Run the numbers.
Pick a monthly deposit and a horizon, and see what steady saving grows into. The figure and the curve update as you type, using a sample yield held constant the whole way.
What your deposits grow into
A savings growth estimate at a sample yield.
Estimate assuming a sample 4.3% APY compounded monthly, held constant. An illustration, not an offer or a projection of earnings.
How this estimate works
Each deposit starts earning the sample yield from the month it lands, and the interest it earns starts earning too - that is compounding, and it is why the curve above bends upward instead of climbing in a straight line. The calculator adds a deposit every month, applies the yield monthly, and rounds the final balance to the nearest dollar.
The one thing the estimate holds still is the thing real accounts never hold still: the rate. Savings rates are variable, and a bank is free to reprice the day after you open the account. Treat the figure as orientation - a way to feel the difference a longer horizon or a larger deposit makes - rather than a forecast of any account’s balance.
Where the number goes next
If the balance you just saw is worth chasing, the next step is picking the account that pays for it - our high-yield savings hub walks through comparing accounts on the parts that stay still when the headline rate moves. And if the money you are setting aside is currently servicing a balance somewhere else, it is usually worth checking what that debt really costs first - check your rate to see where you stand.