Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Interest
$750
Total balance
$5,750
Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter principal ($).
- 2Enter annual rate (%).
- 3Enter years.
- 4Read your interest on the right — it updates as you type.
- 5Hit Share to keep the scenario or send it to someone.
About this calculator
Compute simple interest on a principal over a number of years.
FormulaI = P × r × t