How Much Heating Oil Do I Need?
Not sure when to place your online oil order on PayLessForOil.com? We can tell you when to place your order based on your tank’s current gauge reading for the most common residential tank sizes we see in Western MA and North Central CT. If you have more questions regarding your tank gauge or delivery, please reach out to our experts.
Heating Oil Tank Reference Chart
These charts are based on 275- and 330-gallon tanks, two of the most common residential heating oil tank sizes.
- 275 Gallon Tank
- 330 Gallon Tank
| GAUGE READS | APPROX. REMAINING FUEL | MAX REMAINING FUEL CAPACITY | ORDER NO MORE THAN | |
| Full | 260 Gallons | NONE | WE DO NOT RECOMMEND THAT YOU ORDER FUEL | |
| 7/8 | 235 Gallons | 25 Gallons | ||
| 3/4 | 200 Gallons | 60 Gallons | ||
| 5/8 | 160 Gallons | 100 Gallons | ||
| 1/2 | 130 Gallons | 130 Gallons | 125 Gallons | |
| 3/8 | 100 Gallons | 160 Gallons | 150 Gallons | |
| 1/4 | 70 Gallons | 190 Gallons | 175 Gallons | ![]() |
| 1/8 | 30 Gallons | 230 Gallons | 200 Gallons |
| GAUGE READS | APPROX. REMAINING FUEL | MAX REMAINING FUEL CAPACITY | ORDER NO MORE THAN | |
| Full | 300 Gallons | NONE | WE DO NOT RECOMMEND THAT YOU ORDER FUEL | |
| 7/8 | 260 Gallons | 40 Gallons | ||
| 3/4 | 225 Gallons | 75 Gallons | ||
| 5/8 | 190 Gallons | 110 Gallons | 100 Gallons | |
| 1/2 | 150 Gallons | 150 Gallons | 125 Gallons | |
| 3/8 | 115 Gallons | 185 Gallons | 175 Gallons | |
| 1/4 | 75 Gallons | 225 Gallons | 200 Gallons | ![]() |
| 1/8 | 40 Gallons | 260 Gallons | 250 Gallons |

How to Read an Oil Tank Gauge
The heating oil gauge is usually on top of the tank. It’s a small, clear tube or window with a floating marker and numbers like F, 3/4, 1/2, and 1/4. The fraction that the floating marker is pointing to indicates your current oil level.
We always suggest checking your level regularly and scheduling a delivery when your tank gauge reads ¼ or lower to avoid the risk of an emergency runout.
