How Much Does a Sweet Potato Weigh? (By Size)

Sweet potatoes are nutritious and versatile vegetables that you can use in various dishes, including sweet potato pie. So, how much does one sweet potato weigh?  (Source: Sweet Potato Pie: Taste of Home) A sweet …

sweet potatoes weighed in the market

Sweet potatoes are nutritious and versatile vegetables that you can use in various dishes, including sweet potato pie. So, how much does one sweet potato weigh? 

(Source: Sweet Potato Pie: Taste of Home)

A sweet potato weighs around 4.6oz (130g) if it’s medium-sized. Small sweet potatoes weigh about 60g (2.1oz), while large ones weigh about 180g (6.3oz). Raw sweet potatoes weigh more than roasted ones as they lose water during cooking. Boiled sweet potatoes weigh more as they absorb water 

Read on to find out more about measuring the weight of sweet potatoes. 

purple sweet potato in the market

The Average Weight of Sweet Potatoes by Size

Recipes and eating plans often call for ingredients according to their weight. If you’re trying to follow a healthy eating plan or you want to incorporate sweet potato into a recipe, it can be challenging to determine its weight if you can’t weigh it in the store. In such cases, it’s best to figure out a sweet potato’s weight based on its size. 

Below is a helpful guide for guessing a sweet potato’s weight: 

  • Small sweet potato. A small sweet potato is roughly the size of a child’s fist and can weigh 60g (2.1oz).
  • Medium sweet potato. Medium sweet potatoes are similar in size to an average-sized avocado and weigh around 130g (4.6oz).
  • Large sweet potato. A large sweet potato can be about the same size as a dollar bill and weigh about 180g (6.3oz).

(Source: Avocado Weights and Calories: Weigh School)

Chart of Sweet Potato Weight

You can buy loose sweet potatoes at most supermarkets and farmers’ markets. If you enjoy using them often, it’s useful to know the average weight and size of small, medium, and large sweet potatoes. 

Here is a handy chart explaining a sweet potato’s weight and size: 

DescriptionAverage Weight (g)Average Diameter (inches)Average Length (inches)Similar Size To 
Small Sweet Potato60 (2.1oz)1.5 (3.8cm)4 (10cm)Child’s fist
Medium Sweet Potato130 (4.6oz)2 (5cm)5 (12.7cm)Avocado
Large Sweet Potato180 (6.3oz)2.5 (6.3cm)6 (15.2cm)Dollar note

The Weight of Cooked vs. Raw Sweet Potato

I’ve explained how much small, medium, and large sweet potatoes weigh, but did you know that raw and cooked sweet potatoes don’t weigh the same? 

Baking, roasting, microwaving, or grilling sweet potatoes causes them to lose a lot of water, causing them to weigh less when cooking is complete. 

steamed yellow and purple sweet potatoes

Water-based cooking methods, like steaming or boiling, make sweet potatoes absorb more water, and they can weigh more than raw sweet potatoes when they’re cooked. 

(Source: I Forgot It’s Wednesday: Do Sweet Potatoes Change Weight Cooked?)

How Much Does a Cup of Sweet Potato Weigh?

One cup of sweet potato can have a different weight, depending on whether it’s raw, roasted, grilled, baked, or mashed. For example, mashed sweet potatoes after boiling weigh around 240 g (8.4 oz), whereas one cup of roasted sweet potatoes weighs about 100 g (3.8 oz) 

(Source: Weight of Thing: Sweet Potatoes)

Since it’s challenging to convert volumetric measurements into weight, here is a useful table illustrating the weight difference between one cup of raw, mashed, and roasted sweet potatoes:

Cooking MethodWeight Per Cup 
Mashed Sweet Potatoes (after boiling)240g (8.4oz)
Roasted, Grilled, or Baked Sweet Potatoes100g (3.8oz)
Raw Sweet Potatoes130g (4.5oz)
sweet potatoes weighed in the market

How Much Does a Bushel or Bin of Sweet Potatoes Weigh?

Do you regularly buy sweet potatoes in large quantities? If so, you might wonder how much a bushel or a bin of sweet potatoes weighs. 

(Source: Bushel Definition and Meaning: Collins Dictionary)

A bushel or a bin of sweet potatoes weighs 50 lbs (22.6kg), while a peck of sweet potatoes weighs between 12 and 13 lbs (5.4 and 5.8kg). This means that there will be roughly 172 sweet potatoes per bushel and 43 in every peck. 

Conclusion

Figuring out the weight of a sweet potato can be challenging, but it’s useful if you remember that a small sweet potato weighs about 60g (2.1oz), a medium sweet potato can weigh 130g (4.6oz),  and a large one weighs around 180g (6.3oz).