How to convert gallons to cubic yards
One cubic yard equals about 201.97 US liquid gallons, so divide gallons by 201.97 to get cubic yards. This is handy for tanks, ponds, and pools.
Gallons to Cubic Yards table
Use the table to check your answer or to find common values quickly. It uses the same math as the calculator above.
| Us gallons | Cubic yards |
|---|---|
| 10 US gallons | 0.05 |
| 50 US gallons | 0.25 |
| 100 US gallons | 0.49 |
| 202 US gallons | 1 |
| 500 US gallons | 2.48 |
| 1,000 US gallons | 4.95 |
Worked example
Suppose you have 100 US gallons. Using the same factors as the calculator, that equals 0.495 cubic yards. Round up when you are ordering material, because a small shortage costs more than a small surplus.
Frequently asked questions
How do I convert gallons to cubic yards?
One cubic yard equals about 201.97 US liquid gallons, so divide gallons by 201.97 to get cubic yards. This is handy for tanks, ponds, and pools.
How many cubic yards are in 1 US gallon?
1 US gallons equals 0.01 cubic yards.
Is the conversion exact?
Volume to volume conversions are exact. Anything involving weight, bags, area, or loads relies on a material or size you choose, so those answers are estimates.
Should I round up?
Yes. When buying material, round up to the next quarter or half yard and add a small allowance.