Compound Interest Calculator

Savings Goal Calculator

Working toward a specific number — a house down payment, an emergency fund, or a dream trip? Enter what you already have and what you're aiming for, then choose whether to solve for the monthly contribution needed or the number of years it will take.

Required monthly contribution
$288
Projected balance
$50,001
Interest earned
$10,443
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Reverse-engineer your savings plan

Most calculators only project forward. This one works both directions: tell it your goal and it solves for the monthly contribution that gets you there in a fixed 10-year window, or — given a monthly amount you can actually afford — it tells you how many years you'll need. The math is the same compound-growth engine used across this site, tuned for goal-based planning.

When solving for the contribution, this tool assumes 10 years at your stated interest rate with monthly compounding. When solving for years, it uses the monthly contribution you provide together with your starting balance to find the exact horizon at which your balance crosses the target.