EVERY INVESTING DECISION · WITH THE MATH SHOWN

Investment Calculators

Every money decision about growing wealth. Compound interest, DCA, crypto profits, ETF fees, dividend income, portfolio rebalancing. The math behind compound growth.

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Updated May 19, 2026 · SEC · IRS Pub 550
  • Compound Interest Calculator

    Project returns with compound interest calculator.

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  • Dollar Cost Averaging Calculator

    Project returns with dollar cost averaging calculator.

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Compound returns do 80% of the lifetime work. $500/mo invested from age 25 at a 7% real return grows to ~$1.2M by 65; starting at 35 cuts that to $568k. ETF expense ratios matter. A 0.03% index fund vs a 0.90% active fund costs you ~18% of your ending balance over 40 years. All historical returns cited from FRED; crypto from CoinGecko weighted exchange averages.

  • Crypto DCA Calculator

    Project returns with crypto dca calculator.

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  • Crypto Profit/Loss Calculator

    Project returns with crypto profit/loss calculator.

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  • Crypto Tax Calculator

    Project returns with crypto tax calculator.

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  • Crypto Tax Liability Calculator

    Project returns with crypto tax liability calculator.

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  • Bitcoin Halving Impact Calculator

    Project returns with bitcoin halving impact calculator.

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  • Crypto Mining Profitability Calculator

    Project returns with crypto mining profitability calculator.

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  • HODL vs DCA Calculator

    Project returns with hodl vs dca calculator.

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  • Staking Rewards Calculator

    Project returns with staking rewards calculator.

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  • NFT Profit Calculator

    Project returns with nft profit calculator.

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  • Crypto Portfolio Tracker

    Project returns with crypto portfolio tracker.

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  • Compound Interest Calculator

    Project returns with compound interest calculator.

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  • Dollar Cost Averaging Calculator

    Project returns with dollar cost averaging calculator.

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  • Portfolio Rebalancing Calculator

    Project returns with portfolio rebalancing calculator.

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  • Index vs Active Fund Calculator

    Project returns with index vs active fund calculator.

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  • ETF Fee Impact Calculator

    Project returns with etf fee impact calculator.

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  • Dividend Income Calculator

    Project returns with dividend income calculator.

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  • Bond Yield Calculator

    Project returns with bond yield calculator.

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  • Interest Rate Calculator

    Project returns with interest rate calculator.

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  • Opportunity Cost Calculator

    Project returns with opportunity cost calculator.

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  • Stock Profit Calculator

    Project returns with stock profit calculator.

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  • High-Yield Savings Calculator

    Project returns with high-yield savings calculator.

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Written and maintained by Jere Salmisto, Founder, CalcFi. Updated May 19, 2026.

Formulas and data sourced from SEC Investor Bulletins, IRS Publication 550 (investment income), and historical return data from FRED + CoinGecko. Methodology at /about/editorial. Published by CalcFi Editorial.