OUNCESTO GRAMS
Convert ounces to grams for cooking, baking, and postal weights.
Convert
Quick Reference
OZ to Grams
| Oz | Grams | Note |
|---|---|---|
| 1 oz | 28.35 g | |
| 2 oz | 56.7 g | |
| 4 oz | 113.4 g | |
| 6 oz | 170.1 g | |
| 8 oz | 226.8 g | ½ lb |
| 10 oz | 283.5 g | |
| 12 oz | 340.19 g | |
| 16 oz | 453.59 g | 1 lb |
Ounces to grams — why you need this
Older UK recipes, American cookbooks, and imported food packaging all use ounces. Modern UK recipes, nutrition labels, and postal services use grams. If you're baking from a 1970s Delia Smith recipe or ordering protein powder from a US website, you'll need this conversion.
How to convert ounces to grams
Multiply ounces by 28.3495. For a rough estimate, multiply by 28.
OZ to grams
Multiply oz × 28.3495. Example: 8 oz × 28.35 = 226.8 g.
Grams to oz
Divide grams by 28.3495. Example: 250 g ÷ 28.35 = 8.82 oz.
Conversion formula
The international avoirdupois ounce is defined as exactly 28.349523125 grams. There are 16 ounces in one pound (453.6g).
Tips & Best Practices
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A good approximation: 1 oz ≈ 30g (slightly over — use for rough estimates only)
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UK large eggs weigh about 63g (2.2 oz)
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A standard UK letter weighs up to 100g (3.5 oz) for first class
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Royal Mail large letter limit is 250g (8.8 oz)
Frequently Asked Questions
Mandeep Singh · 25+ Years UK Financial Services
Important Information
This calculator is for informational purposes only and does not constitute financial advice or a personal recommendation.
Results are estimates based on the information you provide and may not reflect your actual financial position.
You should consider seeking independent professional advice tailored to your specific circumstances before making any financial decision.