Financial
Investment Calculator
Project growth of your investments over time with regular contributions.
Future value
$343,778
Total contributed$130,000
Total gain$213,778
How it works
FV = P(1+r)ⁿ + PMT · ((1+r)ⁿ − 1)/r
Combines a lump-sum future value with the future value of a series of monthly contributions, assuming a constant compounding return.
Frequently asked
What return should I assume?
Historical U.S. stock returns average ~7–10% nominal. For conservative planning, use 5–7%.
Are taxes accounted for?
No — results are pre-tax. In a Roth or tax-advantaged account, gains are effectively tax-free.
Related calculators
Mortgage Calculator
Estimate monthly mortgage payments, total interest, and amortization.
Loan Calculator
Compute monthly payments for any fixed-rate loan.
Auto Loan Calculator
Monthly payments for a car loan including tax, trade-in, and down payment.
Savings Calculator
See how your savings grow with contributions and interest.