What is the easiest way to count my calories for meal prep?

I've just started meal prepping and I'm looking for an easy way to count my calories or macro's for the whole week.<br><br>I'm currently cooking 2 meals a day for 7 days at a time and i don't want to have to weight every item.<br><br>The food I'm cooking is generally the same, Chicken, Brown Rice, Sweet Potato and mixed vegetables.. <br><br>I just want to know how to work out the calories in the food I'm making, per serving. <br><br>Any help or tips would be massively appreciated.