Fluid Ounces to Ounces Weight Calculator
Convert liquid volume (fl oz) directly into avoirdupois weight ounces (oz wt) for kitchen and postal scales.
16 fl oz × 1.000 g/mL × 1.04318 = 16.69 oz wt
Fluid Ounces vs. Weight Ounces (Water at 1.00 g/mL)
| Liquid Volume (fl oz) | Digital Scale Weight (oz wt) | Weight (Pounds / lbs) | Metric (Grams) | Difference vs. Raw Number |
|---|---|---|---|---|
| 1 fl oz | 1.04 oz | 0.065 lb | 29.6 g | +4.3% heavier |
| 2 fl oz | 2.09 oz | 0.130 lb | 59.1 g | +4.3% heavier |
| 4 fl oz | 4.17 oz | 0.261 lb | 118.3 g | +4.3% heavier |
| 8 fl oz | 8.35 oz | 0.522 lb | 236.6 g | +4.3% heavier |
| 12 fl oz | 12.52 oz | 0.782 lb | 354.9 g | +4.3% heavier |
| 16 fl oz | 16.69 oz | 1.043 lb | 473.2 g | +4.3% heavier |
| 24 fl oz | 25.04 oz | 1.565 lb | 709.8 g | +4.3% heavier |
| 32 fl oz | 33.38 oz | 2.086 lb | 946.4 g | +4.3% heavier |
| 48 fl oz | 50.07 oz | 3.130 lb | 1419.5 g | +4.3% heavier |
| 64 fl oz | 66.76 oz | 4.173 lb | 1892.7 g | +4.3% heavier |
| 128 fl oz | 133.53 oz | 8.345 lb | 3785.4 g | +4.3% heavier |
Frequently Asked Questions: Fluid Ounces to Ounces
How do you convert fluid ounces to ounces weight?
Multiply fluid ounces by the substance density (in g/mL) and by 1.04318. For pure water, 16 fl oz × 1.00 × 1.04318 = 16.69 avoirdupois weight ounces.
Why is 16 fl oz of water not 16 oz weight?
One US fluid ounce equals 29.5735 mL, which weighs 29.57 grams of water. But one ounce of weight equals 28.3495 grams. Since 29.57 > 28.35, one fluid ounce of water weighs 1.043 weight ounces (4.3% more).
What liquid has 1 fl oz equal to exactly 1 oz weight?
A liquid with a density of 0.9586 g/mL (such as certain warm light oils or 45% ABV alcohol solutions) will have 1 US fluid ounce weigh exactly 1.000 ounce avoirdupois.
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