Duck Egg Incubation Calculator
This duck egg incubation calculator finds the expected hatch date instantly. Enter the date you set the eggs to calculate the incubation period for your breed — including the notably longer Muscovy timeline — and view the candling and lockdown schedule.
Quick Answer
Duck egg incubation takes 28 days on average for most breeds — Muscovy ducks take about 35 days. Enter your set date above and select the breed to calculate the exact expected hatch date, humidity guide, and candling schedule.
Duck (Egg Incubation) Egg Incubation Calculator
Free tool — no signup required
How to Use This Calculator
Enter the date you set the eggs in the incubator using the date picker. Select the breed from the dropdown — this matters more for ducks than for most poultry, since Muscovy ducks take a full week longer than every other common breed. Click Calculate Due Date to see the expected hatch date, the earliest and latest dates in the normal range, and a full milestone timeline.
If you're incubating a mixed clutch of Muscovy and standard duck eggs together, track them separately — setting them on the same date but expecting them to hatch a week apart is completely normal and not a sign anything is wrong.
How Long Do Duck Eggs Take to Hatch?
Most domestic duck breeds — Pekin, Khaki Campbell, Rouen, and Call Duck — take 28 days to hatch. Muscovy ducks are the major exception at approximately 35 days, since Muscovy are a genetically distinct species from the mallard-derived breeds that make up most other domestic ducks.
Days 1–7: The embryo begins forming. Duck eggshells are often thicker and more opaque than chicken eggshells, so the day-7 candling check can be harder to read clearly — use a bright, focused candling light.
Days 7–14: Growth continues steadily and the embryo takes shape. Many duck keepers begin a daily brief cooling period around this stage — misting the eggs and letting them cool for a few minutes, mimicking a hen duck briefly leaving the nest.
Days 14–28 (or 14–35 for Muscovy): The duckling grows to fill the egg. Lockdown begins around day 25 for standard breeds (day 32 for Muscovy) — turning stops and humidity rises significantly to prepare for hatching.
Incubation Period in Days, Weeks and Months
| Measurement | Standard Breeds | Muscovy |
|---|---|---|
| Days | 28 days | 35 days |
| Weeks | 4.0 weeks | 5.0 weeks |
| Months | 0.9 months | 1.2 months |
Incubation Period by Duck Breed
| Breed | Avg. Incubation (Days) | Notes |
|---|---|---|
| Pekin | 28 days | Mallard-derived breed; standard 28-day timing |
| Mallard | 28 days | Mallard-derived breed; standard 28-day timing |
| Khaki Campbell | 28 days | Mallard-derived breed; standard 28-day timing |
| Rouen | 28 days | Mallard-derived breed; standard 28-day timing |
| Runner | 28 days | Mallard-derived breed; standard 28-day timing |
| Call Duck | 28 days | Mallard-derived breed; standard 28-day timing |
| Muscovy | 35 days | Distinct species; notably longer incubation |
Temperature Guide
- Forced-air incubators: 99.5°F (37.5°C) — same as chicken eggs.
- Still-air incubators: 101.5°F (38.6°C), measured at the top of the eggs.
- Temperature requirements don't differ meaningfully from chicken eggs — it's humidity where duck incubation really diverges.
Humidity Requirements — Higher Than Chickens
Duck eggs need meaningfully higher humidity than chicken eggs throughout incubation, reflecting the naturally damp, marshy nests wild and domestic ducks build:
- Days 1–25 (days 1–32 for Muscovy): 55–60% relative humidity — compared to just 45–55% for chicken eggs.
- Lockdown (final 3 days): 75% relative humidity.
Many duck keepers also mist the eggs lightly with lukewarm water once daily starting around day 7, and some briefly cool the eggs for 10–15 minutes during this misting — mimicking a hen duck leaving the nest. This isn't strictly required with a well-calibrated humidity setup, but many experienced duck breeders report better hatch rates with it.
