AVAurumValue

Reference library

Precious metal converters

Convert weight units and gold karats, with each result tied to current precious metal values.

Weight converters

grams to ouncesgrams to kilogramsgrams to tolasgrams to taelsgrams to grainsounces to gramsounces to kilogramsounces to tolasounces to taelsounces to grainskilograms to gramskilograms to ounceskilograms to tolaskilograms to taelskilograms to grainstolas to gramstolas to ouncestolas to kilogramstolas to taelstolas to grainstaels to gramstaels to ouncestaels to kilogramstaels to tolastaels to grainsgrains to gramsgrains to ouncesgrains to kilogramsgrains to tolasgrains to taels

Gold karat converters

24k to 23k gold24k to 22k gold24k to 21k gold24k to 20k gold24k to 18k gold24k to 16k gold24k to 15k gold24k to 14k gold24k to 12k gold24k to 10k gold24k to 9k gold24k to 8k gold23k to 24k gold23k to 22k gold23k to 21k gold23k to 20k gold23k to 18k gold23k to 16k gold23k to 15k gold23k to 14k gold23k to 12k gold23k to 10k gold23k to 9k gold23k to 8k gold22k to 24k gold22k to 23k gold22k to 21k gold22k to 20k gold22k to 18k gold22k to 16k gold22k to 15k gold22k to 14k gold22k to 12k gold22k to 10k gold22k to 9k gold22k to 8k gold21k to 24k gold21k to 23k gold21k to 22k gold21k to 20k gold21k to 18k gold21k to 16k gold21k to 15k gold21k to 14k gold21k to 12k gold21k to 10k gold21k to 9k gold21k to 8k gold20k to 24k gold20k to 23k gold20k to 22k gold20k to 21k gold20k to 18k gold20k to 16k gold20k to 15k gold20k to 14k gold20k to 12k gold20k to 10k gold20k to 9k gold20k to 8k gold18k to 24k gold18k to 23k gold18k to 22k gold18k to 21k gold18k to 20k gold18k to 16k gold18k to 15k gold18k to 14k gold18k to 12k gold18k to 10k gold18k to 9k gold18k to 8k gold16k to 24k gold16k to 23k gold16k to 22k gold16k to 21k gold16k to 20k gold16k to 18k gold16k to 15k gold16k to 14k gold16k to 12k gold16k to 10k gold16k to 9k gold16k to 8k gold15k to 24k gold15k to 23k gold15k to 22k gold15k to 21k gold15k to 20k gold15k to 18k gold15k to 16k gold15k to 14k gold15k to 12k gold15k to 10k gold15k to 9k gold15k to 8k gold14k to 24k gold14k to 23k gold14k to 22k gold14k to 21k gold14k to 20k gold14k to 18k gold14k to 16k gold14k to 15k gold14k to 12k gold14k to 10k gold14k to 9k gold14k to 8k gold12k to 24k gold12k to 23k gold12k to 22k gold12k to 21k gold12k to 20k gold12k to 18k gold12k to 16k gold12k to 15k gold12k to 14k gold12k to 10k gold12k to 9k gold12k to 8k gold10k to 24k gold10k to 23k gold10k to 22k gold10k to 21k gold10k to 20k gold10k to 18k gold10k to 16k gold10k to 15k gold10k to 14k gold10k to 12k gold10k to 9k gold10k to 8k gold9k to 24k gold9k to 23k gold9k to 22k gold9k to 21k gold9k to 20k gold9k to 18k gold9k to 16k gold9k to 15k gold9k to 14k gold9k to 12k gold9k to 10k gold9k to 8k gold8k to 24k gold8k to 23k gold8k to 22k gold8k to 21k gold8k to 20k gold8k to 18k gold8k to 16k gold8k to 15k gold8k to 14k gold8k to 12k gold8k to 10k gold8k to 9k gold

Weight and karat conversions explained

Precious metals use units that are rarely seen elsewhere. Bullion is priced per troy ounce of 31.1035 grams, South Asian jewelry per tola of 11.6638 grams and Hong Kong gold per tael of 37.429 grams. Our weight converters use these exact legal definitions, so you can compare a price per ounce with a price per tola without rounding errors.

Karat converters answer a different question: how much gold of one purity contains the same pure gold as another. For example, 10 g of 18k (750) gold equals about 7.51 g of 24k. They are useful when trading in old jewelry or comparing per-gram quotes in different karats. For live prices per karat see gold price per gram by karat.

Live values use MetalflowAPI prices.

FAQ

Frequently asked questions

How many grams are in a troy ounce?
One troy ounce equals 31.1035 grams. It is about 10% heavier than the avoirdupois ounce of 28.35 grams used for food.
How many grams are in a tola?
One tola equals 11.6638 grams. The unit is widely used for gold in India, Pakistan, Nepal and the Gulf states.
How do I convert 18k gold to 24k?
Multiply the 18k weight by 0.750 to get pure gold content, then divide by 0.999. Ten grams of 18k gold therefore contain the same gold as about 7.51 grams of 24k.
What is a tael?
A tael is a traditional Chinese weight. The Hong Kong tael used in gold trading equals 37.429 grams.
Are the converters exact?
Unit conversions use exact legal definitions. Karat conversions use standard hallmark fineness values such as 585 for 14k and 750 for 18k.

Gold price per gram by karat

9K (375) gold price per gram10K (417) gold price per gram14K (585) gold price per gram18K (750) gold price per gram21K (875) gold price per gram22K (916) gold price per gram24K (999) gold price per gramScrap gold calculatorAll karats compared