Metric Tablespoons to US Fluid Ounces (tbsp to fl oz)
1 metric tablespoon equals 0.5072103405 US fluid ounces (rounded).
How to convert metric tablespoons to US fluid ounces
To convert metric tablespoons to US fluid ounces, multiply the number of metric tablespoons by 0.5072103405. The factor is rounded to 10 significant digits. To go the other way, multiply US fluid ounces by 1.971568638 (rounded).
US fluid ounces = metric tablespoons × 0.5072103405
Example: 10 metric tablespoons = 5.072103405 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
Metric Tablespoon (tbsp)
Exactly 15 mL, used in most countries.
Fifteen milliliters is the working size of the tablespoon in most of the world, and it is a rounded figure. Older customary values were about 14.8 mL for the US and about 14.2 mL for the UK, and modern UK and US measuring spoons are both treated as 15 mL in most contexts. The tablespoon itself dates to the early 1700s, when it first appeared in place settings for soup.
The 15 mL spoon is a staple in recipes everywhere. Three metric teaspoons make a tablespoon, and 16 and two thirds make a 250 mL metric cup. Australia is the notable exception, using a 20 milliliter tablespoon and counting four teaspoons to it, so a recipe from one country can taste off in another. Check which spoon a cook has in mind: scoops of oil, honey or baking powder amount to a third more in Australia.
1 metric tablespoon = 0.015 liters (exactly).
Sources: Wikipedia: Tablespoon; Wikipedia: Metric cup
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 metric tablespoons (reverse)
- Metric tablespoons to liters
- Metric tablespoons to milliliters
- Metric tablespoons to US gallons
- Metric tablespoons to US cups
- Metric tablespoons to cubic meters
- Metric tablespoons to cubic centimeters
- Metric tablespoons to US quarts
- Metric tablespoons to US pints
- Metric tablespoons to US tablespoons
- Metric tablespoons to US teaspoons
- Metric tablespoons to metric cups
- Metric tablespoons 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 pints to US fluid ounces
- US tablespoons to US fluid ounces
- US teaspoons to US fluid ounces
- Metric cups to US fluid ounces
- Metric teaspoons to US fluid ounces
See all volume units.