HomeEngineeringPlatinum Weight Calculator

Platinum Weight Calculator

Calculate platinum weight instantly from dimensions or volume. Get results in pounds, kilograms, and troy ounces using accurate density (21.45 g/cm³).

Ask a question to get your result

Frequently Asked Questions

Common questions about platinum weight.

Platinum has a density of 21.45 g/cm³ (1,339 lb/ft³ or 0.775 lb/in³). This makes it one of the densest elements, significantly heavier than gold (19.32 g/cm³) and about twice as dense as steel.

Multiply length × width × height to get volume, then multiply by platinum's density (0.775 lb/in³ for imperial or 21.45 g/cm³ for metric). The result is the total weight of the platinum piece.

Platinum is rare (30 times rarer than gold), difficult to extract and refine, and has critical industrial uses in catalytic converters, electronics, and medical devices. Its scarcity and diverse applications drive high prices.

A troy ounce (31.1 grams) is the standard for precious metals and is about 10% heavier than a regular avoirdupois ounce (28.35 grams). Platinum prices are always quoted in troy ounces.

Yes, platinum is about 11% denser than gold. A cubic inch of platinum weighs 0.775 pounds while the same volume of gold weighs 0.698 pounds, making platinum noticeably heavier for identically sized pieces.

How to Calculate

To calculate platinum weight, measure your piece's dimensions (length, width, thickness) or determine its volume. The calculator uses platinum's density of **21.45 g/cm³** (or **0.775 lb/in³**) to convert volume into weight. The formula is straightforward: **Weight = Volume × Density**. Results are provided in pounds, kilograms, and troy ounces for easy reference whether you're working in jewelry, industrial applications, or investment.

Formula & Method

Weight = Volume × Density

Where:
- Volume = Length × Width × Height (or direct volume measurement)
- Density of Platinum = 21.45 g/cm³ (or 1,339 lb/ft³, or 0.775 lb/in³)
- 1 troy ounce = 31.1035 grams

Sources & References

https://www.nist.gov/
https://www.rsc.org/periodic-table/element/78/platinum
https://www.usgs.gov/centers/national-minerals-information-center/platinum-group-metals-statistics-and-information

Related Calculators

Aluminum Weight Calculator

Calculate aluminum weight instantly for sheets, plates, bars, and extrusions. Enter dimensions and alloy type for accurate weight and material cost estimates.

→

Cast Iron Weight Calculator

Calculate cast iron weight instantly from dimensions or volume. Uses standard gray cast iron density (450 lb/ft³) for accurate results in engineering applica...

→

Magnesium Weight Calculator

Calculate magnesium weight instantly from dimensions. Uses standard density of 1.738 g/cm³ (109 lb/ft³). Compare to aluminum, steel,

→

Zinc Weight Calculator

Calculate zinc sheet and plate weight instantly from dimensions. Get accurate weights in pounds and kilograms using standard zinc density of 445 lb/ft³.

→

Content reviewed by the ProCalc.ai editorial team · About our standards