1000 Gallon Propane Tank chart
Geometric capacity 1,000 gallons. Maximum fill 80% (~800 gal propane).
| Depth | Gallons | Liters | % Full |
|---|---|---|---|
| 1″ | 6 | 23 | 1% |
| 2″ | 18 | 66 | 2% |
| 3″ | 32 | 121 | 3% |
| 4″ | 49 | 186 | 5% |
| 5″ | 68 | 258 | 7% |
| 6″ | 89 | 338 | 9% |
| 7″ | 112 | 423 | 11% |
| 8″ | 136 | 513 | 14% |
| 9″ | 161 | 608 | 16% |
| 10″ | 187 | 708 | 19% |
| 11″ | 214 | 810 | 21% |
| 12″ | 242 | 916 | 24% |
| 13″ | 271 | 1,025 | 27% |
| 14″ | 300 | 1,136 | 30% |
| 15″ | 330 | 1,249 | 33% |
| 16″ | 360 | 1,364 | 36% |
| 17″ | 391 | 1,480 | 39% |
| 18″ | 422 | 1,597 | 42% |
| 19″ | 453 | 1,715 | 45% |
| 20″ | 484 | 1,833 | 48% |
| 21″ | 516 | 1,952 | 52% |
| 22″ | 547 | 2,070 | 55% |
| 23″ | 578 | 2,188 | 58% |
| 24″ | 609 | 2,306 | 61% |
| 25″ | 640 | 2,422 | 64% |
| 26″ | 670 | 2,536 | 67% |
| 27″ | 700 | 2,650 | 70% |
| 28″ | 729 | 2,761 | 73% |
| 29″ | 758 | 2,869 | 76% |
| 30″ | 786 | 2,975 | 79% |
| 31″ | 813 | 3,078 | 81% |
| 32″ | 839 | 3,177 | 84% |
| 33″ | 864 | 3,272 | 86% |
| 34″ | 888 | 3,363 | 89% |
| 35″ | 911 | 3,448 | 91% |
| 36″ | 932 | 3,527 | 93% |
| 37″ | 951 | 3,600 | 95% |
| 38″ | 968 | 3,664 | 97% |
| 39″ | 982 | 3,719 | 98% |
| 40″ | 994 | 3,762 | 99% |
| 41″ | 1,000 | 3,785 | 100% |
Reading the gauge (don't stick a propane tank)
Propane vessels are sealed pressure vessels — you never open or stick them. Read the float gauge on top: it shows percent of water capacity, and gallons of propane = gauge % × water capacity. The inch table below is the underlying geometry, useful for cross-checking a suspect gauge against a delivery ticket. Maximum legal fill is 80%, so a healthy gauge tops out around there after a delivery.
About this chart
Source geometry: Nominal 41 in dia ASME vessel; length solved to nameplate capacity.. Values are computed with exact partial-fill formulas (see methodology) — a circular/obround segment for the shell, plus dished-head volume solved so total capacity equals nameplate water capacity.
Propane note: your float gauge reads percent of water capacity. Gallons of propane = gauge % × 1000. Maximum legal fill is 80%.
FAQ
How many gallons are in my 1000 gallon propane tank at half depth?
About 516 gallons. Use the stick reader above for any depth.
Where do I measure from?
From the inside bottom of the tank, straight up to the wet line on your stick. Keep the stick vertical.
Why does my manufacturer chart differ by a gallon or two?
Manufacturer charts account for that tank's exact head shape and fittings; this chart is exact for the stated geometry. Differences are typically 1–3%. Maximum fill 80% (~800 gal propane).