Monthly Investment Target Calculator

Estimate the monthly contribution required to reach a target under a fixed return assumption.

Target balance

Starting principal

Annual return assumption

Years

Assumptions

Required monthly contribution

$903.05

Projected ending balance

$500,001.14

Worked example

With a $25,000 starting balance, a $500,000 target, 20 years, and a 6% annual return assumption, the calculator solves for the month-end contribution that reproduces that target.