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Fruit & Vegetables

Convert tablespoons of mashed potato to grams

One tablespoon of mashed potato weighs about 13.1 g, and half a tablespoon comes to roughly 6.56 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.

1 tbsp of mashed potato =

13.1 g

oz
0.463
kg
0.013
lb
0.029

Mashed Potato: 210 g per US cup · USDA FoodData Central. Plain mashed potato with no added butter or milk. Both additions raise the weight per cup.

Full mashed potato chart →

Mashed Potato at a glance

Every number on this page comes from a single figure: 210 grams per US cup (USDA FoodData Central).

1 cup
210 g
1 tablespoon
13.1 g
1 teaspoon
4.38 g
1 cup in ounces
7.41 oz
100 g in cups
0.476 cups
Density
0.89 g/ml

tablespoons to grams chart for mashed potato

Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.

Mashed Potato — measured by volume
Tablespoons (US)GramsOunces (weight)Pounds
1 tbsp13.1 g0.463 oz0.029 lb
2 tbsp26.3 g0.926 oz0.058 lb
3 tbsp39.4 g1.39 oz0.087 lb
4 tbsp52.5 g1.85 oz0.116 lb
5 tbsp65.6 g2.31 oz0.145 lb
6 tbsp78.8 g2.78 oz0.174 lb
8 tbsp105 g3.7 oz0.231 lb
10 tbsp131 g4.63 oz0.289 lb
12 tbsp158 g5.56 oz0.347 lb
16 tbsp210 g7.41 oz0.463 lb

How this conversion is calculated

Volume-to-weight conversions are only as good as the density behind them. We treat mashed potato as 210 g per US customary cup, which works out to 0.888 g/ml. From there:

  1. Your tablespoons figure is converted into millilitres or grams using standard unit sizes (tbsp = 14.8 ml).
  2. The density above bridges volume and weight in whichever direction you need.
  3. The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 1/2 cups.

Measuring mashed potato accurately

Plain mashed potato with no added butter or milk. Both additions raise the weight per cup.

If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.

When cups are fine

  • Liquids measured in a proper jug, where volume is the honest unit anyway.
  • Forgiving savoury cooking: soups, stews, stir-fries, marinades.
  • Small amounts of leaveners and spices, as long as you use level spoons.

Frequently asked questions

How many grams are in 1 tablespoon of mashed potato?

1 tablespoon of mashed potato is 13.1 g. This is based on a density of 210 g per US cup.

How many grams are in 2 tablespoons of mashed potato?

2 tablespoons of mashed potato is 26.3 g, and 6.56 g for half a tablespoon.

How much is 100 g of mashed potato in cups?

100 g of mashed potato is about 1/2 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.

Why do other sites give a different number for mashed potato?

Plain mashed potato with no added butter or milk. Both additions raise the weight per cup.

Do UK and Australian cups give the same result?

No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.

Same conversion, other fruit & vegetables