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True Margin Calculator
Free calculator that shows roofing contractors the exact minimum price they must charge per job to stay profitable, factoring in the waste and overhead that cost most roofers 3โ5% of net profit. No signup. Built by a 12-year roofing-company owner.
True Margin Calculator is a free web tool that shows roofing contractors the lowest price they can charge on a job and still make money.
Most roofers do not go out of business because of slow months. They go out because they underbid good work. Miscalculated waste and overhead cost the average roofer 3% to 5% of net profit on every job. Over a season, that is the difference between growing and just getting by.
The True Margin Calculator fixes the math. You enter your real numbers, and it gives you one clear figure: the "must-charge" price you need to hit to protect your margin on that specific job.
What it does: - Calculates your true minimum price per job, after waste and overhead are accounted for - Shows where your margin is leaking so you can fix your pricing - Helps you stop underbidding without pricing yourself out of jobs - Works on any device, with nothing to download, install, or sign up for
Who it is for: - Solo operators and small crews who handle their own estimating - Growing companies that want consistent, profitable bids across multiple estimators - Any roofing contractor tired of guessing whether a job will actually make money
Why trust it: The calculator comes from Roofing Software Guide, an independent, no-pay-to-play review platform for roofing software. It was founded by Matt Richardson, who spent 12 years running a roofing company and built the tool after watching capable contractors go broke over bad math. The same team publishes hands-on reviews, comparisons, and buyer's guides for the CRM, estimating, and measurement tools roofers use every day.
Completely free. No account, no email, no catch. Just enter your numbers and get your price.
A startup from Cincinnati, the United States that is founded by Matt Richardson.
