Weight · Hydraulic Oil
How much does hydraulic oil weigh?
7.0–7.4 lb/gal (calculator uses 7.2) · 0.86 kg/L · specific gravity 0.84–0.89.
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| Volume | Pounds | Kilograms |
|---|---|---|
| 1 gal | 7 lb | 3 kg |
| 5 gal | 36 lb | 16 kg |
| 55 gal | 396 lb | 180 kg |
| 100 gal | 720 lb | 327 kg |
| 275 gal | 1,980 lb | 898 kg |
| 330 gal | 2,376 lb | 1,078 kg |
| 500 gal | 3,600 lb | 1,633 kg |
| 1,000 gal | 7,200 lb | 3,266 kg |
| 5,000 gal | 36,000 lb | 16,329 kg |
Basis
Mineral ISO VG 32–68 fluids per manufacturer data sheets; synthetics vary more. Liquid weight excludes the container — add tare weight for transport math. Matching tank charts: 55 gal tank · 275 gal tank · 330 gal tank · 500 gal tank · 1000 gal tank.
FAQ
How much does a gallon of hydraulic oil weigh?
7.0–7.4 lb/gal (calculator uses 7.2). That is 0.86 kg per litre (SG 0.84–0.89).
How much does a 55-gallon drum of hydraulic oil weigh?
About 396 lb of liquid, plus roughly 40–50 lb for a steel drum. A brim-full drum actually holds ~57.7 gal — see the drum chart.
Why a range instead of one number?
Grades and blends differ in API gravity, so an honest figure is a span; the calculator uses the typical mid value.