Calculators & Quizzes
See the estimated memory payoff from saving idle tabs, closing them, and restoring them later.
Runs entirely in your browser. Nothing leaves your device.
How it works
- Enter the number of tabs currently open in Chrome.
- Set how many you truly need for the task in front of you.
- The calculator estimates the idle set, applies an average memory cost, and multiplies by 0.95 for the reclaim estimate.
- Compare Memory Saver against saving and closing the tabs outright.
Why closing saved tabs beats carrying idle tabs around
Chrome is better than it used to be at controlling background tabs, but a visible tab is still a claim on your attention. Memory Saver can discard inactive tabs and recover much of their memory, yet the tab remains in the strip, can reload at an inconvenient moment, and may stay active if it is playing media, holding a form, or doing real work in the background.
This calculator starts from the simple end of the tab memory model: 150 MB per average tab, or 350 MB when your idle tabs are mostly heavier apps. It then assumes closing the idle set recovers 95% of that memory. That is why even a modest cleanup can matter. Saving and closing 30 ordinary tabs is not just visual tidying; it can be several gigabytes of working room on an 8 GB machine.
The recommended move is not to close tabs blindly. Snapshot the set first, give it a useful name, then close the tabs you do not need right now. You keep the option to restore the session later while giving Chrome and your own brain less to keep loaded.
Frequently Asked Questions
Where do the RAM reclaim numbers come from?
This calculator uses a simple estimate: 150 MB per ordinary tab, or 350 MB per tab when you say your tabs are mostly heavy apps. Reclaim is calculated as closed tabs times that estimate times 0.95, reflecting the 90-95% savings range from discarding or closing inactive tabs. Treat it as a planning estimate, then verify with Chrome Task Manager.
Memory Saver vs closing tabs: which is better?
Memory Saver is convenient because tabs stay visible and reload when clicked, but it only helps tabs Chrome can safely discard. Snapshot-and-close frees the whole tab, clears the tab strip, and makes the session explicit. The better move is Memory Saver for passive help and snapshots for work you want to preserve but stop running.
Will Chrome reload everything when I restore?
When you restore a saved group, Chrome opens the URLs again. Pages that require sign-in, live state, or unsaved form text may not return exactly as they were, so finish fragile work before closing. For normal research tabs, docs, dashboards, and reading lists, restore is usually the right tradeoff.
Does this work the same in Edge or Brave?
The broad memory math is similar because Edge and Brave are Chromium-based, but each browser has different sleeping-tab and performance settings. Use the result as a directional estimate, then check the browser's own task manager or performance page for exact numbers on your machine.