20 quarts (qt) is equal to 5 gallons (gal).
To convert quarts to gallons, divide the number of quarts by 4, since there are 4 quarts in 1 gallon. Thus, 20 qt ÷ 4 = 5 gal.
Conversion Tool
Result in gal:
Conversion Formula
The conversion formula to change quarts (qt) into gallons (gal) is:
Gallons = Quarts ÷ 4
Because 1 gallon contains exactly 4 quarts, dividing the number of quarts by 4 gives the equivalent gallons. This works by grouping every 4 quarts into 1 gallon unit.
Example calculation:
- Start with 20 quarts.
- Divide 20 by 4 (since 4 quarts = 1 gallon): 20 ÷ 4 = 5.
- The result is 5 gallons.
Conversion Example
- Convert 12 qt to gal:
- Divide 12 by 4: 12 ÷ 4 = 3.
- So, 12 quarts equals 3 gallons.
- Convert 7.5 qt to gal:
- Divide 7.5 by 4: 7.5 ÷ 4 = 1.875.
- Thus, 7.5 quarts is 1.875 gallons.
- Convert 32 qt to gal:
- Divide 32 by 4: 32 ÷ 4 = 8.
- Therefore, 32 quarts equals 8 gallons.
- Convert 4 qt to gal:
- Divide 4 by 4: 4 ÷ 4 = 1.
- So, 4 quarts is 1 gallon.
Conversion Chart
This chart shows values from -5.0 to 45.0 quarts converted to gallons by dividing each value by 4. Use it to quickly find gallons without calculation.
| Quarts (qt) | Gallons (gal) |
|---|---|
| -5.0 | -1.25 |
| -2.5 | -0.625 |
| 0.0 | 0.00 |
| 2.5 | 0.625 |
| 5.0 | 1.25 |
| 7.5 | 1.875 |
| 10.0 | 2.5 |
| 12.5 | 3.125 |
| 15.0 | 3.75 |
| 17.5 | 4.375 |
| 20.0 | 5.00 |
| 22.5 | 5.625 |
| 25.0 | 6.25 |
| 27.5 | 6.875 |
| 30.0 | 7.5 |
| 32.5 | 8.125 |
| 35.0 | 8.75 |
| 37.5 | 9.375 |
| 40.0 | 10.0 |
| 42.5 | 10.625 |
| 45.0 | 11.25 |
Related Conversion Questions
- How many gallons make up 20 quarts exactly?
- If I have 20 qt, how much is it in gallons and quarts combined?
- What is the quickest way to convert 20 quarts into gallons?
- Is 20 quarts more or less than 6 gallons?
- How to convert 20 qt to gallons without a calculator?
- Can 20 quarts be expressed as a decimal number of gallons?
- What formula do I use to convert 20 quarts into gallons?
Conversion Definitions
Quart (qt): A quart is a unit of volume in the US customary and imperial systems. It equals a quarter of a gallon or two pints. It is used for measuring liquids like milk or fuel. One quart is approximately 0.946 liters in the US system.
Gallon (gal): A gallon is a larger volume unit used mainly in the US and UK for liquids. The US liquid gallon equals 4 quarts or 128 fluid ounces. It is roughly 3.785 liters. Gallons are common for measuring gasoline, milk, and other liquids.
Conversion FAQs
Why do I divide quarts by 4 to get gallons?
Because one gallon contains exactly four quarts, dividing the number of quarts by 4 converts it to gallons by grouping every 4 quarts into 1 gallon. It reflects the direct relationship between the two units.
Can I convert quarts to gallons for dry ingredients the same way?
No, quarts and gallons measure volume, so they can be used for liquids. Dry ingredients often require weight or dry volume measurements, which may differ. For dry ingredients, using volume units like cups or liters is more accurate.
Are US gallons and UK gallons the same when converting from quarts?
They differ. The US gallon equals 4 US quarts, but the UK (imperial) gallon equals 4 imperial quarts, which have different sizes. This conversion assumes US customary units. For UK gallons, the conversion factor changes slightly.
What happens if I enter negative quarts in the conversion tool?
The tool will calculate gallons for negative values by dividing by 4, giving negative gallons. Though negative volume is not physically meaningful, mathematically the conversion still works.
Does the conversion formula change for fractional quarts?
No, fractional quarts convert the same way by dividing the decimal value by 4. For example, 7.5 quarts divided by 4 equals 1.875 gallons. The formula applies equally to whole and fractional quantities.