Free tools for the numbers that matter.
Retainage, over/under billing, change order markup and cost-to-complete. The math every contractor runs every month, done right, with the formulas shown. No signup. Runs in your browser. Share any result with a link.
Retainage calculator
Retainage held, payment due this period and balance to finish, G702 style.
Open calculator →Over/under billing (WIP) calculator
Cost-to-cost % complete, earned revenue and over/under billing. Single job or a mini WIP schedule.
Open calculator →Change order markup calculator
Price a CO: OH&P, tiered sub markup, insurance and bond, with a waterfall.
Open calculator →Estimate at completion calculator
EAC, cost-to-complete, budget variance and margin fade from where the job is today.
Open calculator →How connected is your stack?
10 questions, 3 minutes. Score your systems across five dimensions and get concrete next steps.
Take the assessment →Standard industry formulas (G702 retainage, cost-to-cost percent complete). Every tool shows its math.
Nothing you type leaves your browser. Inputs live in the URL only when you choose to share it.
Print a clean one-page summary for a PM meeting, an owner, or your bonding agent.