Breaking a project into individual tasks with their own time estimates produces a far more reliable total than guessing at the project's overall duration in one lump estimate — smaller estimates tend to be more accurate, and errors partially cancel out across many tasks.
Add each task with its estimated hours, and this tool totals everything up, converts to standard 8-hour work days, and optionally multiplies by an hourly rate to estimate total project cost.
This bottom-up estimating approach is standard practice in project planning and freelance quoting, since it forces a more careful, itemized look at what a project actually involves rather than a single rough guess.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this conversion or calculation often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Because there's no sign-up or installation step, you can jump straight from search result to working tool in a couple of seconds.
Frequently asked questions
Why is task-by-task estimating more accurate than one overall guess?
Breaking work into smaller pieces makes each individual estimate easier to reason about accurately, and estimation errors across many small tasks tend to average out rather than compounding in one direction.
Should I add buffer time for unexpected issues?
Many experienced estimators add a contingency buffer of 10–20% on top of the raw task total to account for unforeseen complications, which you can factor in by padding individual task estimates.