How many grams is a US cup of sweet potatoes?

A US cup of sweet potatoes is 133 grams. The conversion scales in a straight line, so 0.5 US cups of sweet potatoes is 66.5 grams and 2 US cups of sweet potatoes is 266 grams. Multiply or divide that figure to match whatever your recipe needs, or use the converter above for an exact reading at any amount.

How many US cups of sweet potatoes is 133 grams?

133 grams of sweet potatoes is 1 US cup. The conversion works the same in reverse, so you can switch between US cups and grams without changing the result. This helps when a recipe lists one unit but you would rather measure in the other. The converter above and the chart below cover both directions for any amount.

Convert Sweet Potato from US cups (chopped)

Sweet Potato converter

Use the tool below to convert sweet potato from US cups (chopped) to the measurement that you need.

A small sweet potato is around 40% of the weight of a large one, so 'three sweet potatoes' in a tray bake or pie can swing the yield. Pick the right size below to keep mash, fries, and casseroles on target.

How much is a US cup of sweet potatoes?

A US cup of sweet potatoes is 133 grams, about 0.67 medium sweet potatoes. 0.5 US cups of sweet potatoes is 66.5 grams and 2 US cups of sweet potatoes is 266 grams. Use the converter below for any amount.

Out of sweet potato? See sweet potato substitutes →

Using regular potato instead? The potato converter handles whole-item counts and cubed cups across small, medium, and large sizes. See potatoes in US cups.

Adding carrot to the roast? The carrot converter works out whole-item counts and chopped cups across small, medium, and large sizes. See carrots in US cups.

No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.

Scoop it right, get measuring cups

Enter an amount, pick your units, and set the size for counting whole sweet potatoes.

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Sweet potato sizeSize applies to whole sweet potatoes (small / medium / large).

Result

0.96 cups

Common Sweet Potato conversions

Quick reference for sweet potato at medium size. Switch the size in the converter above for small or large.

US cups (chopped)	sweet potatoes
0.25 cups (US)	0.17 sweet potatoes
0.5 cups (US)	0.33 sweet potatoes
0.75 cups (US)	0.5 sweet potatoes
1 cup (US)	0.67 sweet potatoes
1.5 cups (US)	1 sweet potato
2 cups (US)	1.33 sweet potatoes
3 cups (US)	2 sweet potatoes

Sweet Potato conversion chart

The chart below shows how whole sweet potatoes (medium size) convert to cups, grams and ounces.

cups (US)	cups	sweet potatoes	g	oz	lb	kg
0.25 cups (US)	0.24 cups	0.17 sweet potatoes	33.25 g	1.17 oz	0.07 lb	0.03 kg
0.5 cups (US)	0.48 cups	0.33 sweet potatoes	66.5 g	2.35 oz	0.15 lb	0.07 kg
1 cup (US)	0.96 cups	0.67 sweet potatoes	133 g	4.69 oz	0.29 lb	0.13 kg
1.5 cups (US)	1.44 cups	1 sweet potato	199.5 g	7.04 oz	0.44 lb	0.2 kg
2 cups (US)	1.91 cups	1.33 sweet potatoes	266 g	9.38 oz	0.59 lb	0.27 kg

Sweet Potato varieties and best uses

The conversions above are the same whatever variety you use; the difference is what each is good for. Here is how the common sweet potato varieties compare.

Variety	Best for
Beauregard	Everyday baking, mash, and roasting: deep orange flesh, sweet and reliably moist; the standard US supermarket sweet potato.
Garnet	Mash, pies, and casseroles: red-purple skin and deep orange flesh, very moist and sweet.
Jewel	Roasting and baking whole: copper skin and orange flesh, mild and sweet with a moist texture.
Japanese (Murasaki)	Roasted wedges and savoury sides: purple skin and pale flesh, drier and less sweet with a chestnut flavour.
Stokes Purple	Showpiece purées and colourful plates: purple skin and deep purple flesh, slightly drier and earthy.

Which should I pick?

For everyday baking, mashing, and roasting, Beauregard is the supermarket default: deep orange flesh, sweet and reliably moist. No Beauregard? Garnet or Jewel are interchangeable orange-flesh substitutes, equally sweet. For drier, savoury dishes and roasted wedges, Japanese (purple skin, pale flesh) holds its shape with a chestnut sweetness. Stokes purple-flesh sweet potatoes are the pick for colourful purées and showpiece plates.

Frequently Asked Questions

How much is a US cup of sweet potatoes?: A US cup of sweet potatoes is 133 grams, or about 0.67 medium sweet potatoes. The ratio is fixed, so 0.5 US cups of sweet potatoes is 66.5 grams and 2 US cups of sweet potatoes is 266 grams. Use the converter above for any amount, or the chart below for the most common quantities. Open the sweet potato converter
How many grams is a US cup of sweet potatoes?: A US cup of sweet potatoes is 133 grams. The conversion scales in a straight line, so 0.5 US cups of sweet potatoes is 66.5 grams and 2 US cups of sweet potatoes is 266 grams. Multiply or divide that figure to match whatever your recipe needs, or use the converter above for an exact reading at any amount.
How many US cups of sweet potatoes is 133 grams?: 133 grams of sweet potatoes is 1 US cup. The conversion works the same in reverse, so you can switch between US cups and grams without changing the result. This helps when a recipe lists one unit but you would rather measure in the other. The converter above and the chart below cover both directions for any amount.

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