Tuna Mayonaise (6-inch)
Price variesset by each branch, so check the Subway app
400 kcal
22g protein
Updated 12 September 2026
Tuna Mayonaise (6-inch) at Subway carries 400 kcal and 22g of protein. Updated 12 September 2026.
Subway publishes no price for this item that we can verify, and its restaurants price independently of each other, so the figure you pay is set at your own branch. We leave the price blank rather than print a national average nobody charges.
Nutrition Information
Per 6-inch serving
As published by Subway · 1675 kJ
| Nutrient | Amount | % RI (calculated) |
|---|---|---|
| Energy | 400 kcal | 20% |
| Fat | 16g | 23% |
| of which saturates | 3.4g | 17% |
| Carbohydrate | 43g | 17% |
| of which sugars | 6.6g | 7% |
| Fibre | 2.4g | — |
| Protein | 22g | 44% |
| Salt | 1.8g | 30% |
% RI is our calculation against the UK reference intake for an average adult: 2,000 kcal, 70g fat, 20g saturates, 260g carbohydrate, 90g sugars, 50g protein and 6g salt. Subway publishes the amounts, not these percentages.
Everything You Need to Know About Subway Tuna Mayonaise (6-inch)
How to order Tuna Mayonaise (6-inch) at Subway
Counter, kiosk and app all carry it. The Subway app adds collection and delivery. It is filed under Subs. Not every branch stocks it, and the app is honest about that before you pay.
Subway Tuna Mayonaise (6-inch) price in 2026
There is no verified Subway Tuna Mayonaise (6-inch) price for 2026. Subway prices per branch and publishes no national list for it, so the accurate figure is the one your own branch shows in 2026. Any site quoting a single exact national price for this item is guessing, and we would rather show the gap.
A lighter choice in the same section
Philly Steak (6-inch) sits in the same part of the menu at 297 kcal, which is 103 fewer than this for £5.49. That swap is the single biggest change available inside this section, and it needs no substitution or special request at the counter.
Finding it near you
We list 2,015 Subway branches across 4 of the four UK nations, with the Northern Ireland postcode area holding the most at 86. Menus vary by site, so a listing here is national rather than a promise about your nearest one. The Subway app confirms it in seconds.
Salt worth knowing about
At 1.8g of salt it accounts for 30% of the 6g daily maximum the NHS recommends for adults, a noticeable share of a day in one item. Salt in restaurant food is fixed in the recipe, so the only control you have is what else goes alongside it.
Protein for the calories
It gives 5.5g of protein per 100 kcal, against a menu average of 6.1g across everything we hold for Subway. That is about average for this menu, which matters more than the raw protein figure when you are comparing two items of different sizes. On raw protein it ranks 38th of 48 in its section.
Pro Tips for Ordering Tuna Mayonaise (6-inch)
Ordering it
The figure in the table is the standard build. Anything added at the counter sits on top of it, and anything left out comes off, which is a normal request at Subway rather than an awkward one.
What 400 kcal means here
400 kcal is well below the Subs average. That is a normal single course for most people, and it leaves room for a side. The 2,000 kcal figure printed on UK menus is a reference intake for an average adult, not a target, and it is the number these percentages are worked against.
Frequently Asked Questions About Subway Tuna Mayonaise (6-inch)
How much is Tuna Mayonaise (6-inch) at Subway?
How many calories are in Tuna Mayonaise (6-inch)?
What is a lighter alternative to Tuna Mayonaise (6-inch)?
Is Tuna Mayonaise (6-inch) a good source of protein?
How much salt is in Tuna Mayonaise (6-inch)?
Is Tuna Mayonaise (6-inch) available at every Subway in the UK?
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Lincolnshire Sausage and Bacon (6-inch)
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About Subway - Sandwich & Lunch Restaurant
Subway trades as a sandwich & lunch chain in the UK, and we list 2,015 of its branches. We track 212 of its menu items across 15 sections, recheck them on a rolling schedule, and name the source of every figure. UK Menu Prices has no connection to Subway and earns nothing from your order.
