Five gallons of water weighs about 41.7 pounds. That’s your solid answer.
But here’s what you really need to know: don’t underestimate the weight of anything in a bucket. Gravity doesn’t care about your plans.
Next time you grab a five-gallon container, take a breath. Bend your knees. Lift with your legs. And remember—you could be carrying honey. Then you’d really be in trouble.
Now go hydrate. You’ve earned it.