Weight · Coolant 50/50
How much does coolant 50/50 weigh?
8.8–9.0 lb/gal (calculator uses 8.94) · 1.07 kg/L · specific gravity 1.06–1.08.
—
| Volume | Pounds | Kilograms |
|---|---|---|
| 1 gal | 9 lb | 4 kg |
| 5 gal | 45 lb | 20 kg |
| 55 gal | 492 lb | 223 kg |
| 100 gal | 894 lb | 406 kg |
| 275 gal | 2,458 lb | 1,115 kg |
| 330 gal | 2,950 lb | 1,338 kg |
| 500 gal | 4,470 lb | 2,028 kg |
| 1,000 gal | 8,940 lb | 4,055 kg |
| 5,000 gal | 44,700 lb | 20,276 kg |
Basis
50/50 ethylene glycol–water premix near 60°F (EG SG 1.113 diluted by volume). Propylene-glycol mixes run slightly lighter. 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 coolant 50/50 weigh?
8.8–9.0 lb/gal (calculator uses 8.94). That is 1.07 kg per litre (SG 1.06–1.08).
How much does a 55-gallon drum of coolant 50/50 weigh?
About 492 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.