Clarks Size Calculator

Duck Size Calculator

Enter how many people and whether you are cooking whole duck or duck breasts. The calculator gives the duck to buy, how many birds, the roasting time for each and how much fat you can save.

  • Duck to buy
  • Number of ducks
  • Roasting time
Your meal

From 1 to 50

One duck breast of about 225 g (8 oz) serves one person.

Duck has a lot of fat and bone, so allow more per person than chicken. Allow about 1.5 lb (680 g) of whole duck per person. Six people need about 9 lb, so two ducks of about 4.5 lb. Each roasts in about 1 hour 54 minutes at 180°C (350°F), finishing hot to crisp the skin.

Duck size chart

Whole duck. Search for people.

Duck by people
PeopleDuck (lb)Duck (kg)Ducks
231.41
34.521
462.72
694.12
8125.43
10156.83
12188.24
162410.95

1.5 lb each.

People and ducks

Whole duck. Slide the people.

The roast ducks are drawn for your table.

How to roast a duck

People to oven. Step through it.

People

Count them.

Pour off the fat during roasting and save it for the crispiest roast potatoes.

Whole duck, breasts or legs

Duck cuts. Compare them.

Roast.

Per person1.5 lb
CookAbout 2 hours
Best forSunday roast

Duck legs suit slow cooking and confit.

Before you cook

Duck checks. Tick each item.

Tick each item as you go.

Dry the skin uncovered in the fridge overnight for the crispiest result.

What you get

Duck sizing. Each tile explains one result.

Weight

To buy.

Ducks

How many.

Time

Roast.

Done

Temperature.

Fat

To save.

A 5 lb duck gives about 250 ml of fat when roasted.

Frequently Asked Questions

How much duck per person?

About one and a half pounds of whole duck, or one breast.

How many people does one duck feed?

Three to four people.

How long do I roast a duck?

About twenty-two minutes per pound at one hundred and eighty degrees Celsius, then fifteen minutes hotter.

What temperature is duck done?

Seventy-four degrees Celsius in the thigh for whole duck.

Should duck breast be pink?

Yes, cooked to about fifty-seven degrees Celsius.

How do I get crispy duck skin?

Prick the skin, roast on a rack and finish at a high heat.

What can I do with duck fat?

Roast potatoes in it. It keeps for months in the fridge.

Crisp skin for everyone

Buy enough duck for the table and roast it slowly then hot, and every plate gets crisp skin and tender meat.

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