What is the average grape weight in ounces?

The average, or medium, grape weighs about 0.18 ounces. A small one is closer to 0.11 ounces and a large one closer to 0.28 ounces, so grapes vary a fair amount by size. Set the size selector above to match what you have, then read the exact ounces figure for any count.

Convert Grapes from Whole Grapes to Ounces

Use the tool below to convert grapes from Whole Grapes to Ounces.

A large grape weighs more than twice a small one, so a cup of grapes can be around thirty small grapes or far fewer large ones. Pick the right size below to keep fruit salads, roasting trays, and snack boxes on target.

How many ounces is one medium grape?

One medium grape is about 0.18 ounces. A small grape is about 0.11 ounces and a large one about 0.28 ounces, so set the size selector to match what you have. Use the converter above for any amount, or the chart below for the most common quantities.

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Grapes converter tool

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

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Grape sizeSize applies to whole grapes (small / medium / large).

Result

0.18 oz

Grapes Calculators & Kitchen Tools

Working with grapes? These tools handle the jobs a converter cannot.

Juice Yield Calculator Estimate how much juice you get from fresh produce.
Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.

Common Grapes conversions

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

grapes	Ounces
1 grape	0.18 oz
2 grapes	0.35 oz
3 grapes	0.53 oz
4 grapes	0.71 oz
5 grapes	0.88 oz
6 grapes	1.06 oz

For the reverse conversion, see how many grapes are in an ounce.

Grapes conversion chart

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

grapes	oz	cups	cups (US)	g	lb	kg
1 grape	0.18 oz	0.03 cups	0.03 cups (US)	5 g	0.01 lb	0.01 kg
2 grapes	0.35 oz	0.06 cups	0.07 cups (US)	10 g	0.02 lb	0.01 kg
3 grapes	0.53 oz	0.1 cups	0.1 cups (US)	15 g	0.03 lb	0.02 kg
4 grapes	0.71 oz	0.13 cups	0.13 cups (US)	20 g	0.04 lb	0.02 kg
5 grapes	0.88 oz	0.16 cups	0.17 cups (US)	25 g	0.06 lb	0.03 kg

Grapes 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 grapes varieties compare.

Variety	Best for
Red Seedless	Snacking and salads: sweet, crisp, and easy to eat whole.
Thompson (Green) Seedless	Fresh eating and roasting: mild and sweet, the green supermarket standard.
Black	Fresh eating and roasting: deeper, richer flavour with dark skin.
Concord	Juice, jelly, and jam: bold and jammy with seeds and a slip skin.

Which should I pick?

For snacking and fruit salads, Red Seedless and Thompson (Green) Seedless are the sweet, reliable supermarket defaults. No seedless? Black grapes are richer and work as well fresh or roasted. Reach for Concord when you want a bold, jammy grape for juice and jelly, though it carries seeds and a slip skin.

Frequently Asked Questions

How many ounces is one medium grape?: One medium grape is about 0.18 ounces, a small one about 0.11 ounces and a large one about 0.28 ounces. Grapes vary in size, which is the main reason a recipe that counts grapes can still vary in weight. Set the size selector to match what you have, then read the exact figure for any count above. Open the grapes converter
What is the average grape weight in ounces?: The average, or medium, grape weighs about 0.18 ounces. A small one is closer to 0.11 ounces and a large one closer to 0.28 ounces, so grapes vary a fair amount by size. Set the size selector above to match what you have, then read the exact ounces figure for any count.
Which grapes variety should I use?: For snacking and fruit salads, Red Seedless and Thompson (Green) Seedless are the sweet, reliable supermarket defaults. No seedless? Black grapes are richer and work as well fresh or roasted. Reach for Concord when you want a bold, jammy grape for juice and jelly, though it carries seeds and a slip skin.

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