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Precious Metal Weight Converter

Convert gold and silver weights between grams, troy ounces, pennyweights, and tolas — the units used by bullion dealers.

Troy ounces

3.22

Breakdown

Grams
100
Pennyweights (dwt)
64.30
Tolas
8.57
Regular (avoirdupois) ounces
3.53
Melt value at spot price
0

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FAQ

Why do precious metals use troy ounces?

The troy system dates to medieval French markets and became the bullion standard. A troy ounce (31.103 g) is about 10% heavier than the kitchen-scale ounce (28.35 g) — mixing them up is the classic gold-buying mistake.

What is a pennyweight?

One twentieth of a troy ounce (1.555 g), abbreviated dwt from 'denarius weight'. It survives mainly in US jewellery scrap dealing — dealers quoting per dwt often look cheaper than per gram, so always normalise first.

What is a tola?

A traditional South Asian unit equal to 11.664 g, still the standard quote for gold bars in India, Pakistan, and the Gulf. The classic 'ten-tola bar' weighs 116.64 g, a hair under four troy ounces.

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