Enter what you start with, what you add each month, the expected yearly return and the number of years to see how compound growth adds up.
Without monthly deposits: future value = P × (1 + r)^t, where P is the starting amount, r the yearly return and t the years. Monthly deposits are added and grown the same way, month by month.
1,000 at 5% a year for 10 years: 1,000 × 1.05^10 ≈ 1,628.89, so growth earns about 628.89.