Earn Over Time Calculator

Calculate the future value of your investment with regular contributions over time

Input Parameters

Calculation Results

Future Value

$0.00

Total Contributions: $0.00
Total Interest Earned: $0.00

Calculation Formula

FV = P × (((1 + r/n)^(nt) - 1)/(r/n)) + PMT × (((1 + r/n)^(nt) - 1)/(r/n) - nt)

Where:
FV = Future Value
P = Principal (initial investment, if any)
r = Annual interest rate
n = Number of times interest applied per time period
t = Number of time periods
PMT = Regular contribution per period

Earn Over Time Calculator Calculator Usage Guide

Learn how to use the Earn Over Time Calculator calculator and its working principles

How to Use the Calculator

  1. Enter your monthly contribution amount in the "Monthly Contribution" field.
  2. Enter the annual interest rate in the "Annual Interest Rate" field. For example, enter 7 for 7%.
  3. Enter the investment period in years in the "Investment Period" field.
  4. Click the "Calculate" button to see the future value of your investment.
  5. Click the "Reset" button to clear all input fields and start over.

Understanding the Results

The calculator will display the future value of your investment, total contributions made, and total interest earned. The formula used is:

FV = P × (((1 + r/n)^(nt) - 1)/(r/n)) + PMT × (((1 + r/n)^(nt) - 1)/(r/n) - nt)

Where:

  • FV = Future Value
  • P = Principal (initial investment, if any)
  • r = Annual interest rate
  • n = Number of times interest applied per time period (12 for monthly)
  • t = Number of time periods (years)
  • PMT = Regular contribution per period

Example

If you contribute $500 per month for 10 years at an annual interest rate of 7%, the calculator will show you the future value of your investment, the total amount you contributed, and the total interest earned.