Bitcoin dollar-cost average strategies
A chart that replays fixed-dollar Bitcoin purchases over a chosen span and places them next to dollars, gold, and stock indexes.
Look Into Bitcoin · found 2026-10-14 · Source
DCA Playbook · Calculators
Calculators
Run your number on the playbook home.
25 calculators in the playbook. The full directory has every category.
Entries checked October 2026. Summaries are RogLabs's own one-line notes, not quotes from the pages. A link is not a recommendation. Nothing here is financial, investment, or tax advice, and nothing here promises a return.
25 shown
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Bitcoin return calculator
DQYDJ's calculator for the change in a bitcoin holding between two dates, including an inflation adjustment.
DQYDJ · found 2026-10-21 · Source
Bitcoin vs stocks DCA calculator
A calculator that compares a repeating Bitcoin purchase with a repeating stock purchase over a chosen window.
Bitcoin vs Stocks · found 2026-10-14 · Source
Calculating personal returns
The Bogleheads wiki page on computing your own return when contributions arrive on many dates.
Bogleheads Wiki · found 2026-10-14 · Source
cFIREsim
A retirement calculator that runs a portfolio, including ongoing savings, through past market sequences.
cFIREsim · found 2026-10-21 · Source
Compound interest calculator
The SEC's compound-interest calculator for projecting a repeating contribution under assumptions you type in.
Investor.gov · found 2026-10-14 · Source
Compound interest calculator (Calculator.net)
Calculator.net's compound-interest calculator.
Calculator.net · found 2026-10-14 · Source
Curvo backtest for European index investors
Curvo's free backtester for portfolios built from index ETFs listed in Europe.
Curvo · found 2026-10-21 · Source
dcaBTC
A public site for looking at a historical Bitcoin purchase schedule.
dcaBTC · found 2026-10-14 · Source
FI Calc
A browser calculator that projects how long a portfolio lasts from savings, spending, and allocation inputs.
FI Calc · found 2026-10-28 · Source
Fidelity retirement score calculator
Fidelity's retirement calculator, which turns a savings rate and an account mix into a planning picture.
Fidelity · found 2026-10-14 · Source
FIRE calculator (Engaging Data)
An interactive calculator that estimates an early-retirement date from savings, spending, and an assumed return.
Engaging Data · found 2026-10-28 · Source
FIRECalc
A retirement calculator that runs a spending plan against past market histories.
FIRECalc · found 2026-10-28 · Source
Future value calculator
Calculator.net's future-value calculator for a present amount and a series of payments.
Calculator.net · found 2026-10-14 · Source
Investment calculator
Calculator.net's investment calculator for a starting amount plus a repeating contribution.
Calculator.net · found 2026-10-14 · Source
iShares investment growth calculator
iShares' calculator for an initial amount plus a monthly contribution over a chosen number of years and an assumed rate.
iShares · found 2026-10-14 · Source
NerdWallet investment calculator
NerdWallet's investment calculator for a contribution you set and a rate you assume.
NerdWallet · found 2026-10-14 · Source
Portfolio Visualizer asset class backtest
A Portfolio Visualizer tool that backtests a chosen mix of asset classes over a historical period.
Portfolio Visualizer · found 2026-10-28 · Source
Portfolio Visualizer backtest
Portfolio Visualizer's backtest tool for a fund mix and a contribution schedule you define.
Portfolio Visualizer · found 2026-10-14 · Source
Portfolio Visualizer Monte Carlo simulation
Portfolio Visualizer's tool for a range of hypothetical portfolio paths drawn from historical return inputs.
Portfolio Visualizer · found 2026-10-21 · Source
S&P 500 periodic reinvestment calculator
A calculator that replays a repeating investment in the S&P 500 and can include dividends, fees, taxes, and inflation.
DQYDJ · found 2026-10-14 · Source
S&P 500 return calculator, with dividend reinvestment
DQYDJ's calculator for how the S&P 500 changed between two dates when dividends were reinvested.
DQYDJ · found 2026-10-21 · Source
Savings goal calculator
The SEC's calculator for a savings target and the periodic amount that reaches it under your assumptions.
Investor.gov · found 2026-10-14 · Source
testfolio portfolio backtester
A browser tool for backtesting ETF mixes and other asset-allocation portfolios.
testfolio · found 2026-10-21 · Source
Vanguard retirement income calculator
Vanguard's calculator for retirement income from the savings and mix you enter.
Vanguard · found 2026-10-14 · Source
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