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How to Calculate Ounces to Grams

What is Ounces to Grams?

An ounces to grams converter converts imperial ounces (oz) to metric grams (g). Used in cooking, nutrition labels, postal services, and international trade.

Formula

g = oz × 28.3495
oz
Ounces (oz) — Imperial avoirdupois ounce
g
Grams (g) — Metric mass unit

Step-by-Step Guide

  1. 11 ounce = 28.3495 grams
  2. 21 pound = 16 ounces = 453.592 grams
  3. 3Grams = Ounces × 28.3495
  4. 4Troy ounce = 31.1035 grams (precious metals)

Worked Examples

Input
1 oz (standard portion)
Result
28.35g
Input
8 oz (half pound)
Result
226.8g
Input
16 oz (1 pound)
Result
453.6g

Frequently Asked Questions

How many grams is 16 ounces?

16 oz = 453.6 g ≈ 450 g. This is also 1 pound, a common kitchen reference.

What weighs one ounce?

About 28 grams. A slice of bread, a small banana, or three AA batteries are roughly 1 oz.

How do I convert small ounce amounts?

Quick rule: multiply oz by 28. Example: 3.5 oz × 28 = 98 g. For very precise work (spices, medicine), use 28.35.

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