Rebirth ROI Tool
Model the cash multiplier vs. time-to-rebuild for your next Rebirth.
The Rebirth ROI tool models whether your next Rebirth is worth it. Enter your current cash multiplier, your current passive income, and the next Rebirth tier — the tool returns the time-to-payback and the projected lifetime income gain.
How To Use
- Enter your current Rebirth count.
- Enter your current passive income per second.
- Enter the upgrade cost of your next weight (optional — for combined scenarios).
- The tool returns the projected time-to-payback for the next Rebirth.
When To Rebirth
The rule of thumb:
- Rebirth 1 — As soon as you can afford it. The reset cost is negligible.
- Rebirth 2-4 — When the next reset pays for itself within an hour.
- Rebirth 5+ — When your income exceeds your upgrade spending and you can rebuild Brain Power in under an hour.
Related Pages
The Rebirth ROI tool models whether your next Rebirth is worth it. Enter your current cash multiplier, your current passive income, and the next Rebirth tier — the tool returns the time-to-payback and the projected lifetime income gain.
How To Use
- Enter your current Rebirth count.
- Enter your current passive income per second.
- Enter the upgrade cost of your next weight (optional — for combined scenarios).
- The tool returns the projected time-to-payback for the next Rebirth.
When To Rebirth
The rule of thumb:
- Rebirth 1 — As soon as you can afford it. The reset cost is negligible.
- Rebirth 2-4 — When the next reset pays for itself within an hour.
- Rebirth 5+ — When your income exceeds your upgrade spending and you can rebuild Brain Power in under an hour.
Related Pages
Frequently Asked Questions
Quick answers to the most common questions.
Is the ROI tool accurate?
It uses the same multiplier curve documented in the [Rebirth guide](/guides/how-to-rebirth/). Update 3 rebalance is reflected.
What if my income spikes mid-run?
Re-run the tool with your latest numbers. The model is dynamic.
Should I always Rebirth as soon as possible?
Yes, especially for the first three tiers. The early multiplier is the highest-leverage move in the game.