US Pints to US Fluid Ounces (pt to fl oz)
1 US pint equals 16 US fluid ounces exactly.
How to convert US pints to US fluid ounces
To convert US pints to US fluid ounces, multiply the number of US pints by 16. This factor is exact. To go the other way, multiply US fluid ounces by 0.0625.
US fluid ounces = US pints × 16
Example: 10 US pints = 160 US fluid ounces.
Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.
About these units
US Pint (pt)
One eighth of a US gallon, 473.176 mL (16 US fluid ounces). The US pint is about 17% smaller than the imperial pint.
Pint seems to come from Old French pinte, possibly from a Latin word meaning painted, perhaps because capacity marks were painted on containers. British North America inherited the 231-cubic-inch wine gallon around 1707, and the US liquid pint was derived from it as one eighth. After Britain adopted the imperial gallon in 1824, American and British pints parted ways for good.
Today the US liquid pint is exactly 28.875 cubic inches, or 473.176473 milliliters. The imperial pint, at 568.26125 mL, is about 20 percent larger. That is why a pint of beer in an American bar is a lesser drink than a pint in an English pub, and why recipes from different countries cannot swap pints blindly. In the US a pint is a common size for ice cream, cream and craft beer, and a separate US dry pint of about 550.6 milliliters measures blueberries and cherry tomatoes.
1 US pint = 0.473176473 liters (exactly).
Sources: Wikipedia: Pint; NIST SP 811, Appendix B.8: conversion factors for volume
US Fluid Ounce (fl oz)
One 128th of a US gallon, 29.5735 mL. Not the same as the weight ounce, and about 4% larger than the imperial fluid ounce.
Fluid ounce began as an attempt to link volume to weight: the volume occupied by one ounce of some substance, such as wine in England or water in Scotland. Definitions varied by region and by liquid. When Britain defined its imperial gallon in 1824 as the space of ten pounds of water, the imperial fluid ounce came out so that an ounce of water weighs about one avoirdupois ounce. The US fluid ounce followed a different path and comes from the older wine gallon.
The US fluid ounce is exactly 1/128 of a US gallon, 29.5735295625 milliliters, about 4 percent bigger than the imperial one at 28.4130625 milliliters. American nutrition labels use yet another figure, treating one fluid ounce as 30 milliliters, a convenient rounding for serving sizes. The name is a trap, because a fluid ounce measures space while a weight ounce measures mass. A US fluid ounce of water weighs a bit more than an ounce of weight, while a fluid ounce of honey weighs considerably more.
1 US fluid ounce = 0.02957352956 liters (approximately).
Sources: Wikipedia: Fluid ounce; NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures
Related conversions
- US fluid ounces to US pints (reverse)
- US pints to liters
- US pints to milliliters
- US pints to US gallons
- US pints to US cups
- US pints to cubic meters
- US pints to cubic centimeters
- US pints to US quarts
- US pints to US tablespoons
- US pints to US teaspoons
- US pints to metric cups
- US pints to metric tablespoons
- US pints to metric teaspoons
- Liters to US fluid ounces
- Milliliters to US fluid ounces
- US gallons to US fluid ounces
- US cups to US fluid ounces
- Cubic meters to US fluid ounces
- Cubic centimeters to US fluid ounces
- US quarts to US fluid ounces
- US tablespoons to US fluid ounces
- US teaspoons to US fluid ounces
- Metric cups to US fluid ounces
- Metric tablespoons to US fluid ounces
- Metric teaspoons to US fluid ounces
See all volume units.