Compound interest calculator with regular contributions
Enter a starting amount, a regular contribution and the annual return. The calculator compounds at the frequency you choose.
Added at the end of each period. Use 0 for none.
%
Future value
100,133.64
Total paid in
70,000.00
Interest earned
30,133.64
How it's calculated
FV = PV × (1 + r)ⁿ + PMT × [(1 + r)ⁿ − 1] ÷ r
- r
- rate per period
- PMT
- contribution per period (end of period)
Assumptions
- Constant rate; contributions at the end of each period, compounding at the same frequency.
Limitations
- Ignores taxes, fees and inflation. Actual investment returns vary and are not guaranteed.
For education and planning. Results are estimates, not financial advice.