Home / Resources / Insurance calculators Home insurance calculator and contents calculator Being underinsured can leave you well short after a total loss. These free calculators give you a quick estimate to start from. Home building calculator Estimates the cost to rebuild your home. Answer a few questions about the house and print a PDF report of the estimated replacement value at the end. Open the home building calculator Home contents calculator Written in plain English, it helps you add up the cost to replace your belongings room by room, with a PDF report at the end. Open the contents calculator Calculator results are estimates only. Talk to us before you change your sum insured. Want a second opinion on your sum insured? Bring your calculator report in or send it through, and we’ll check it against your policy. Contact us