Free · Finance · Saving & Investing

Simple Interest Calculator

Calculate simple interest, ending balance, and effective total return without compounding.

  • Checked formula
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Calculator inputs

Enter your values

Result

Your calculation

Ending balance
US$11,500.00
Simple interest
US$1,500.00
Total return
15%

How to use this calculator

  1. Enter the amount, rate, timing, and fees that apply to your scenario.
  2. Calculate to compare the periodic result with total cost or growth.
  3. Change one assumption at a time and confirm current rates or rules before deciding.

Use the result with context

Results are estimates for planning and education. Confirm rates, taxes, fees, and legal requirements with the relevant institution or a qualified professional before making a financial decision.