calculate into

calculate (something) into (something)

To include a particular amount as one does calculations. When you submit your travel expenses for reimbursement, be sure to calculate gas into the total. Wait, I didn't calculate the tip into each person's total, so we need to give the server more money.
See also: calculate

calculate something into something

 and calculate something in
to include something in one's calculations. Did you calculate the cost of the cake into the total? Yes, I calculated in all the costs.
See also: calculate