Estimate a project cost and timeline without guessing a number.

1. 1

   Start from a template or a blank list

   Pick the nearest template and change it, or add your own tasks. Give each task a best, likely and worst case in hours.

2. 2

   Set rates and extras

   Enter an hourly rate for each role, then overhead, a risk buffer, a discount and tax if you need them. Say how many people work in parallel.

3. 3

   Read the quote and share it

   The total, the range and the timeline update as you type. Copy the summary, download a CSV, print it or send the link.

Single-number estimates fail because every task has a range, and the risky ones are the ones people round down. This calculator asks for a best, likely and worst case for each task, turns them into an expected figure using the standard three-point (PERT) method, and widens the total when your tasks are uncertain. That gives you a quote you can defend and a safe figure to commit to.

What it does

• Each task gets a best, likely and worst case. The expected hours are (best + 4 x likely + worst) / 6.
• The spread between best and worst sets how much margin the 80, 90 or 95 percent figure adds.
• Hourly rates by role, project overhead, a risk buffer, discount and tax (GST or VAT).
• Timeline from the number of people and their productive hours a week.
• Starting points for a marketing website, a Shopify store, a web app MVP and a mobile app.
• Copy the summary, download a CSV, print to PDF or copy a link that restores the same estimate.