0 calories, and either free or 40 cents depending on which McDonald's supplied it.
The McDonald's Mustard Packet price was recorded at $0.00 and at $0.40, the free-or-charged split that runs through every packet condiment in this section. Calories are 0, which is the company's own published figure and the only zero on the list. Menu labelling in the US rounds, so a published 0 means a count that rounds away to nothing. Nothing else here reads that low.
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What you need
4 itemsMustard Packet price and calories
| Item | Typical price | Price range | Calories |
|---|---|---|---|
| Mustard Packet | varies | $0.00 – $0.40 | 0 Cal |
If something goes wrong
Searching the McDonald's site for mustard packet returns nothing
- Cause
- The product page for this item sits at an address ending in mustard-package rather than mustard-packet, while the page itself is titled Mustard Packet. A search on the exact phrase can miss it.
- Fix
- Search for mustard on its own and take the condiment result. The page states 0 calories, which confirms the right item.
The packet was charged for
- Cause
- Approximately 95% of US restaurants are run by franchisees, on the company's Form 10-K figure, and each operator decides whether condiment packets are included with an order or sold at 40 cents.
- Fix
- Ask how many come with the order before paying. The answer is set by that restaurant and staff will know it.
A zero-calorie label seems too good to be true
- Cause
- Published counts are rounded under US menu labelling, and above 50 calories the rounding runs to the nearest ten, which is why every figure in this section but Tangy Barbeque Sauce at 45 ends in a zero. A published 0 is a rounded figure rather than a measurement of nothing.
- Fix
- Treat 0 as negligible rather than absolute. For a mustard packet the practical effect on a meal total is the same.
No allergen detail is shown for the packet
- Cause
- The allergen list could not be read from the product page, because that panel is generated by a script once the page has loaded rather than written into the page source.
- Fix
- Open the McDonald's product page and wait for the panel, or ask in the restaurant for the printed allergen guide. Mustard itself is a declared allergen in several markets.
Zero, and what a published zero actually means
Ten items sit in this section and nine of them carry calories. This is the one that does not. McDonald's publishes 0 for a Mustard Packet, which makes it the only figure of its kind here and one of very few anywhere on the menu.
What's in it
Zero, as published. That is worth unpacking rather than repeating, because a published zero is a labelling outcome and not a physical claim. US menu labelling rounds calorie counts, and above 50 the rounding goes to the nearest ten, which is why every other number in this section ends in a zero bar Tangy Barbeque Sauce at 45. A packet reported as 0 is a packet whose count rounds away to nothing. Practically that settles the matter for anybody totting up a meal, since the difference between 0 and a rounded 0 will never show up in a day's eating.
Set against the rest of the list, the gap is large. Ketchup Packet is 10. Honey is 50. Mayonnaise Packet is 90, and the heaviest dips reach 110. Anyone choosing a condiment on calories alone has a clear winner and it costs the same as the others.
What could not be read is the allergen list, along with sodium and every other macro, because the panel holding them is built by a script in the browser rather than written into the page source. Mustard is a declared allergen in several markets and a common sensitivity everywhere, so this is a real gap rather than a cosmetic one. It has been left open instead of filled with a guess.
Is it worth it
The price question resolves into a policy question. Recorded figures were $0.00 and $0.40, with nothing between, and a range like that is not a range: a restaurant either includes packets with the order or sells them. McDonald's Form 10-K puts the share of US restaurants operated by franchisees at approximately 95%, and the operator decides. Averaging the two ends gives 20 cents, which is a price no branch charges.
One small oddity is worth knowing before searching for this item. The product page lives at an address ending in mustard-package while the page itself is titled Mustard Packet, so an exact-phrase search on the company's own site can come back empty. The 0-calorie sentence is the reliable way to confirm the right page has loaded.
Prices were recorded from published US listings and checked on 19 August 2026.
Mustard Packet at a glance
- McDonald's price
- not published
- Calories
- 0, from McDonald's
Questions people ask
How many calories are in a McDonald's mustard packet?
0, which is the company's own published figure and the only zero in this section. Ketchup Packet is next at 10.
Is mustard free at McDonald's?
In many restaurants, yes. In others it was recorded at 40 cents, and nothing between the two figures turned up, because the decision is a local policy.
Does a zero-calorie label mean the packet has no calories at all?
Not quite. Published counts are rounded under US menu labelling, so a printed 0 means a count that rounds away to nothing rather than an absolute absence.
Why is the product page address different from the item name?
The page is titled Mustard Packet but sits at an address ending in mustard-package. Searching for mustard alone finds it more reliably than the exact phrase.
Is this page an official McDonald's price list?
No. HelpMeLogin is independent and unaffiliated with McDonald's. The 0-calorie count came straight from McDonald's; the prices came from published US listings, checked on 19 August 2026, and neither is an offer.
Can this site tell me the price at my local McDonald's?
No. Franchisees set their own condiment policy, so the same packet is free in one branch and 40 cents in another. The app gives that restaurant's figure.