Gold Price Per Ounce Calculator
Gold price per ounce calculator for troy-ounce value with purity and spot. Catch avoirdupois ounce mix-ups before a one-ounce scrap ticket goes sideways.
سونے کی قیمت کیلکولیٹر
موجودہ 14K ریٹ · —/گرام · —/تولہ
اس حساب میں لائیو مارکیٹ سپاٹ استعمال ہو رہا ہے۔
فارمولا: وزن × کیریٹ ضرب · سپاٹ۔ 14K = 0.583
Spot prints in troy ounces. Kitchen scales and shipping labels often don't. That mismatch is the oldest quiet error in gold math.
Call a piece "an ounce" when it's an avoirdupois ounce, and you've already overstated the metal by a few percent. Do it on a heavy lot and the ticket lies with confidence.
This calculator works troy-ounce value from weight, purity, and spot — and keeps the troy definition in your face while you do it.
Troy vs the ounce in your kitchen
| Unit | Grams |
|---|---|
| 1 troy ounce | 31.1035 g |
| 1 avoirdupois ounce | ≈ 28.3495 g |
Gold, silver, and platinum trade on troy. If a scale mode just says "oz" without "troy" or "t oz," verify before you trust the display.
20 DWT = 1 troy oz. Pennyweight still shows up on scrap tickets for a reason.
Full unit map: pennyweight vs grams vs troy ounce.
Building ounce value the clean way
- Confirm you're in troy (or convert grams ÷ 31.1035).
- Apply purity (karat/24 or fineness). Jewelry ounces are not fine ounces unless purity says so.
- Multiply fine troy ounces × gold spot.
- Label the result melt-style — offers often sit under after testing and margin.
Fine ounces = total troy ounces × purity.
A full troy ounce of 14K jewelry is only ≈ 0.583 fine oz.
Ounce cheat sheet
| Jewelry weight | At 14K (0.583) fine oz | At 18K (0.75) fine oz | At 24K (0.999) fine oz |
|---|---|---|---|
| 1 troy oz | ≈ 0.583 | 0.75 | ≈ 0.999 |
| 0.5 troy oz | ≈ 0.292 | 0.375 | ≈ 0.500 |
| 10 DWT (0.5 troy oz) | ≈ 0.292 | 0.375 | ≈ 0.500 |
EXAMPLE — "one ounce" 14K chain
EXAMPLE spot: $4,000 / troy oz (illustrative).
Scale says 1.00 troy oz of confirmed 14K, stones out.
Fine oz ≈ 1.00 × 0.583 = 0.583
Melt-style ≈ 0.583 × 4000 = $2,332.
If that same chain was actually 1.00 avoirdupois oz (≈ 28.35 g ≈ 0.911 troy oz), fine ≈ 0.531 oz → ≈ $2,124. Same word — "ounce" — different cash.
Bars, rounds, and jewelry ounces
Bullion often states fine troy ounces on the face. Prefer that number.
Jewelry "ounce lots" are almost always gross weight. Apply karat. Don't quote them like Maple Leafs.
For live spot workflows, pair this with the live gold price calculator. For purity marks: gold purity hallmark chart.
Related tools and guides
- Goldcalculator
- all gold calculators
- gold gram calculator
- gold coin melt calculator
- 24K gold calculator
- pennyweight vs grams vs troy ounce
Frequently Asked Questions
How many grams in a troy ounce of gold?
31.1035 g. Memorize it if you price metal often.
Is a gold ounce the same as a food ounce?
No. Food ounces are avoirdupois. Gold uses troy.
How do I value half an ounce of 22K?
0.5 troy oz × (22/24) × spot. At EXAMPLE $4,000/oz → 0.5 × 0.9167 × 4000 ≈ $1,833 melt-style.
Why did my buyer use DWT on an ounce lot?
Habit and ticket printers. 20 DWT = 1 troy oz. Convert and move on.
Can I enter grams here?
Yes if the tool converts — or divide grams by 31.1035 yourself, then apply purity and spot.
Does this include mint premiums?
No. Melt-style metal value only. Premiums are a separate trade.
Disclaimer
Troy-ounce estimates follow the weight unit and purity you enter. Avoirdupois mix-ups and wrong karat spoil the math. Educational use only.