Future Value Calculator

Estimate what an initial investment is worth later — plus optional periodic contributions — from an annual interest rate, compounding frequency, and number of years. Everything runs in the browser.

  • PV + contributions
  • Compound interest
  • Stays on your device
When deposited

End of period is an ordinary annuity (the usual default). Start of period is an annuity due — each deposit compounds one extra interval.

Daily uses 365 periods. When contribution frequency differs from compounding, deposits use the effective rate per contribution period.

Numbers stay on this device. Nothing is uploaded, and there is no account.

Year-by-year schedule

YearBeginning balanceContributionsInterestEnding balance
1$10,000.00$2,400.00$801.42$13,201.42
2$13,201.42$2,400.00$1,032.85$16,634.27
3$16,634.27$2,400.00$1,281.01$20,315.28
4$20,315.28$2,400.00$1,547.11$24,262.39
5$24,262.39$2,400.00$1,832.45$28,494.83
6$28,494.83$2,400.00$2,138.41$33,033.24
7$33,033.24$2,400.00$2,466.49$37,899.74
8$37,899.74$2,400.00$2,818.29$43,118.03
9$43,118.03$2,400.00$3,195.52$48,713.55
10$48,713.55$2,400.00$3,600.02$54,713.58

A future value calculator answers a time-value-of-money question: if you invest a known amount today, and maybe add a regular contribution, what is that money worth after a stated number of years at a given annual rate? Enter present value, an optional deposit, how often you contribute, the rate, compounding, and years.

The lump-sum formula is FV = PV × (1 + r/n)^(n × t). Optional end-of-period deposits add PMT × [((1 + i)^N − 1) / i]. Example: $10,000 at 5% compounded annually for one year is $10,500. The same 5% compounded monthly is about $10,511.62. $10,000 plus $200 a month at 7% monthly for 10 years is about $54,700.

Results are educational estimates, not financial advice. Posted rates, fees, and taxes can differ. Everything runs in your browser. Totals never leave the device, and there is no account.

Browse more calculators on the Finance hub, or open the CD rate calculator, 403b calculator, discount calculator, stock average calculator, and emergency fund calculator. For campaign URLs, use the UTM builder.

How to use the future value calculator

  1. Enter the initial investment (present value). Use 0 if you will only contribute over time.
  2. Optionally enter a periodic contribution and how often you add it (monthly is common).
  3. Choose end-of-period deposits (ordinary annuity) or start-of-period (annuity due).
  4. Enter the annual interest rate % and compounding frequency (annual, monthly, or daily).
  5. Enter the number of years, then read future value, total contributions, interest, and the schedule.

Frequently asked questions

How does a future value calculator work?

A future value calculator compounds an initial investment (present value) and optional periodic contributions at an annual interest rate. You choose compounding frequency — annual, monthly, daily, or similar — and a number of years. The page returns future value, total money you put in, interest earned, and a year-by-year schedule. Everything runs in the browser.

What is the future value formula?

For a lump sum, FV = PV × (1 + r/n)^(n × t), where r is the annual rate, n is compounding periods per year, and t is years. Optional deposits use the ordinary-annuity formula FV = PMT × [((1 + i)^N − 1) / i], where i is the rate per contribution period and N is the number of deposits. Deposits at the start of each period (annuity due) multiply that annuity result by (1 + i).

What is compound interest?

Compound interest means you earn interest on both the original principal and interest already credited. Monthly compounding of 5% on $10,000 for one year is about $10,511.62 — a little more than the $10,500 from annual compounding of the same 5%. Daily compounding is slightly higher still. This future value calculator applies that compounding to both the starting amount and later contributions.

How do periodic contributions change future value?

Each contribution is added on its own schedule — monthly, quarterly, semiannual, or annual — then compounds for the remaining time. $10,000 plus $200 a month at 7% compounded monthly for 10 years is about $54,700, versus about $20,100 for the $10,000 lump sum alone. End-of-period deposits are the usual default; start-of-period deposits earn one extra interval of interest.

What is the difference between annual, monthly, and daily compounding?

The same nominal annual rate produces a slightly higher future value when it compounds more often. $10,000 at 5% for one year is $10,500 annually, about $10,511.62 monthly, and about $10,512.67 daily (365 periods). If contribution frequency differs from compounding, this calculator converts the annual rate to an effective rate per contribution period.

How is this different from the CD rate calculator?

This future value calculator is for a present value, optional ongoing contributions, a nominal annual rate, compounding frequency, and a term in years. The CD rate calculator is for a single certificate-of-deposit deposit with APY or interest rate and a term in months or years. There is no second URL for FV aliases — use this page for future value.

Does this future value calculator upload my numbers?

No. Initial investment, contributions, rate, compounding, and years are calculated in your browser. Nothing is sent to a server or stored on our side.

Is this future value calculator financial advice?

No. Results are an educational estimate of compound interest from the numbers you enter. Posted rates, day-count conventions, fees, taxes, and sequence of returns can differ. Check the account terms or a qualified advisor before you invest.