Candling Schedule
| Day | What to Look For |
|---|---|
| Day 7 | First check for a visible blood vessel network — duck shells are thicker, so use a bright light |
| Day 14 | Confirm continued growth; air cell should be visibly larger than at day 7 |
| Day 25 (Day 32 for Muscovy) | Final check before lockdown |
How Duck Eggs Compare to Chicken and Goose Eggs
At 28 days, standard duck eggs take a week longer to hatch than chicken eggs but finish sooner than goose eggs.
| Species | Avg. Incubation (Days) | Vs. Duck |
|---|---|---|
| Goose | 30 days | 2 days longer |
| Duck (standard) | 28 days | — |
| Turkey | 28 days | Same |
| Chicken | 21 days | 7 days shorter |
| Quail | 17 days | 11 days shorter |
Also managing chickens? See our chicken egg incubation calculator for chicken-specific timing and guidance.
How We Calculate Duck Egg Incubation
The duck egg incubation calculator uses the formula: Hatch Date = Set Date + Average Incubation Days. The 28-day average for standard breeds and the 35-day Muscovy average are derived from published poultry science research and validated by university extension waterfowl programs.
Frequently Asked Questions
How long does it take for a duck egg to hatch?
Most duck eggs take 28 days to hatch — Pekin, Khaki Campbell, Rouen, and Call Ducks all incubate in about 28 days. Muscovy ducks are the major exception, taking notably longer at approximately 35 days, since Muscovy are a genetically distinct species (Cairina moschata) rather than a breed of the common domestic duck (Anas platyrhynchos domesticus).
How do I calculate when my duck eggs will hatch?
Add 28 days to the date you set standard duck eggs in the incubator (35 days for Muscovy). For example, Pekin eggs set on June 1st should hatch around June 29th. Use the calculator above for an exact date plus a full candling and lockdown schedule, with a breed selector to account for the Muscovy difference.
Why do Muscovy ducks take longer to hatch than other ducks?
Muscovy ducks (Cairina moschata) are only distantly related to the mallard-derived breeds (Pekin, Khaki Campbell, Rouen) that make up most domestic ducks. Their longer 35-day incubation period reflects this genetic distance rather than any difference in egg size or care — mixing up the two incubation periods is one of the most common mistakes new duck keepers make when incubating a mixed clutch.
What temperature do duck eggs need to incubate?
Duck eggs incubate at the same temperature as chicken eggs: 99.5°F (37.5°C) in a forced-air incubator, or 101.5°F (38.6°C) in a still-air incubator. What differs from chicken eggs is humidity, which needs to run higher throughout duck incubation to match the naturally moist, marshy nesting conditions ducks evolved with.
What humidity do duck eggs need during incubation?
Keep humidity at 55–60% for days 1–25 of incubation — noticeably higher than the 45–55% used for chicken eggs. Raise it further to 75% for lockdown, days 25–28 (or 32–35 for Muscovy). Many duck keepers also add a daily egg misting or brief cooling period, mimicking a hen duck briefly leaving the nest, which some breeders believe improves hatch rates, though the evidence is mixed.
When should I candle duck eggs?
Candle at day 7 to check for early development, and again around day 14 to confirm continued growth and check air cell size. Duck eggshells are often thicker and more opaque than chicken eggshells, so development can be harder to see clearly — a bright candling light is especially helpful. Avoid candling after lockdown begins.
How does duck egg incubation compare to chicken and goose eggs?
Duck eggs (28 days) take a week longer to hatch than chicken eggs (21 days), but finish faster than goose eggs (30 days). Muscovy ducks, at 35 days, actually take longer than geese. Across all of these species, larger-bodied birds and species more distantly related to the standard barnyard chicken tend to have longer incubation periods.
Sources & References
- Penn State Extension — Waterfowl egg incubation
- USDA — Poultry and waterfowl production data
- Merck Veterinary Manual — Waterfowl reproduction and incubation
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Kanika
Researched and reviewed by Kanika, founder of GestationCalc. All gestation data is verified against primary veterinary and agricultural sources before publication.
Last reviewed: September 1, 2026