How do I convert ounces to grams for any ingredient?

Converting ounces to grams is pure weight maths that applies to any food, not just grapefruit, so 1 ounce is always 28.35 grams. For other amounts, or to add kilograms and stone, the weight converter at the link below handles grams, ounces and pounds in both directions.

Convert Grapefruit from Ounces to Grams

Use the tool below to convert grapefruit from Ounces to Grams.

A small grapefruit is 200 g and a large one 332 g, so 'two grapefruits' can swing from 400 g to over 650 g of fruit. Pick the right size below to keep salads, marmalade, and breakfast bowls on target.

How many grams is an ounce of grapefruits?

An ounce of grapefruits is 28.35 grams. This is a pure weight conversion, the same for any food, so the ratio never changes with size or density. Use the converter above for any amount, or the weight converter linked below to add kilograms and stone.

Related Grapefruit Ingredients

After a sweeter citrus instead? The orange converter handles whole-fruit counts and chopped cups across small, medium, and large sizes. See what an ounce of oranges is in grams.

Out of grapefruit? See grapefruit substitutes →

Grapefruit converter tool

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

Convert from

Convert to

Grapefruit sizeSize applies to whole grapefruits (small / medium / large).

Result

28.35 g

Grapefruit Calculators & Kitchen Tools

Working with grapefruit? 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 Grapefruit conversions

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

Ounces	Grams
1 oz	28.35 g
2 oz	56.7 g
4 oz	113.4 g
8 oz	226.8 g
16 oz	453.59 g
32 oz	907.18 g

Grapefruit conversion chart

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

oz	g	grapefruits	cups	cups (US)	lb	kg
4 oz	113.4 g	0.46 grapefruits	0.47 cups	0.49 cups (US)	0.25 lb	0.11 kg
8 oz	226.8 g	0.92 grapefruits	0.94 cups	0.99 cups (US)	0.5 lb	0.23 kg
16 oz	453.59 g	1.84 grapefruits	1.89 cups	1.97 cups (US)	1 lb	0.45 kg
24 oz	680.39 g	2.77 grapefruits	2.83 cups	2.96 cups (US)	1.5 lb	0.68 kg
32 oz	907.18 g	3.69 grapefruits	3.78 cups	3.94 cups (US)	2 lb	0.91 kg

Grapefruit 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 grapefruit varieties compare.

Variety	Best for
Ruby Red	Juice and breakfast halves: sweet, low-acid, deep pink flesh.
Pink (Marsh)	Fresh eating and salads: mild, juicy, and seedless.
White (Marsh)	Marmalade and sharper dishes: the classic tart-bitter flavour with pale flesh.
Oroblanco	Salads and segments: sweet, nearly seedless pomelo cross with low bitterness.

Which should I pick?

For juice and breakfast halves, Ruby Red is the sweet, low-acid default with deep pink flesh. No Ruby Red? Pink (Marsh) is a touch milder and nearly as juicy. Reach for White (Marsh) when you want a sharper, more bitter classic note, or Oroblanco for a sweet, nearly seedless segment in salads.

Frequently Asked Questions

How many grams is an ounce of grapefruits?: An ounce of grapefruits is 28.35 grams. This is a straight weight conversion, so half (0.5 ounces) is 14.17 grams and double (2 ounces) is 56.7 grams. The ratio never changes with grapefruit size or density, so the same figure works for any quantity you measure. Open the grapefruit converter
How do I convert ounces to grams for any ingredient?: Converting ounces to grams is pure weight maths that applies to any food, not just grapefruit, so 1 ounce is always 28.35 grams. For other amounts, or to add kilograms and stone, the weight converter at the link below handles grams, ounces and pounds in both directions. Ounces to grams converter
Which grapefruit variety should I use?: For juice and breakfast halves, Ruby Red is the sweet, low-acid default with deep pink flesh. No Ruby Red? Pink (Marsh) is a touch milder and nearly as juicy. Reach for White (Marsh) when you want a sharper, more bitter classic note, or Oroblanco for a sweet, nearly seedless segment in salads.

Other produce

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