How to measure mashed potatoes
The USDA entry is “Potatoes, mashed, home-prepared, whole milk added, 1 cup = 210 g”, so the figure includes the milk mixed in. King Arthur Baking’s chart gives 213 grams per cup for mashed potatoes, so the two sources agree closely. Spoon it in, level it and scrape it out, or weigh it straight into the bowl. Half a cup is 105 grams and a quarter cup about 53 grams. Mashed sweet potato is heavier at 255 grams per cup.
Sources: 210 grams per US cup is the cup weight in USDA FoodData Central (open FDC entry 170493), entry “Potatoes, mashed, home-prepared, whole milk added, 1 cup = 210 g”. Cup and ounce sizes: NIST SP 811.
Mashed potatoes: cups to grams chart
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 26 g | 0.93 oz |
| 1/4 cup | 53 g | 1.85 oz |
| 1/3 cup | 70 g | 2.47 oz |
| 1/2 cup | 105 g | 3.7 oz |
| 2/3 cup | 140 g | 4.94 oz |
| 3/4 cup | 158 g | 5.56 oz |
| 1 cup | 210 g | 7.41 oz |
| 1 1/4 cups | 263 g | 9.26 oz |
| 1 1/2 cups | 315 g | 11.1 oz |
| 1 3/4 cups | 368 g | 13 oz |
| 2 cups | 420 g | 14.8 oz |
| 2 1/2 cups | 525 g | 18.5 oz |
| 3 cups | 630 g | 22.2 oz |
| 4 cups | 840 g | 29.6 oz |
Tablespoons and teaspoons of mashed potatoes
For a tablespoon of mashed potatoes count 13 g, a sixteenth of the cup; a teaspoon is 4.4 g.
| Spoons | Grams |
|---|---|
| 1/4 tsp | 1.1 g |
| 1/2 tsp | 2.2 g |
| 1 tsp | 4.4 g |
| 1 tbsp | 13 g |
| 2 tbsp | 26 g |
| 3 tbsp | 39 g |
| 4 tbsp | 53 g |
Grams of mashed potatoes to cups
To turn grams of mashed potatoes into cups, divide by 210. That is about 0.89 grams per milliliter: 27 g below the 237 g of a cup of water.
| Grams | Cups | In the kitchen |
|---|---|---|
| 25 g | 0.12 cup | about 1.9 tbsp |
| 50 g | 0.24 cup | just under 1/4 cup |
| 100 g | 0.48 cup | just under 1/2 cup |
| 150 g | 0.71 cup | just under 3/4 cup |
| 200 g | 0.95 cup | just under 1 cup |
| 250 g | 1.19 cups | just under 1 1/4 cups |
| 300 g | 1.43 cups | just over 1 3/8 cups |
| 400 g | 1.9 cups | just over 1 7/8 cups |
| 500 g | 2.38 cups | about 2 3/8 cups |
| 1,000 g | 4.76 cups | just over 4 3/4 cups |
Ounces and pounds of mashed potatoes to cups
Mashed potatoes by the pound: 2.16 cups, just over 2 1/8 cups per pound, 0.54 cups per 4 ounces.
| Weight (not fluid oz) | Grams | Cups | In the kitchen |
|---|---|---|---|
| 4 oz | 113 g | 0.54 cups | just over 1/2 cup |
| 8 oz | 227 g | 1.08 cups | just under 1 1/8 cups |
| 12 oz | 340 g | 1.62 cups | about 1 5/8 cups |
| 1 lb | 454 g | 2.16 cups | just over 2 1/8 cups |
| 2 lb | 907 g | 4.32 cups | just under 4 1/3 cups |
| 5 lb | 2,268 g | 10.8 cups | just over 10 3/4 cups |
Other vegetables closest in weight
Its closest counterpart here is canned mashed sweet potato. Canned mashed sweet potato is 255 g per cup against 210 g for mashed potatoes, a 18 percent gap. To match one cup of canned mashed sweet potato by weight, use 1.21 cups of mashed potatoes, just under 1 1/4 cups.
Of the 10 vegetables on this site, mashed potatoes are the 2nd heaviest per cup. Across all 193 ingredients, 54 weigh more per cup and 138 weigh less.
- Mashed sweet potato (canned): 255 grams per cup, 45 g more
- Chopped onion: 160 grams per cup, 50 g less
- Chopped red bell pepper: 149 grams per cup, 61 g less
- Corn kernels (frozen): 136 grams per cup, 74 g less
- Green peas (frozen): 134 grams per cup, 76 g less
- Grated carrots: 110 grams per cup, 100 g less
For every ingredient in one place, open the cups to grams converter. The recipe scaler resizes a recipe before you weigh the vegetables, and the grams to ounces converter helps if your scale shows ounces.
Frequently asked questions
How many grams is 1/2 cup of mashed potatoes?
105 g, half of the 210 g cup. A quarter cup of mashed potatoes is 53 g.
How many cups is 100 grams of mashed potatoes?
About 0.48 cups, just under 1/2 cup. Divide the grams by 210 to get cups.
How many grams are in a tablespoon of mashed potatoes?
13 g per tablespoon, 4.4 g per teaspoon, both level.
How many cups is 250 grams of mashed potatoes?
About 1.19 cups, which is 1 1/4 cups less a tablespoon. Divide the grams by 210. For 100 grams that is 0.48 cups, just under half a cup.
Are mashed potatoes 210 or 213 grams per cup?
USDA FoodData Central gives 210 grams for home-prepared mashed potatoes with whole milk, and King Arthur Baking’s chart gives 213 grams. The 3 gram difference is about 1 percent.
How many cups of mashed potatoes are in a pound?
Roughly 2.2. At 210 g per cup, a 453.6 g pound of mashed potatoes fills 2.16 cups. For a kilogram of mashed potatoes, count 4.8 cups.
Does a cup of mashed potatoes weigh 8 ounces?
Not by weight. Mashed potatoes come to 7.41 ounces per cup (210 g), less than the 8 fluid ounces of volume the cup holds. A full 8 ounces of mashed potatoes on the scale takes 1.08 cups.