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🥔🎄 How Much Potato Per Person for Christmas Dinner?
🎅 Introduction: Avoid Running Out of Roasties!
Nothing disappears faster on a Christmas plate than crispy roast potatoes — so getting the quantity right is essential.
You want:
✔ enough for everyone
✔ extra for second helpings
✔ maybe even leftovers for Boxing Day
Below is the foolproof guide to exactly how many potatoes you need per person for Christmas Dinner.
⭐ Check Out Our Recommended Products
• Stainless-Steel Peeler & Prep Set
Perfect for prepping big Christmas batches.
Click here to see them
• Large Roasting Tray
Ideal for cooking potatoes in a single crispy layer.
Click here to see them
• Digital Kitchen Scales
Helpful for weighing portions accurately.
Click here to see them
🎄 How Much Potato Per Person for Christmas Dinner?
🥇 Standard Portion (Most People)
👉 250g–300g of raw potatoes per person
(About 3–4 medium roasties)
This is the ideal amount for the average Christmas plate.
🥈 Generous Portion (Big Eaters / Potato Lovers)
👉 350g–400g per person
(About 4–6 large roasties)
Perfect if your family piles on the potatoes.
🥉 Kids Portion
👉 120g–150g per child
(About 1–2 roasties)
Kids usually eat less — unless they really love roasties!
🧮 Quick Conversion Guide
| Group Size | Standard Potatoes Needed | Generous Potatoes Needed |
|---|---|---|
| 2 people | 500–600g | 700–800g |
| 4 people | 1–1.2kg | 1.4–1.6kg |
| 6 people | 1.5–1.8kg | 2.1–2.4kg |
| 8 people | 2–2.4kg | 2.8–3.2kg |
| 10 people | 2.5–3kg | 3.5–4kg |
❄️ Want Leftovers for Boxing Day?
If you want extra roast potatoes for cold snacks or reheating:
👉 Add an extra 100–150g per person
This gives you a perfect leftover stash.
🥔 What About Mashed Potatoes?
If you’re making mash as well as roasties:
Mash Quantity:
👉 180–220g raw potato per person
If serving both mash AND roasties, reduce each portion slightly:
✔ 200g roast potatoes
✔ 150g mash
Perfect balance.
🍽 Other Christmas Potato Dishes & Portions
Dauphinoise / Gratin
👉 200–250g per person
Hasselback Potatoes
👉 1 medium-large potato per person
Baby Roast Potatoes
👉 5–7 per person
💡 Extra Tips for Choosing Quantities
✔ Always buy a little extra
Potatoes are cheap — and leftovers are loved.
✔ Floury potatoes are heavier
Maris Piper, Rooster, and King Edward give best roasties.
✔ Bigger roasties = fewer needed
Large chunks fill plates faster.
✔ Christmas plates are always fuller
People always eat more than usual on Christmas Day.
❌ Common Mistakes
❌ Underestimating
Roast potatoes go FAST — always add extra.
❌ Forgetting sides
If you have lots of veg, reduce slightly.
❌ Small trays
Overcrowded trays cause soggy potatoes — get the quantity right for your oven space.
🌟 FAQs
How many roast potatoes do I need for 6 people?
Around 1.5–1.8kg of raw potatoes.
How many roasties per person?
3–4 medium potatoes per person on average.
How much potato for mash and roasties together?
About 350g total per person split between both.
Is 1kg of potatoes enough for 4 people?
Yes — that’s a good standard portion.
How many potatoes should I buy for 10 people?
2.5–3kg for standard servings, up to 4kg for generous.