a Full 275 Gallon Oil Tank — the weight
Short answer: about 1,800 lb of liquid (816 kg). The longer answer below includes the container, the handling math, and the mistakes to avoid.
Careful with the premise: a "full" 275 tank holds about 250 gallons, not 275 — suppliers leave expansion room. At ~7.2 lb/gal that's ~1,800 lb of oil, plus roughly 250–300 lb for the 12-gauge steel tank: call it 2,050–2,100 lb standing on four small legs.
That's why tank legs need a solid pad: ~500 lb per leg concentrated on a few square inches punches through asphalt on a hot day and tips on soft ground. Code and common sense both want a concrete pad or patio blocks rated for the point load — a square footage calculator sizes the slab area and the concrete you’ll pour.
For any other fill level, it's chart inches × 7.2: the 275V chart says 16 inches is ~92 gallons, so ~660 lb of oil at that level. Geometric brim-full (267.9 gal) would be ~1,930 lb of oil — a number you should never actually see.
FAQ
How much does a Full 275 Gallon Oil Tank Weigh?
About 1,800 lb of liquid (816 kg) at 7.2 lb/gal, plus the container's tare weight — details above.
Where do these densities come from?
From the cited reference values on our weight library and methodology pages, each with grade ranges and temperature basis stated.