ETA Calculator Guide
Estimate a finish time from progress, elapsed time and remaining work.
ETA means estimated time of arrival or finish. ETA Calculator divides elapsed time by the number of completed items, then uses that rate to estimate the remaining time. It assumes all items take about the same time.
Read the default example
The page starts with Total items 100, Completed 25, and Elapsed (seconds) 30. Progress should be 25.0%, Items remaining should be 75, and Remaining time should be 1m 30s. Estimated finish is your local clock time plus that remaining time, so it changes depending on when you open the page.
Change Completed to 0. The results disappear: there is no measured speed yet. Enter a positive completed count no greater than Total items to get results again. If later items are harder than earlier ones, the ETA will be optimistic. Use it to revisit an estimate, not to promise a deadline.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Dates, Timestamps, and Time Zones.
Questions you might have
- How accurate is it?
- Only as accurate as the assumption that the remaining work resembles the work already done. It is most useful for spotting an overrun early, not for planning.