Costa Strawberry, Watermelon, & Mint Refresher UK Price & Calories 2026
The quick decision with Costa’s Strawberry, Watermelon, & Mint Refresher is simple: the Medium costs £4.75 and has 132 kcal, while the Small costs £4.50 and has 95 kcal. So you’re paying 25p more for an extra 100 ml, but you’re also adding 37 kcal and 6 g sugar.
That makes this a good one to think about before you order. It’s clearly aimed at the cold, fruity, warm-day sort of moment, but the better size depends on whether you want the extra drink or just something quick and fresh.
Source: Official Costa Database
| Nutrient | Per 100g | Standard (391ml) |
|---|---|---|
| Energy (kcal) | 34 | 132 |
| Energy (kJ) | 142 | 554 |
| Carbs (g) | 7.9 | 31 |
| Sugars (g) | 5 | 20 |
| Fat (g) | 0.1 | 0.2 |
| Saturates (g) | 0.1 | 0.2 |
| Protein (g) | 0 | 0.7 |
| Salt (g) | 0 | 0.04 |
Customize Your Signature Drink
Tailor the size, milk, and flavors to your preference and check the nutritional information
expand_more
The numbers I’d check first
- Small costs £4.50 and has 95 kcal.
- Medium costs £4.75 and has 132 kcal.
- The Medium is the default size for the main nutrition view.
- Small is 291 ml; Medium is 391 ml.
- Medium gives you 100 ml more than Small for 25p extra.
- Medium has 20 g sugar, which is 6 g more than the Small.
Price by size in the UK
There are two listed sizes for the Strawberry, Watermelon, & Mint Refresher in the UK: Small and Medium.
- Small: £4.50
- Medium: £4.75
The price gap is small. The Medium is only 25p more than the Small, which is why it’s the one most people will pause over. If you’re already happy spending £4.50, the extra 25p gets you a bigger drink. But the Small still has a clear role: it keeps the calories and sugar lower.
Small or Medium: what I’d actually choose
I’d choose the Medium if I wanted this as a proper cold drink to carry around for a while. The extra 100 ml for 25p makes sense if you’re thirsty and specifically want the strawberry, watermelon and mint style rather than just a small sip.
I’d choose the Small if I wanted the lighter option. It’s 95 kcal instead of 132 kcal, and it has 14 g sugar rather than 20 g. That’s a useful drop if you’re only after something fresh alongside food, or if you don’t want a bigger sweet drink.
So the decision isn’t really about price alone. It’s about appetite for the drink. Medium looks better for value, Small looks better for keeping the numbers down.
Nutrition table and calorie reality
Strawberry, Watermelon, & Mint Refresher has 95 kcal in Small and 132 kcal in Medium. The Medium is the default configuration here, so the main figure to remember is 132 kcal.
The calorie rise from Small to Medium is 37 kcal. Sugar rises from 14 g to 20 g, carbs rise from 22 g to 31 g, and protein rises from 0.5 g to 0.7 g. Fat stays at 0.2 g in both sizes, saturates stay at 0.2 g, and salt increases from 0.03 g to 0.04 g.
For a cold refreshing drink, the fat and salt figures are low in both sizes, but the sugar is the number to look at. If you’re choosing mainly for a fresh fruit-style drink, Medium is fine if you want the volume. If you’re choosing mainly by nutrition, Small is the cleaner pick.
| Size | Portion (ml) | Energy (kcal) | Energy (kJ) | Sugar (g) | Fat (g) | Saturates (g) | Carbs (g) | Protein (g) | Salt (g) |
|---|---|---|---|---|---|---|---|---|---|
| Small | 291 | 95 | 400 | 14 | 0.2 | 0.2 | 22 | 0.5 | 0.03 |
| Medium | 391 | 132 | 554 | 20 | 0.2 | 0.2 | 31 | 0.7 | 0.04 |
My honest take
The setting where this made most sense to me was a Costa near an airport departure area, after walking around for a while alone and wanting something fresh; the 25p step from Small to Medium was the bit that felt worth checking.
My recommendation is the Medium if you’re buying it as your main cold drink. The price difference is small, and the jump from 291 ml to 391 ml is useful if you’re thirsty. That’s the size I’d go for on a warm day or when I wanted a fruit-led drink to last more than a few minutes.
But I wouldn’t call the Small a bad choice. It’s the better option if calories and sugar matter more to you than volume. At 95 kcal and 14 g sugar, it keeps the order more controlled while still giving you the same drink style.
Who should order it? Someone who wants a cold refreshing drink with strawberry, watermelon and mint in the name, and doesn’t mind that the Medium reaches 20 g sugar. Who should skip it? Anyone looking for the lowest sugar option on the menu would probably want to compare before ordering.
Frequently Asked Questions
Disclaimer
Prices shown are typical UK menu estimates for 2026 and may vary by store location, promotions, delivery services, or eat-in vs takeaway pricing. Nutritional values are based on standard drink configurations and may change depending on size, milk choice, extras, or recipe updates made by the brand.