All calculators at a glance
Construction calculators for builders and contractors
Choose the question you need to answer, enter the figures and see the result immediately. Every calculator works without an account.
Your entries stay in this browser and are not sent to our server.
Price and margin
Turn job cost into a defensible selling price and check what remains as gross margin.
Billing and payment
See the amount due now, what stays retained and how payments are split over the job.
Dates and changes
Test completion dates, price changes and the commercial effect of changed scope.
Check the same figures against a real project file
During a trial period the calculation runs inside the product, where it reads the budget, the awards and the invoices instead of asking for the numbers again.