Sumbric · money, made legible

See what steady saving can become.

Model a starting balance, recurring deposits, and compound growth over time. The result shows the path year by year, not just the finish line.

The compound-interest calculator

Make the curve visible.
Start with a balance, add a regular deposit, and see how compounding changes the path.

Your starting balance, from $0 to $1 billion.

Deposited at the end of every compounding period.

The nominal annual rate, from 0% to 100%.

Use a whole number from 1 to 100 years.

Frequency controls both how often interest compounds and how often the contribution is deposited.

How this estimate works

This uses a nominal annual rate, compounds it at the selected frequency, and adds each contribution after that period's interest. It does not account for taxes, fees, or inflation.

Your growth, year by year.
Your projection will appear here.

Small deposits, visible momentum.

Enter your assumptions to see how much came from your deposits and how much came from interest.