If you were financially fortunate enough to be able to gift someone an actual house this year for Christmas, you’ll want to do more than just hang a big bow on the front door. Unwrapping a mysterious present is half the fun of getting a gift, and with this handy calculator you’ll be able to figure out just how many rolls of gift wrap you’d need for such a daunting task.

Compared to the cost of a house, the £860 worth of paper you’d need to wrap your typical 2,000 square foot dwelling isn’t that expensive. But if you’re trying to stretch every pound, the calculator also lets you opt for newspaper or aluminium foil as cheaper alternatives. [Movoto]