Investment Calculator
See how your investments grow with regular contributions and inflation adjustment.
Written by FinCalc Tools Editorial Team, Software engineers & finance enthusiasts · Review process: Reviewed quarterly by domain experts
Last updated: 2026-06-12|Next review: 2026-09-12
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Nominal final value
$345,741.64
Real value (inflation-adjusted)
$191,428.76
Total contributions
$130,000.00
Total interest
$215,741.64
Our methodology
All calculations follow industry-standard financial formulas. The compound interest formula A = P(1 + r/n)^(nt) is from the SEC's investor.gov. Loan amortization uses the standard formula M = P × [r(1+r)^n] / [(1+r)^n − 1]. Retirement projections use the 4% safe withdrawal rule. Our code is open source and unit-tested.
References
Sources used to build this calculator:
- · SEC — Introduction to Investing: investor.gov
- · IRS — Publication 550 (Investment Income and Expenses): irs.gov