US liquid gallon to US liquid quart
gal
qt
Conversion History
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|---|---|---|
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Quick Reference Table (US liquid gallon to US liquid quart)
| US liquid gallon (gal) | US liquid quart (qt) |
|---|---|
| 0.5 | 1.9999999999383097848 |
| 1 | 3.9999999998766195696 |
| 2 | 7.9999999997532391392 |
| 5 | 19.999999999383097848 |
| 10 | 39.999999998766195696 |
| 50 | 199.99999999383097848 |
About US liquid gallon (gal)
The US liquid gallon is a unit of volume equal to 4 quarts, 8 pints, or 128 US fluid ounces, approximately 3.785 liters. It is the primary large liquid volume unit in the United States, used for fuel pricing at the pump, milk and juice packaging, and paint. US fuel economy is measured in miles per gallon (MPG). The US gallon is about 17% smaller than the UK imperial gallon (4.546 L), causing significant differences in fuel economy comparisons.
A gallon jug of milk is 3.785 L. Petrol (gasoline) is priced per US gallon at every US fuel station.
About US liquid quart (qt)
The US liquid quart (qt) is a unit of volume equal to 2 US liquid pints or 32 US fluid ounces, approximately 946.4 milliliters. It is used for beverages, dairy products, soups, and motor oil in the United States. Motor oil is typically sold in 1-quart bottles. Soups, broths, and juices are commonly packaged in 32-oz (1-quart) cartons. The US liquid quart is smaller than the imperial quart (1,136.5 mL).
A standard carton of chicken broth is 32 fl oz (1 qt, ~946 mL). Motor oil is sold in 1-quart bottles.
US liquid gallon – Frequently Asked Questions
Why does the US still price fuel per gallon when the rest of the world uses liters?
US fuel infrastructure — pumps, tax law, pipeline contracts, and consumer expectations — is built around the gallon. Federal and state fuel taxes are levied per gallon; EPA fuel economy standards use miles per gallon; and consumers benchmark prices against a gallon reference ("$3 a gallon"). Switching to liters would require reprogramming every pump, rewriting tax code, and re-educating 330 million people who compare prices by the gallon. Canada made the switch in the 1970s during a broader metrication push, but the US never had the political will for a comprehensive changeover.
Why is the US gallon smaller than the UK gallon?
The US gallon (3.785 L) is based on the Queen Anne wine gallon of 1707 (231 cubic inches). The UK imperial gallon (4.546 L) was defined in 1824 as the volume of 10 pounds of water. The two systems diverged after US independence.
How does US MPG compare to L/100km?
To convert: L/100km = 235.2 ÷ MPG (US). A car achieving 30 MPG uses about 7.8 L/100km. UK MPG values are always higher than US MPG for the same car because the imperial gallon is larger.
How many gallons of water does a person drink per day?
Recommended daily water intake is about 2–3 liters (roughly 0.5–0.8 US gallons). The commonly cited "8 glasses a day" ≈ 64 fl oz ≈ 0.5 gallons ≈ 1.9 liters.
How many gallons does a car fuel tank hold?
Most US passenger cars have fuel tanks of 10–20 gallons (38–76 liters). Compact cars are typically 10–13 gallons; mid-size cars 14–17 gallons; SUVs and trucks 18–36 gallons.
US liquid quart – Frequently Asked Questions
How many cups are in a quart?
There are 4 US cups in one US liquid quart: 1 quart = 32 fl oz and 1 cup = 8 fl oz. The full chain: 2 cups = 1 pint, 2 pints = 1 quart, 4 quarts = 1 gallon.
How many milliliters are in a quart?
One US liquid quart equals approximately 946.4 mL (just under one liter). One imperial quart equals approximately 1,136.5 mL.
Why is motor oil sold in quarts in the US?
Most car engines require 4–6 quarts of oil per oil change, making the quart a practical single-container size. In metric countries, motor oil is sold in 1-liter or 4-liter containers.
How does a US quart compare to a liter?
One US quart (946 mL) is about 5.7% smaller than one liter (1,000 mL). Substituting 1 L for 1 qt adds about 54 mL — usually negligible in large-batch cooking.
What is the difference between a liquid quart and a dry quart?
A US liquid quart is 946.4 mL; a US dry quart is 1,101.2 mL — about 16% larger. Dry quarts are used for grain, produce, and dry goods. The distinction matters in agricultural and commercial contexts.