About CalcWealth
Free, accurate finance calculators built by an engineer who got tired of paywalled tools and cluttered spreadsheets.
Our Mission
Personal finance decisions — how much to save, when to invest, how long until you reach your goal — should be based on real numbers, not guesswork. CalcWealth exists to give every investor, beginner or experienced, instant access to the same calculations that previously required expensive software or a financial advisor.
Every calculator on this site is free, works without an account, and shows you the full year-by-year breakdown so you can understand whythe numbers work the way they do — not just what the final answer is.
Who Built This
CalcWealth was built by a DevOps engineer turned finance-tool builder. After years of working with large-scale infrastructure — Docker, CI/CD, cloud systems — the same principle that applies to good software also applies to good financial tools: complexity should be hidden from the user, not thrown at them.
The goal was simple: build the compound interest calculator that I actually wanted to use myself — fast, mobile-friendly, with a clear chart and no sign-up wall. Everything else grew from there.
What We Cover
- Compound interest calculations with monthly contributions and variable compounding frequency
- Investment return calculators (CAGR, ROI)
- Savings goal planning — how much to save per month to reach a target
- Inflation impact on purchasing power over time
- Retirement projections (401k, IRA, Roth IRA scenarios)
Our Commitment to Accuracy
Every formula is implemented from first principles and cross-verified against multiple financial textbooks and regulatory sources. The compound interest formula used — A = P(1 + r/n)^(nt) — is the industry-standard formula used by banks, the US Treasury, and financial planning software worldwide.
We review all content quarterly. If you spot an error, please contact us and we will correct it within 48 hours. See our Editorial Policy for full details.
Important Disclaimer
CalcWealth provides educational tools and information only. Nothing on this site constitutes financial, investment, tax, or legal advice. Past investment performance does not guarantee future results. Always consult a qualified financial advisor before making investment decisions.