FL OZ to Pounds Converter
Use this free fl oz to pounds converter to accurately convert fluid ounces to pounds using density-aware formulas for US Customary and Imperial fluid ounces.
- What is a fl oz to pounds converter?
- A fl oz to pounds converter is a tool that transforms fluid ounces (a unit of volume) into pounds (a unit of mass). Because different liquids have different densities, the conversion requires multiplying the fl oz amount by the liquid's density (g/ml) and a volume constant, then dividing by 453.59237. For water at 1.00 g/ml: 1 US fl oz = 0.06520 lb.
- What is 1 fl oz in pounds?
- 1 US fluid ounce of water = approximately 0.06520 lb (65.20 grams ÷ 453.59). For other liquids, multiply by the liquid's density: milk ≈ 0.0671 lb, honey ≈ 0.0926 lb, olive oil ≈ 0.0593 lb per fl oz.
Common fl oz to Pounds Conversions (Water)
The fl oz to Pounds Formula
To convert fl oz to pounds, multiply the volume by the liquid's density and the volume constant, then divide by the pounds-per-gram constant:
lb = fl oz × density (g/ml) × volume constant ÷ 453.59237 Volume constant: 29.5735295625 ml per fl oz
Volume constant: 28.4130625 ml per fl oz
fl oz to Pounds Conversion Chart — Water (US)
| FL OZ | Pounds (lb) | Note |
|---|---|---|
| 1 | 0.0652 | — |
| 2 | 0.1304 | — |
| 4 | 0.2608 | — |
| 6 | 0.3912 | — |
| 8 | 0.5216 | — |
| 10 | 0.6520 | — |
| 12 | 0.7824 | — |
| 16 | 1.0432 | 1 pint / 1 cup |
| 20 | 1.3040 | — |
| 24 | 1.5648 | — |
| 32 | 2.0864 | 1 quart |
| 40 | 2.6079 | — |
| 48 | 3.1295 | — |
| 64 | 4.1727 | ½ gallon |
| 80 | 5.2159 | — |
| 96 | 6.2591 | — |
| 128 | 8.3454 | 1 gallon |
Liquid Densities & fl oz to Pounds Reference
Different liquids weigh differently at the same volume. Use our calculator above or this reference table:
| Liquid | Density (g/ml) | 16 fl oz → lb |
|---|---|---|
| Water | 1.000 | 1.0432 |
| Milk | 1.030 | 1.0745 |
| Olive Oil | 0.910 | 0.9493 |
| Honey | 1.420 | 1.4813 |
| Gasoline | 0.737 | 0.7688 |
| Diesel Fuel | 0.850 | 0.8867 |
| Vinegar | 1.006 | 1.0494 |
Dedicated Calculators
Select a calculator optimised for a specific liquid or measurement:
Frequently Asked Questions — FL OZ to Pounds
Can FL OZ to pounds be converted directly?
Only with density. Volume and mass are different measurements.
Are US and Imperial fl oz to pounds conversions the same?
No. US fluid ounces (29.57 mL) and Imperial fluid ounces (28.41 mL) use different volume constants when converting fl oz to pounds.
Does the FL OZ to pounds result change for milk or oil?
Yes. Milk (density 1.03 g/mL) is heavier and oil (0.91 g/mL) is lighter than water, so 16 fl oz of each produces a different pound weight.