Compound interest calculator

Tweak your starting amount, monthly top-ups, and growth rate to see how your balance compounds over time.

Starting amount

Monthly contribution

Annual interest rate

Invest from age

years old

Until age

years old

Total contributed

Projected balance

Growth earned

Balance growth over time

Retirement runway

Monthly living expense

Inflation rate

If you retire at 60 years old, your projected balance of $1,392,972.24 can sustain your lifestyle until you're 100 years old — withdrawing inflation-adjusted expenses each month while your remaining balance continues to compound.