Hi James - I think it allows for the bike but not luggage. Here's the additional information about how our calorie calcuator works:
Our Calorie Calculator estimates how many Calories you will burn using Metabolic Equivalent (MET) values from the Compendium of Physical Activities. The Compendium idenitifes the relative energy cost of undertaking various activities compared with doing nothing. We then combine this with your weight and the estimated duration of the activity, taking into account the length of the route and the hills involved, to estimate the total Calories burned.