This calculates the Effective APY for a bank account bonus given the amount invested, the sign up bonus to be received, the days required for it to be on deposit, a variable number of buffer (cushion) days at your discretion, any fees to be paid as well as any interest the targeted bank account pays out. Please do not include commas, percent signs, or dollar signs when entering your values. (Disclaimer: use this calculator at your own risk — you should manually verify the calculator is working according to your expectations.)
| Investment | |
| Sign Up Bonus | |
| Days Required | |
| Days Buffer | |
| Total Fee(s) | |
| Interest Rate of Account (%) | |
| Effective APY | |
Generate a link to this calculator with your above data, and copy it to your clipboard. You can then paste it anywhere you like — e.g. in a blog entry, your journal or to perhaps share with some friends in Discord.
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