Future Value Calculator
Adjust the inputs below. Results update as you type.
How it works
Lump sum: FV = PV × (1+r)^n. Annuity: FV = PMT × [(1+r)^n − 1] / r. Real (inflation-adjusted) FV = nominal FV / (1+inflation)^n. Compounding frequency matters: daily compounding at 5% yields slightly more than annual compounding. Time is the most powerful lever—doubling the period roughly squares the multiplier at the same rate.
Input guidance
- Use realistic rates from lender or provider quotes instead of headline averages.
- Model conservative, baseline, and optimistic scenarios before deciding.
- Include recurring real-world costs (fees, taxes, insurance, maintenance) where relevant.
The formula
Future value grows a present amount forward: FV = PV · (1 + r)^n. Add regular deposits with PMT·(((1+r)^n − 1)/r).
Worked example
$5,000 invested today at 7% for 10 years grows to 5,000 × 1.07^10 ≈ $9,836.
More examples to test
- Conservative case: use a higher interest rate and lower growth assumptions to stress-test affordability.
- Optimistic case: use a lower rate with stable income assumptions to compare upside potential.
How to interpret results
Treat this as a planning model, not a final approval tool. Compare at least two scenarios and focus on total-cost and cash-flow trade-offs.
When this can be inaccurate
Results can diverge due to fees, changing rates, tax rules, lender policies, and behavior changes that simplified models cannot fully capture.
Change history
- July 2026: Quality-reviewed for publication with formula checks and explanatory copy updates.
Site-wide corrections also appear on the corrections log.
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Frequently asked questions
What does future value show?+
What a sum invested today will be worth later at a given rate — the core of savings and investment projections.
How do contributions change it?+
Adding regular deposits compounds alongside the lump sum, often making the contributions the larger part of the final balance over long periods.
Is the result inflation-adjusted?+
No. It is in nominal future dollars. Subtract expected inflation from the rate to estimate future buying power.
How should I use this result?+
Treat it as a planning estimate. Compare at least two realistic scenarios, then confirm with statements, quotes, or a qualified professional before acting.
How often should I refresh assumptions?+
Refresh whenever rates, income, costs, or policy limits change materially, and before making irreversible commitments.