Fluid Ounces to Pints
Convert fluid ounces (fl oz) to pints (pt). Both measure capacity and volume, and the conversion comes up in cooking, chemistry, fuel work.
The Formula
``
pints = fluid ounces × 0.0625
fluid ounces = pints × 16
`
One fluid ounce is 0.0625 pints, and one pint is 16 fluid ounces.
Conversion Table
| Fluid Ounces | Pints |
|---|---|
| 1 fl oz | 0.0625 pt |
| 2 fl oz | 0.125 pt |
| 5 fl oz | 0.3125 pt |
| 10 fl oz | 0.625 pt |
| 25 fl oz | 1.5625 pt |
| 50 fl oz | 3.125 pt |
| 100 fl oz | 6.25 pt |
| 500 fl oz | 31.25 pt |
| 1,000 fl oz | 62.5 pt |
The Other Direction
| Pints | Fluid Ounces |
|---|---|
| 1 pt | 16 fl oz |
| 2 pt | 32 fl oz |
| 5 pt | 80 fl oz |
| 10 pt | 160 fl oz |
| 25 pt | 400 fl oz |
| 50 pt | 800 fl oz |
| 100 pt | 1,600 fl oz |
| 500 pt | 8,000 fl oz |
| 1,000 pt | 16,000 fl oz |
What Each Unit Is
Fluid Ounces (fl oz) — the US fluid ounce: exactly 29.5735295625 millilitres. One sixteenth of a US pint, descended from the wine gallon.
Pints (pt) — the US liquid pint: half a quart, or 473.176 millilitres. From the Old French pinte; the US kept the pre-1824 English measure.
A Sense of Scale
A shot is 1.5 fl oz- A soda can is 12 fl oz
- A US coffee cup is 8 fl oz
- A US pint of beer is 473 mL
- A UK pint is 568 mL
- Blood donation takes about a pint
Precision
The factor 0.0625 is rounded. For engineering work carry more digits than the table above, and round only at the end — rounding at each step compounds.
Watch Out For
- A UK fluid ounce is 28.41 mL — close enough to confuse, far enough to ruin a cocktail.
- A UK pint is 20% larger than a US pint — 568 mL against 473 mL.
In Code
`javascript
const fluidOunceToPint = (value) => value * 0.0625;
``
Where This Conversion Comes Up
- Cooking
- Chemistry
- Fuel
- Beverages
- Medicine
How Many Decimals Do You Need?
Rounding the factor costs accuracy, and how much depends on the factor. Converting 137 fl oz with the factor truncated at each decimal place:
| Decimals kept | Factor | 137 fl oz becomes | Error |
|---|---|---|---|
| 0 | 0 | 0 | 100.0000% |
| 1 | 0.1 | 13.7 | 60.0000% |
| 2 | 0.06 | 8.22 | 4.0000% |
| 3 | 0.063 | 8.631 | 0.8000% |
| 4 | 0.0625 | 8.5625 | — |
The right number of significant figures is set by your input, not by the converter. If you measured fluid ounces to three significant figures, the answer in pints is only good to three — writing more digits claims precision the measurement never had.