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Oz to Grams Converter
Convert ounces to grams and back with our instant calculator. One ounce (oz) equals 28.3495 grams. Ounces are still widely used in British cooking, jewellery and precious metals.
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Formula: Ounces (oz) → Grams (g): Multiply oz by 28.3495
🇬🇧 British Context
Ounces remain in everyday British use for food portions, precious metals (gold is priced per troy ounce) and baby birth weights. UK recipe books often list both grams and ounces for older readers.
Ounces remain in everyday British use for food portions, precious metals (gold is priced per troy ounce) and baby birth weights. UK recipe books often list both grams and ounces for older readers.
Oz to Grams — Conversion Table
Frequently Asked Questions
Oz to Grams Converter — common questions answered
How many grams are in an ounce?
There are 28.3495 grams in one ounce (oz). For cooking purposes this is usually rounded to 28g or 30g.
What is 4oz in grams?
4 ounces is equal to 113.40 grams (4 × 28.3495 = 113.40g).
How do I convert grams to ounces?
Divide the number of grams by 28.3495 to get ounces. For example, 100g ÷ 28.3495 = 3.53 oz.
What is a troy ounce in grams?
A troy ounce (used for precious metals like gold and silver) is slightly heavier than a standard ounce — 31.1035 grams compared to 28.3495 grams.
How many ounces are in a pound?
There are 16 ounces in one pound. So 1 lb = 16 oz = 453.59 grams.