ETA calculator

    Estimate when a repetitive task will finish from its throughput so far.

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    About the eta calculator

    Projects a completion time from how much work is done and how long it has taken, reporting throughput, time remaining and a finishing timestamp. Useful for migrations, backfills and batch imports where the progress bar is a log line.

    Frequently asked questions

    How accurate is the estimate?

    It is a straight-line projection from the average rate so far. Jobs that slow as they progress — growing indexes, filling disks, rate limits — finish later than predicted, sometimes much later.

    How do I improve the estimate?

    Recalculate periodically using only recent progress rather than the whole run. A rate measured over the last few minutes tracks a changing workload far better than a lifetime average.