They're interchangeable as a white liquid for cereal, but in terms of nutrition, they're quite different. Almond milk has very little protein and no calcium naturally. Dairy milk is often higher in calories.
8 ounces of 2% reduced-fat milk > 122 calories, 4.8g fat, 8g protein
8 ounces of 1% low-fat milk > 102 calories, 2.4g fat, 8g protein
8 ounces of fat-free milk > 83 calories, 0.2g fat, 8g protein
8 ounces of sweetened original almond milk > 60 calories, 2.5g fat, 1g protein
8 ounces of unsweetened original almond milk > 30 calories, 2.5g fat, 2g protein
Find out our favorite almond milks.