Website Cost Calculator

Web project costs are opaque by design — most agencies prefer you to enter a sales conversation before you know what anything costs. This calculator is the opposite. It surfaces the real cost drivers, shows you what each decision adds to your budget, and gives you an honest range before you speak to anyone.

The Eight Cost Factors

Web project cost is driven by eight primary variables. The calculator weights each of these based on data from 60+ projects across SaaS, FinTech, e-commerce, and agency work. Understanding what each factor adds helps you make informed trade-offs before the brief is written.

• Project type — a marketing site costs less than a web app; a web app costs less than a complex platform. The tool differentiates between brochure, marketing site, SaaS front-end, e-commerce, and custom web application
• Page count — each page adds design, development, and QA time. The relationship is not linear: pages 1–5 are the most expensive per-page; pages 6–15 become cheaper as patterns are established
• Design complexity — standard design (clean, component-based) vs custom design (bespoke illustrations, complex animations, non-standard layouts) is the largest single cost variable after project type
• Integrations — CMS, CRM, payment gateway, analytics, email platform, and third-party API integrations each add scoping, development, and testing time
• Content — does the project include copywriting and content production, or just design and development? Content is often underestimated and frequently becomes the critical-path bottleneck
• Revisions — the number of included revision rounds directly affects cost. One round of feedback per major milestone is standard; unlimited revisions is not a real offer, it is a pricing model that hides costs elsewhere
• Timeline — accelerated timelines require more parallel resourcing and carry a genuine cost premium. A 4-week turnaround for something that normally takes 10 weeks costs more per week, not less in total
• Ongoing support — monthly retainer for updates, hosting management, and performance monitoring versus a hand-off with no ongoing relationship

What the Output Means

The calculator returns a range, not a fixed number. The lower bound assumes standard design, efficient delivery, no scope changes, and your team providing content on time. The upper bound assumes design iteration, content delays (which are common), and reasonable scope refinement during the project.

A reputable agency should quote within the range the calculator produces for your inputs. Significantly below the lower bound typically indicates either underscoped work (things you assumed were included are not) or a payment model that makes up the difference elsewhere. Significantly above the upper bound warrants a detailed conversation about what is driving the premium.

How to Use This in a Brief

• Run the calculator before writing your brief — the cost factors map directly to the decisions your brief needs to make explicit
• Use the range as your internal budget benchmark, not as a figure to share with agencies during procurement
• If the range is above your available budget, the tool shows which factors are driving the cost — you can make informed trade-offs (reduce page count, simplify design, phase integrations) rather than cutting scope arbitrarily
• If multiple agencies quote significantly below the lower bound, ask them to itemise what they have scoped — the gap is almost always in items you assumed were included

“I used this before our RFP process and it gave me a defensible internal benchmark. When proposals came in, I could have an informed conversation about scope rather than just comparing headline numbers.”

— Head of Digital, Mid-Market Retailer