How Much Water Does a Duck Need?

Our feed guide covers dry matter intake, but water is a genuinely bigger deal for ducks than for most backyard poultry — and it's also the figure we're most honest about not having pinned down to a precise number.

A real gap: no duck-specific quantified figure

University of Kentucky poultry extension guidance gives a general “poultry” rule of thumb — roughly twice as much water as feed by weight — but its dedicated meat-duck care guide doesn't attach a specific number to ducks the way its laying-hen guidance does for chickens. Rather than apply a chicken-derived ratio to a bird whose water needs are described as considerably higher, we're disclosing this as a genuine sourcing gap.

What the same source does say: “drink a lot of water”

University of Kentucky poultry extension guidance is direct about the practical consequence, even without a number: ducks drink a lot of water, resulting in noticeably watery manure that has to be cleaned out daily — a genuinely different maintenance routine from keeping chickens, where the same source's laying-hen guidance doesn't make the same claim.

Drinking water, not swimming water

It's worth separating two different water needs. University of Kentucky poultry extension guidance is specific that ducks don't need water deep enough to swim in for their basic care — only fresh water to drink. They do like to splash, though, so choose a waterer that limits spillage rather than an open dish, and see our space guide for the separate question of water deep enough to submerge the head, which matters for eye and nostril health even though it isn't about drinking.

What this means for your setup

• Expect noticeably wetter bedding and more frequent litter changes than the same headcount of chickens would need — plan cleaning routines around that rather than being caught out by it.
• Choose a waterer designed to limit splashing and spillage, since ducks actively enjoy playing in their water source.
• If a precise gallons-per-day figure matters for your setup, ask a waterfowl-experienced vet or hatchery rather than relying on a chicken-derived estimate — we'd rather say so than guess.

Sources: University of Kentucky, Small and Backyard Poultry Extension(Dr. Jacquie Jacob), “Raising Meat Ducks in Small and Backyard Flocks” and “Basic Poultry Nutrition”: poultry.extension.org. Sources checked: September 2026.

Common questions

How much water does a duck drink a day?

We haven't found a precise duck-specific gallons-per-day figure from a qualifying source. University of Kentucky poultry extension guidance covers ducks as "poultry" under its general rule of thumb — roughly twice as much water as feed by weight — and separately confirms ducks "drink a lot of water," but doesn't give ducks their own quantified number the way it does for laying hens.

Do ducks really drink more than chickens?

University of Kentucky poultry extension guidance says so directly, in its meat-duck care guide: ducks "drink a lot of water," resulting in noticeably watery manure that needs cleaning daily — a genuinely different maintenance routine from a chicken coop.

Do ducks need a swimming pool for drinking water?

No — University of Kentucky poultry extension guidance is specific that ducks don't need water to swim in, only fresh water to drink. They do like to splash, though, so a waterer that limits spillage is worth choosing over an open dish.

The water calculator works out daily totals for the other species; for ducks it explains why there isn't a single sourced figure to multiply.