How do you say how are you all today in German?

Answer 1

Formal: Was machen Sie? Informal: Was machst du?

Use formal with strangers, older people, people you're not familiar with, and sometimes even with friends. Use informal with children, family, and really close friends.

Answer 2

You ask "was machst du heute". (What are you doing today?)

Also possible, grammatically more correct but a lot less common would be "was wirst du heute tun?".

Answer 3

"What have you been up to today?" = "Was hast du heute so gemacht?"

"What have you been up to today?" = "Was hast du heute angestellt?"

Answer 4

Wie geht es Ihnen heute alle.

Answer 5

Hast du heute viel zu tun ?