Ounces to Grams Converter (oz to g)
Convert ounces to grams for recipes, coffee doses and postage. 1 oz = 28.3495 g, so 4 oz is 113.4 g and 16 oz (one pound) is 453.6 g.
Real-World Benchmarks
Multi-Unit Conversion Matrix
| Group | Measurement | Symbol | Equivalent Value |
|---|---|---|---|
| Metric (SI) | Microgram | µg | 2.2680E8 |
| Metric (SI) | Milligram | mg | 226,796.185 |
| Metric (SI) | Gram | g | 226.7962 |
| Metric (SI) | Kilogram | kg | 0.2268 |
| Metric (SI) | Metric Tonne | t | 0.0002 |
| Imperial & US Customary | Ounce | oz | 8 |
| Imperial & US Customary | Pound | lb | 0.5 |
| Imperial & US Customary | Stone | st | 0.0357 |
| Imperial & US Customary | Short Ton (US) | US ton | 0.0003 |
| Imperial & US Customary | Long Ton (UK) | UK ton | 0.0002 |
| Precious Metals & Gems | Troy Ounce | oz t | 7.2917 |
| Precious Metals & Gems | Carat | ct | 1,133.9809 |
| Precious Metals & Gems | Grain | gr | 3,500 |
Step-by-Step Mathematical Explanation
- Step 1: Convert 8 oz to the base unit (kg): 8 × 0.028349523125 = 0.226796 kg.
- Step 2: Convert base kilograms to grams: 0.226796 ÷ 0.001 = 226.796185 g.
- Direct factor: 1 oz = 28.34952313 g.
Essential Conversion Factors
Ounce: Avoirdupois ounce — 1/16 of a pound
oz to g formula
Direct Answer: 1 oz = 28.349523 g, so multiply by 28.349523: g = oz × 28.349523. Going back: oz = g × 0.035273962.
How to convert ounces to grams
One avoirdupois ounce is exactly 28.349523125 grams: a sixteenth of the 453.59237 g pound. Multiplying ounces by 28.3495 gives grams with no meaningful rounding.
1. oz → g
Multiply the number of ounces by the conversion factor:
Example: 8 oz × 28.349523 = 226.8 g.
2. g → oz
To go back, divide by the same factor, or multiply by its reciprocal, 0.035273962:
Example: 226.8 g ÷ 28.349523 = 8 oz.
Mental math: multiply by 28, then add a little
Multiply by 28 and add about 1%. For quick kitchen work, 30 g per ounce is a common rough figure that runs 6% high:
8 oz: 8 × 28 = 224, plus 2 = 226 g (exact: 226.8 g).
1 oz in other mass units
| Unit | 1 oz equals | Typical use |
|---|---|---|
| Microgram | 28,349,523 µg | Vitamins and trace nutrients |
| Milligram | 28,349.523 mg | Medication doses and supplements |
| Gram | 28.349523 g | Cooking, postage and nutrition labels |
| Kilogram | 0.028349523 kg | SI base unit of mass — body weight and groceries |
| Metric Tonne | 0.000028349523 t | Vehicles, freight and cargo (1,000 kg) |
| Pound | 0.0625 lb | International avoirdupois pound (exactly 0.45359237 kg) |
| Stone | 0.0044642857 st | UK & Irish body weight unit (14 lb) |
| Short Ton (US) | 0.00003125 US ton | US ton — 2,000 lb |
| Long Ton (UK) | 0.000027901786 UK ton | Imperial ton — 2,240 lb |
| Troy Ounce | 0.91145833 oz t | Gold, silver and platinum pricing (31.1035 g) |
| Carat | 141.74762 ct | Gemstones and diamonds (exactly 200 mg) |
| Grain | 437.5 gr | Ammunition, arrows and pharmacy (1/7000 lb) |
oz to g chart
| oz | g |
|---|---|
| 0.25 | 7.1 |
| 0.5 | 14.2 |
| 1 | 28.3 |
| 1.5 | 42.5 |
| 2 | 56.7 |
| 2.5 | 70.9 |
| 3 | 85 |
| 3.5 | 99.2 |
| 4 | 113.4 |
| 5 | 141.7 |
| 6 | 170.1 |
| 7 | 198.4 |
| 8 | 226.8 |
| 10 | 283.5 |
| 12 | 340.2 |
| 14 | 396.9 |
| 16 | 453.6 |
| 20 | 567 |
| 24 | 680.4 |
| 32 | 907.2 |
g to oz chart
| g | oz |
|---|---|
| 1 | 0.04 |
| 5 | 0.18 |
| 10 | 0.35 |
| 14 | 0.49 |
| 20 | 0.71 |
| 25 | 0.88 |
| 28 | 0.99 |
| 30 | 1.06 |
| 40 | 1.41 |
| 50 | 1.76 |
| 60 | 2.12 |
| 75 | 2.65 |
| 80 | 2.82 |
| 100 | 3.53 |
| 113 | 3.99 |
| 125 | 4.41 |
| 150 | 5.29 |
| 170 | 6 |
| 200 | 7.05 |
| 225 | 7.94 |
| 250 | 8.82 |
| 300 | 10.58 |
| 340 | 11.99 |
| 400 | 14.11 |
| 450 | 15.87 |
| 500 | 17.64 |
| 750 | 26.46 |
| 1,000 | 35.27 |
Frequently Asked Questions
What is 1 oz in g?
1 oz is 28.3 g (1 × 28.349523).
What is 16 oz in g?
16 oz is 453.6 g (16 × 28.349523).
How many grams are in an ounce?
One ounce is 28.3495 grams (28.349523125 g exactly).
How many grams is 8 oz of cheese or meat?
8 oz × 28.3495 = 226.8 g, half a pound. Weight ounces are used for solids; liquids in US recipes are usually fluid ounces.