Quick Answer: How many lbs of potatoes per person for mashed potatoes? Plan about ½ lb (225g) of raw potatoes per person, which makes roughly 1 cup of mashed potatoes each. Drop to ⅓ lb when there are many other sides, or go up to ¾ lb if you want leftovers. Use the calculator below for your exact guest count.
Mashed Potatoes Calculator
Estimates assume about 2 cups of mashed potatoes per pound of raw potatoes. Potato sizes vary, so buying by weight is more reliable than by count.
Potatoes Per Person for Mashed Potatoes: Guest Chart
| Guests | Lbs (½ lb each) | Kg | Russets | Yukon Golds |
|---|---|---|---|---|
| 2 | 1 lb | 0.45 kg | 2 | 3 |
| 4 | 2 lbs | 0.9 kg | 4 | 6 |
| 6 | 3 lbs | 1.4 kg | 6 | 9 |
| 8 | 4 lbs | 1.8 kg | 8 | 12 |
| 10 | 5 lbs | 2.3 kg | 10 | 15 |
| 12 | 6 lbs | 2.7 kg | 12 | 18 |
| 15 | 7.5 lbs | 3.4 kg | 15 | 23 |
| 20 | 10 lbs | 4.5 kg | 20 | 30 |
| 25 | 12.5 lbs | 5.7 kg | 25 | 38 |
| 30 | 15 lbs | 6.8 kg | 30 | 45 |
A common 5 lb bag of potatoes covers about 10 people at the standard portion. Keep reading for how to adjust the amount for your menu, how russets and Yukon Golds compare, and what a serving of mashed potatoes adds nutritionally.
Adjusting the Amount for Your Menu
The ½ lb rule works when mashed potatoes are one of two or three sides. On a big holiday table with stuffing, rolls, and several vegetables, people take smaller scoops, so ⅓ lb per person is usually enough. If mashed potatoes are the main starch or your group tends to go back for seconds, plan ¾ lb per person. That also covers leftovers, which reheat well. A rich, meaty main also pushes people toward larger scoops, so if you're serving ham, our guide to how much ham per person can help you balance both amounts.
Russet vs Yukon Gold: How Many Potatoes Per Person
A medium russet weighs about 8 oz, so one russet per person covers the standard ½ lb portion. Yukon Golds are smaller, at around 5 to 6 oz each, so you need about one and a half per person. Russets are starchy and mash up light and fluffy. Yukon Golds have a naturally buttery, creamy texture and hold up better if you make the dish ahead. Many cooks mix the two for a balance of fluffiness and richness.
How Much Mashed Potatoes 1 lb of Potatoes Makes
Peeling removes roughly 10 to 15% of a potato's weight, but the milk and butter you add bring the volume back up. As a result, 1 lb of raw potatoes typically makes about 2 cups of mashed potatoes, or two generous servings. Since mashed potatoes are naturally free of wheat when made with plain milk and butter, they also fit easily into a gluten-free meal plan, which is useful when you're feeding a mixed group.
Mashed Potatoes Nutrition Per Serving
One cup of homemade mashed potatoes made with whole milk and butter has roughly 210 to 240 calories, depending on how much butter goes in. Gravy adds more on top, typically 25 to 60 calories per ¼ cup, and our guide to how much gravy per person covers how much to make. If you're watching portions within a set target like the 1500 calorie meal plan, a ½ cup scoop alongside a lighter vegetable side keeps the plate balanced.
Frequently Asked Questions
About ½ lb of raw potatoes per person. Use ⅓ lb when there are many sides and ¾ lb for hearty eaters or leftovers.
About 5 lbs at the standard ½ lb per person, which is one common 5 lb bag.
About 1 medium russet or 1½ Yukon Gold potatoes per person, based on ½ lb each.
About 2 cups of mashed potatoes, or roughly two servings.
Russets make the fluffiest mash, while Yukon Golds are creamier and hold up better when made ahead. Many cooks mix the two.
Final Answer: How Many Lbs of Potatoes Per Person for Mashed Potatoes
Plan ½ lb of raw potatoes per person for mashed potatoes, about one medium russet or one and a half Yukon Golds each. That makes roughly 1 cup of mashed potatoes per guest, so 10 people need about 5 lbs. Scale down to ⅓ lb on a crowded menu and up to ¾ lb if you want leftovers, and buy by weight rather than by count for the most accurate result.