Project Price Calculator
Turn an hours estimate and your hourly rate into a confident fixed-bid quote, with a contingency buffer for revisions and scope creep.
Quote fixed prices with confidence
Clients love a fixed price because it removes their risk — but that risk doesn't vanish, it moves to you. The way to quote fixed work profitably is to build the number from a realistic hours estimate and your true hourly rate, then add a buffer that absorbs the revisions, edge cases, and scope creep every project accumulates.
Enter your estimated hours, hourly rate, and a contingency percentage, and this calculator shows the base cost, the buffer it adds, and the final quote. A 15–30% buffer is a sensible starting range: tighter for well-defined work you've done before, wider for anything ambiguous or new. The goal is a price that still profits even when a project runs slightly long — which most do.
How it's calculated
Base = estimated hours × hourly rate. Quote = base × (1 + buffer ÷ 100). Buffer added = quote − base. Everything updates live in your browser.
Frequently Asked Questions
How should I price a project?
Estimate the hours honestly, multiply by your hourly rate, then add a buffer for risk, revisions, and scope creep. This calculator does exactly that so your quote covers the real work.
Why add a contingency buffer?
Estimates are optimistic by nature. A 15–30% buffer absorbs revisions, unexpected complexity, and client delays so a slightly-over project still stays profitable.
Should I quote a fixed price or hourly?
Fixed price rewards efficiency and gives clients certainty, but only works with a clear scope. Use this tool to build the fixed number from an hourly estimate, then quote the total.
Is this calculator free and private?
Yes. It runs entirely in your browser — no sign-up and nothing is uploaded.
Pricing and positioning strategy for freelancers and agencies.