What does "you are up to" mean?

Question

I am asking for this idiom " you are up to" and I want to know the meaning.

Thank you

G-

Answer 1

it means you're fit

Answer 2

Up to:1/used to indicate upward limit or boundry.(With your 960 points

     in yahoo answers,you are almost up to the second level)

         2/as far as,until.(A couple of years more, and you will be up to

          your brother's height.)

          3a/equal to(Regarding sports,I am sure,you are  up to the gold

               winner)

          3b/good enough for(With your calibre,you are up to the selection

          4/engaged in{a suspect activity}(Well, I knew,you were up to

            some mischief !)

         5/being the responsibility or choice of (It is up to you to decide)

Answer 3

or you say to someone.. ''you are up to no good''' implying.. I know that you have plans which will get you into trouble...

What are you up to.. ''What are you planning to do?

you are up to no good '' you plan to carry out an action that will lead to no good''

and of course they are right also... Let's all go for a 4 mile jog, are you all up to it? meaning.. are you all fit and willing for this...

are you up to translating 3 pages from English to French for me..  you could ask someone of whom you know they speak both those languages but asking them..  are you game.. are you willing to do this for me...

are you up to climbing the stairs to the 6th floor or shall we take the lift.. are you fit enough that we take the stairs or should we rather wait for the lift...

they gave some good examples...

Answer 4

Another context and meaning is 'you are up to no good' which means you are involved in something bad.

Answer 5

I think it means you have a "natural gift" for something, for example "you are up to maths" I think it means you are very good at maths.

Sorry I tried, I'm italian....

Answer 6

There are too meanings, if you want to know the meaning of a word or phrase you should provide the context.

I suspect you are asking about the phrase "are you up to"

a. You are up to climbing a tree....which means you want to and have the ability.

b. What you are up to in the book? To which page have you studied.

Are you up to...means doing. What are you up to...what are you doing?