Food & Drink
How many calories are in a McDonald's Big Mac, according to McDonald's US nutrition data as of 2026?
Answer
580 calories
The Big Mac debuted in 1967 for 45 cents, and for years it held steady at 550 calories — until McDonald's 'Best Burgers' tweaks, with more Big Mac sauce and freshly grilled onions, nudged it up to 580.
Source: McDonald's US nutrition information (mcdonalds.com)
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