For questions regarding the use of spreadsheet programs (such as MS Excel, Google Sheets, OpenOffice Calc, etc.) in personal finance, including questions about spreadsheet financial functions.

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### Daily interest calculation combined with monthly compounding: Why do banks do this, and how-to in Excel?

I often see banks advertise (for accounts with fixed yearly interest, let's say 1.5%) – "interested is calculated daily, and compounded monthly". I have 2 questions: Why are they calculating ...
60k views

### How do I calculate monthly compound interest in Google Sheets?

I have a financial spreadsheet with a column of all my deposits into my savings account. The leftmost column lists the dates of the deposits. Now, let's say my savings balance is \$100.00 and my ...
4k views

### How can I calculate a “running” return using XIRR in a spreadsheet?

I should say that I'm not married to XIRR, I just want to calculate the return on a running basis in a column next to dates, deposits and balances. Here's a screenshot of a simplified spreadsheet in ...
9k views

### How to calculate the number of months until a loan is paid off (given principal, APR and payment amount)?

Does anyone know what formula they use for this When will you be debt-free? calculator? I want to put it in a Google Spreadsheet, but I can't find a payments-to-debt-free formula using my Google ...
185 views

### Daily Interest Monthly Compounding Multiyear

I downloaded the Excel spreadsheet mentioned in the accepted answer to this question: Daily interest calculation combined with monthly compounding: Why do banks do this, and how-to in Excel? It was ...
225 views

### How can I calculate the annualised growth rate for an irregular investment?

I have a portfolio, which I invest in monthly. Depending on my circumstances, the monthly amount changes from time to time (perhaps every two years or so). I want to calculate the annualised growth ...