McDonald's Ketchup Packet Complete Information
A McDonald's Ketchup Packet carries 10 calories. The live restaurant listings this site verifies against publish no price for it, which is consistent with how it works at the counter: ketchup rides along with a fries order on request rather than being sold.
It is the most ordered condiment in the building and the one nobody thinks about, which is why the calorie figure is worth knowing: at 10 calories a packet it is the lightest thing on the sauce card alongside the 0 calorie mustard. Three or four packets across a large fries order still adds less than a single dip cup of $0.39 Creamy Ranch. McDonald's ketchup is a standard tomato ketchup formulation rather than a proprietary recipe, unlike most of the sauce card. Pair it with Small French Fries or a Hamburger.
Health Insight
At 10 calories, this one is on the lighter side of the menu.
Lighter alternative: Mustard Packet on the same menu comes in at 0 calories. See Mustard Packet