Jiggers to US Fluid Ounces (jigger to fl oz)
1 jigger equals 1.5 US fluid ounces exactly.
How to convert jiggers to US fluid ounces
To convert jiggers to US fluid ounces, multiply the number of jiggers by 1.5. This factor is exact. To go the other way, multiply US fluid ounces by 0.6666666667 (rounded).
US fluid ounces = jiggers × 1.5
Example: 10 jiggers = 15 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
Jigger (jigger)
1.5 US fluid ounces (44.36 mL). A bar measure for spirits; sizes vary.
As a bartending term, jigger appeared in the United States in the early nineteenth century for a small measure of spirits or wine. A double-ended stainless steel jigger was patented in 1893 by Cornelius Dungan of Chicago. Wikipedia reports that before Prohibition an American jigger was about 2 US fluid ounces, or 59 mL, and that since the late twentieth century it has usually meant 1.5 US fluid ounces, about 44 mL.
Sizes differ by country and by habit. Wikipedia gives single measures of 30 to 44 mL in the United States, 30 mL in Australia, and 25 or 35 mL in the United Kingdom. No official single-shot size exists in the United States except in Utah, where a shot is legally 1.5 US fluid ounces. The figure used here is that modern American 1.5 US fluid ounces, 44.36 mL. A jigger is not part of SI or any national measures law, and NIST lists no jigger.
1 jigger = 0.04436029434 liters (approximately).
Sources: Wikipedia: Jigger (bartending); NIST SP 811 Appendix B.8
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 jiggers (reverse)
- Jiggers to liters
- Jiggers to milliliters
- Jiggers to US gallons
- Jiggers to US cups
- 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 pints 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
See all volume units.