Convert Watermelon from Whole Watermelons to Kilograms

Watermelon converter

Use the tool below to convert watermelon from Whole Watermelons to Kilograms.

Watermelons range hugely: a small one is around 2000 g while a large one tops 9000 g, and the rind is heavy, so the flesh yield is hard to eyeball. Pick the right size below to keep agua fresca, salads, and fruit platters on target.

How many kg is one medium watermelon?

One medium watermelon is about 4.5 kg. A small watermelon is about 2 kg and a large one about 9 kg, 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.

Want to know how much juice you can get from watermelons? Try our juice calculator →

Building a summer fruit bowl? The pineapple converter handles whole-fruit weights and chunked cups across small, medium, and large sizes. See our Pineapple converter.

After a tropical fruit instead? The mango converter handles whole-fruit counts and cubed cups across small, medium, and large sizes. See our Mango converter.

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

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Watermelon sizeSize applies to whole watermelons (small / medium / large).

Result

4.5 kg

Common Watermelon conversions

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

watermelons	Kilograms
1 watermelon	4.5 kg
2 watermelons	9 kg
3 watermelons	13.5 kg
4 watermelons	18 kg
5 watermelons	22.5 kg
6 watermelons	27 kg

Watermelon conversion chart

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

watermelons	kg	cups	cups (US)	g	oz	lb
1 watermelon	4.5 kg	28.48 cups	29.61 cups (US)	4500 g	158.73 oz	9.92 lb
2 watermelons	9 kg	56.96 cups	59.21 cups (US)	9000 g	317.47 oz	19.84 lb
3 watermelons	13.5 kg	85.44 cups	88.82 cups (US)	13500 g	476.2 oz	29.76 lb
4 watermelons	18 kg	113.92 cups	118.42 cups (US)	18000 g	634.93 oz	39.68 lb
5 watermelons	22.5 kg	142.41 cups	148.03 cups (US)	22500 g	793.66 oz	49.6 lb

Watermelon 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 watermelon varieties compare.

Variety	Best for
Crimson Sweet (Seeded)	Slicing and eating: the classic large, sweet red-flesh melon with seeds.
Seedless	Everyday eating and salads: sweet and crisp with no mature seeds, the supermarket default.
Sugar Baby	Small kitchens: a compact icebox melon with deep red, sweet flesh.
Yellow-flesh	Fruit salads and novelty: honeyed flavour with golden flesh.

Which should I pick?

For everyday eating and salads, a Seedless watermelon is the convenient supermarket default: sweet, crisp, and no seeds to pick out. No Seedless? Crimson Sweet (Seeded) is the classic large, sweet red-flesh melon. Reach for Sugar Baby when you want a small icebox melon that fits the fridge, or a Yellow-flesh variety for a honeyed twist in fruit salads.

Frequently Asked Questions

How many kg is one medium watermelon?: One medium watermelon is about 4.5 kg, a small one about 2 kg and a large one about 9 kg. Watermelons vary in size, which is the main reason a recipe that counts watermelons 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 watermelon converter
Which watermelon variety should I use?: For everyday eating and salads, a Seedless watermelon is the convenient supermarket default: sweet, crisp, and no seeds to pick out. No Seedless? Crimson Sweet (Seeded) is the classic large, sweet red-flesh melon. Reach for Sugar Baby when you want a small icebox melon that fits the fridge, or a Yellow-flesh variety for a honeyed twist in fruit salads.

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