How many calories in whole boiled chicken?

It depends whether the chicken is 2 lbs or 5 lbs. If I ate a whole chicken, it would be with skin, wings, legs, breast, everything. I heard the calories are the same with boiled, baked, roasted, or poached. I am assuming that an average chicken would be 2-3 lbs. So my guess would be 400 calories per lb? Can anybody confirm this?