Project Time Estimator
Break a project into tasks, add a realistic buffer, and get hours you can quote with confidence.
Most project overruns are not caused by laziness but by estimates that never counted the real work. This project time estimator starts from the shape of the job: how many tasks it contains and how long a typical task takes. Multiplying those two gives a base estimate, and then a buffer is added for the things that always appear — revision rounds, feedback delays, setup, testing, and communication. The buffer is not padding to inflate the price; it is the difference between an estimate that survives contact with a real client and one that quietly eats your evenings. The calculator also converts the hours into a fee range at your hourly rate, so the estimate becomes a quote instead of a vague number. Use it before you send a proposal, and revisit it when the scope changes, because every added task moves the total. All calculations run in your browser and nothing is stored.
Your numbers
Your estimate
Recommended tools
Project management and time-tracking tools we are reviewing. No recommendation yet — placeholder for vetted picks only.
How to use the result
- Quote inside the fee range: the low end is the no-surprises price, the high end covers revisions and delays.
- If the buffered total feels too big, shrink the scope — do not just delete the buffer, because the buffer is the part that keeps the project profitable.
- Track actual hours against the estimate after delivery so your next estimate uses real data, not guesses.
Frequently asked questions
What buffer should I use?
Start with 20% for familiar work and 30–50% for new clients, new tools, or vague requirements. Raise the buffer when the brief has open questions.
Should I show the client the buffer?
Usually no. Show the task breakdown and the total price. The buffer is your internal protection, not a line item to negotiate away.
What if the project grows mid-way?
Re-run the estimator with the new task count and send a revised quote before doing the extra work. Scope changes without a revised quote are how fixed-price projects lose money.