Savings Calculator
Future Value
153,234.95
Total Contributions: 130,000
Related calculators
Savings Calculator: Lump Sum Plus Monthly Deposits
Project how an initial balance and recurring deposits grow with compound interest. Fields are Principal (starting amount), Monthly savings, Interest rate (% per year), and Years. Outputs are Future value and Total contributions (principal plus all monthly deposits, without interest). Useful for emergency funds or long-term saving. The page assumes steady deposits and a fixed rate.
How to use
Each month the balance earns annual rate divided by 12, then your monthly deposit is added. Future value combines growth on the opening principal and on the payment stream. If the rate is 0%, future value equals principal plus monthly times months. Inflation, tax on interest, and skipped months are not modeled.
Example
Start with 10,000, add 1,000 per month for 10 years at 3% annual interest. Future value is about 153,200 while you paid in 130,000, so roughly 23,200 comes from interest. Raising the rate to 5% or adding five years changes the gap a lot. Use the sliders to see sensitivity.
Tips
Market investments do not grow at a flat rate. For a target amount instead of a projection, try the savings goal calculator. Pair with compound interest when you compare a one-off investment with regular saving.