum item's value from its weight, unit and purity, multiplied against the live spot price for platinum (Pt). Enter the details in the tool below, part of the site's platinum calculators and converters, and it returns the item's fine platinum content and its value at $1,711.00 per troy ounce, updated 5 Oct 2026, 15:35 UTC.
Enter weight, unit and purity below.
Platinum value calculator
Manual price input- Fine platinum
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- Metal value
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Enter a weight and purity. Value = weight × fineness ÷ 31.1034768 g per troy ounce × price. Raw metal value, before any dealer premium or refining charge.
How the Platinum Value Calculator Works#
The calculator multiplies the item's fine platinum content by today's spot price per troy ounce, with no dealer premium or discount built in. Fine platinum content is the item's gross weight multiplied by its fineness, so a heavier or purer item returns a higher value at an unchanged spot price. The tool draws today's figure from the same feed as platinum price today, so its output is the item's raw metal value, a starting point rather than a quote to sell or buy at.
The Calculation: Weight x Purity x Spot Price#
Fine platinum content equals gross weight multiplied by fineness: enter the weight, choose the unit, select the purity, and the calculator returns the fine weight and its value at the live spot price. The calculation runs in four steps, listed below.
- Enter the item's gross weight.
- Choose the weight unit, such as grams, troy ounces or pennyweight.
- Select the item's fineness, for example 999.5, 950, 900 or 850 parts per thousand.
- Read the fine platinum content and its value at today's spot price.
Delivery-grade platinum sets the purity ceiling: LPPM Good Delivery plates, Johnson Matthey's base price and NYMEX platinum futures all specify 99.95% (999.5) fine platinum. An item below that fineness simply returns a smaller fine weight, not a different formula.
Platinum Purity and Fineness Marks#
Platinum jewelry and bullion carry a fineness mark such as 999.5, 950, 900 or 850 parts per thousand, with 850 the minimum legal fineness under the UK Hallmarking Act 1973 (extended in 1999), applied by one of the UK's four assay offices. US guidance runs narrower: the FTC's Guides for the Jewelry, Precious Metals and Pewter Industries (16 CFR Part 23, section 23.7) are commonly read to require at least 950 parts per thousand for an unqualified "platinum" claim, though the primary text could not be verified and this threshold is stated with that caveat. Platinum, element 78 (Pt, CAS 7440-06-4), alloys with ruthenium, iridium, cobalt or copper to reach these marks, listed below.
- 999.5 (99.95% fine): delivery-grade platinum, the LPPM and Johnson Matthey base-price standard.
- 950 (95.0% fine): the common jewelry and bridal alloy grade (Pt950/Ru, Pt950/Ir) and, for casting, Pt950/Co.
- 900 (90.0% fine): a permitted UK jewelry standard, less common than 950.
- 850 (85.0% fine): the minimum legal UK platinum fineness, also alloyed with base metals.
Platinum Value by Common Weights and Purities#
Fine platinum content at common weights and fineness levels is shown in the table below, from 1 gram to 1 kilogram. The table pairs six weights, from a 1-gram stud to a 1-kilogram bar, with the four fineness marks the calculator accepts, 999.5, 950, 900 and 850, and the calculator's own widget echoes the same rows with a live US dollar value.
Platinum Fine-Metal Content by Weight and Fineness#
One troy ounce of 950-fine platinum contains 29.55 grams of fine platinum (31.1034768 x 0.950), against 31.09 g at 999.5 fine. The troy ounce itself is fixed at exactly 31.1034768 grams, so every fine-weight figure in the table below scales from that one constant.
| Weight | Grams | 999.5 fine (g) | 950 fine (g) | 900 fine (g) | 850 fine (g) |
|---|---|---|---|---|---|
| 1 gram | 1 | 0.9995 | 0.950 | 0.900 | 0.850 |
| 5 grams | 5 | 4.998 | 4.750 | 4.500 | 4.250 |
| 10 grams | 10 | 9.995 | 9.500 | 9.000 | 8.500 |
| 1 troy ounce | 31.1034768 | 31.09 | 29.55 | 27.99 | 26.44 |
| 100 grams | 100 | 99.95 | 95.00 | 90.00 | 85.00 |
| 1 kilogram | 1,000 | 999.5 | 950.0 | 900.0 | 850.0 |
A 1-gram item at 850 fine, the UK's minimum legal standard, contains 0.850 g of fine platinum, against 0.9995 g at 999.5 fine. A pound converts the same way once first converted to troy ounces: one avoirdupois pound equals 14.5833333 troy ounces (7,000 grains at 480 grains per troy ounce). The platinum price per gram today page prices the same gram figures in the currency of choice.
Platinum Scrap Value: Why the Payout Is Below Spot#
Scrap platinum sells for less than the calculator's spot-price value because a refiner deducts a refining charge and, often, an assay or minimum-lot charge before paying out. Ecotrade Group, a catalyst-scrap refiner, prices that refining charge at US$5 to 25 per troy ounce, on top of any assay and minimum-lot fees. A refiner pays on assayed fine content, not the calculator's headline weight, so a 10 g Pt950 item is paid on its 9.5 g of contained platinum before charges. That gap between the calculator's spot-price value and a refiner's cash offer widens for small lots and material needing extra assay work. The scrap platinum price page sets out how those deductions are typically structured.
Platinum Prices, Coins and Related Converters#
Platinum prices, coins and unit converters extend the calculator's weight-and-purity math to specific denominations, bullion products and other units.
Platinum Price by Weight, Chart, History and Forecast#
Platinum's price by weight, chart, history and forecast each have a dedicated page, linked in the table below.
| Unit or view | Page |
|---|---|
| Gram | platinum price per gram today |
| Kilogram | platinum price per kilogram today |
| 10 grams | platinum price per 10 grams today |
| Pound | platinum price per pound today |
| Chart | platinum price chart |
| History | platinum price history |
| Forecast | platinum price forecast |
| Futures | platinum futures |
Platinum Bullion Coins#
Platinum bullion coins each carry a fixed weight and fineness, so the calculator's own math sets their fine content too, listed below.
- American Platinum Eagle: the US Mint's platinum bullion and proof coin program.
- Platinum Maple Leaf: the Royal Canadian Mint's platinum bullion coin.
Other Weight Converters#
Other weight converters carry the same troy ounce math into grams, kilograms and other units, listed below.
- Troy ounce converter: troy ounces to grams and avoirdupois ounces.
- Kilogram to troy ounce converter: kilograms to troy ounces.
Platinum Calculator FAQ#
How much is platinum worth today?#
Today's platinum value appears in the calculator's live spot-price field, sourced from the platinum price page. The same $1,711.00 per troy ounce figure feeds every row of the weight table above.
How much is 1 pound of platinum worth?#
One avoirdupois pound of platinum equals 14.5833333 troy ounces (7,000 grains divided by 480 grains per troy ounce), so its value is the calculator's per-ounce figure multiplied by 14.5833333. A pound of 999.5-fine platinum contains 453.37 g of fine metal (453.59237 g x 0.9995); the platinum price per pound today page prices it directly.
Why is my scrap platinum payout below the spot price?#
Scrap payouts sit below the spot-price value because refiners charge US$5 to 25 per troy ounce to refine the metal to final purity, according to Ecotrade, on top of any assay and minimum-lot charges. That deduction, not a different fine-content calculation, is what separates a refiner's cash offer from the calculator's headline value.