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It's All Here. Or It's Not.
Thursday, October 19th, 2017
 

This is the personal website of Sherri Wheeler. Web developer, mom, gamer, geek, and owner of Avinus Web Services (among other projects).

OfItAll Network

I love this domain - OfItAll.com - it allows me to do all kinds of fun things with subdomains. Anyway, these are my personal websites and here you'll find all kinds of random info, links, and stuff I find interesting or I'm working on. Enjoy!

Savings Timeframe Calculator

How long to reach a given savings target. (Scroll down for help.)

Yearly Interest Rate (%)
Initial Balance
Monthly Contribution
Target Final Balance

Results:
Approximate time until savings goal is reached (nper):

Years
Months


Legend

Interest Rate
The yearly interest rate you will earn. Assumes monthly compounding (like a savings account).
Initial Balance
The amount of funds you will have to start with.
Monthly Contribution
Amount you will contribute monthly to the account. Enter zero for none.
Final Balance
The total amount of funds you want to end up with.

This financial math calculator is the Time Value of Money annuity formula solved for n (number of months). Similar to Excel's nper formula.

Formula:
n = log( (i*FV+PMT)/(i*PV+PMT) )
	-----------------------
	     log (i + 1)
Where:
n = number of months
i = monthly interest rate as a decimal (ex 4% annual use: 4/1200)
FV = future value of annuity
PV = present value of annuity
PMT = amount of each monthly payments
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