# ETA Calculator Guide

Estimate a finish time from progress, elapsed time and remaining work.

- Tool: https://ilham.dev/tools/eta-calculator/
- Guide URL: https://ilham.dev/guides/eta-calculator/
- Tool guides index: https://ilham.dev/guides/tools/
- Broader guide: Dates, Timestamps, and Time Zones (https://ilham.dev/guides/dates-times-and-time-zones/)

## What it does

Estimate a finish time from how much is done, how long it took and how much is left, assuming the current rate holds.

## Use the tool

Open https://ilham.dev/tools/eta-calculator/, add the input the tool asks for, run it, and check the output before using it elsewhere.

## Input and output

- Input: text.
- Output: text.
- Category: Math.

## Privacy and processing
Processing happens locally in your browser. This tool does not upload the input to ilham.dev.

## Questions

### 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.