Metric Tablespoons to US Gallons (tbsp to gal)
1 metric tablespoon equals 0.003962580785 US gallons (rounded).
How to convert metric tablespoons to US gallons
To convert metric tablespoons to US gallons, multiply the number of metric tablespoons by 0.003962580785. The factor is rounded to 10 significant digits. To go the other way, multiply US gallons by 252.3607856.
US gallons = metric tablespoons × 0.003962580785
Example: 10 metric tablespoons = 0.03962580785 US gallons.
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 Gallon (gal)
Exactly 231 cubic inches or 3.785411784 liters (128 US fluid ounces). About 17% smaller than the imperial gallon.
The US gallon is a survivor of English wine trade. Around 1706, a statute in Queen Anne's reign fixed the wine gallon at exactly 231 cubic inches, settling confusion among the competing gallons for wine, ale and corn. British colonies in North America used that wine gallon, and in 1824 Britain replaced all its gallons with a new imperial one while the United States kept the old measure. It was adopted as the legal US standard in 1836 and is still defined as exactly 231 cubic inches, or 3.785411784 liters.
That makes the US gallon about 17 percent smaller than the imperial gallon, a difference that explains why American and British fuel-economy figures cannot be compared directly. Everyday uses are milk jugs, paint cans and gasoline pumps. One gallon divides evenly into four quarts, eight pints, sixteen cups and 128 fluid ounces. A gallon of water weighs a little over 8 pounds, an easy figure to remember when loading a car with water jugs.
1 US gallon = 3.785411784 liters (exactly).
Sources: Wikipedia: Gallon; NIST SP 811, Appendix B.8: conversion factors for volume
Related conversions
- US gallons to metric tablespoons (reverse)
- Metric tablespoons to liters
- Metric tablespoons to milliliters
- Metric tablespoons to US cups
- Metric tablespoons to US fluid ounces
- 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 gallons
- Milliliters to US gallons
- US cups to US gallons
- US fluid ounces to US gallons
- Cubic meters to US gallons
- Cubic centimeters to US gallons
- US quarts to US gallons
- US pints to US gallons
- US tablespoons to US gallons
- US teaspoons to US gallons
- Metric cups to US gallons
- Metric teaspoons to US gallons
See all volume units.