The simplest investing strategy that actually works

Buy a little.
Buy often.
Outrun the market.

Free, open calculators for dollar-cost averaging into crypto, stocks, and commodities. Backtest 15 years of history, then project the next 30.

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Bitcoin · DCA backtest
BacktestForecast
Contribution
$100
weekly
Started
Jan 2017
·
Through
Jun 2026
data through
Portfolio value
$395,445
+703.7%on $49,200 invested
Portfolio value Total contributed
Assets supported
18
crypto · stocks · commodities
Historical data
15yr
since 2010
Frequencies
4
daily → monthly
Calculator latency
<100
milliseconds, in-browser
· 01 · Pick an asset

Three categories. One calculator.

All assets
7 assets
Since 2014

Crypto

BTC
BTC
Bitcoin
Daily
since 2014
ETH
ETH
Ethereum
Daily
since 2017
SOL
SOL
Solana
Daily
since 2020
BNB
BNB
BNB
Daily
since 2017
Open crypto calculator
9 assets
Since 1980

Stocks

AAP
AAPL
Apple
Daily
since 1980
NVD
NVDA
NVIDIA
Daily
since 1999
MSF
MSFT
Microsoft
Daily
since 1986
SPY
SPY
S&P 500
Daily
since 1993
Open stocks calculator
2 assets
Since 2000

Commodities

Gol
Gold
Gold (oz)
Daily
since 2000
Sil
Silver
Silver
Daily
since 2000
+ more on calculator page
Open commodities calculator
· 02 · The Method

Pick an amount. Pick a frequency. Don't stop.

That's the whole strategy. Dollar-cost averaging spreads your buy-in across time so you stop trying to time the market — and start owning it.

Read the full method
01

Choose an amount you can ignore

Whatever fits your budget. Once set, treat it like rent — it leaves your account whether you feel like investing or not.

02

Pick a fixed cadence

Weekly is the sweet spot. Bi-weekly works on payday schedules. Monthly is the bare minimum.

03

Run it for a decade, not a year

DCA is a 5–30 year strategy. Anything shorter is just trading with extra steps.

· 03 · Tools

Beyond backtesting.

All calculators

Lump Sum vs DCA

Head-to-head comparison with real historical data

Open

Compound Interest

Visualize the power of compounding over decades

Open

FIRE Calculator

Find your financial independence number and timeline

Open

Savings Goal

How much to save per period to hit your target

Open

BTC Halving Cycles

Overlay Bitcoin halvings on DCA performance

Open

Portfolio Builder

Multi-asset DCA with custom allocations

Open

Cost Basis Tracker

Track lots, gains, and average purchase price

Open
· 04 · Reading

Long-form writing on DCA.

All posts
AVG COST
Strategy· 5 min

What Is Dollar Cost Averaging? A Complete Beginner's Guide

Learn how dollar cost averaging works, why it reduces risk, and how to use it for crypto, stocks, and ETFs. Includes a Bitcoin DCA backtest example.

Read post
Strategy· 6 min

DCA vs Lump Sum: What 30 Years of Data Tells Us

A data-driven comparison of dollar cost averaging versus lump sum investing across stocks and crypto, including when DCA is the smarter choice.

Read post
Crypto· 6 min

How to DCA Into Bitcoin Without Overthinking It

A practical, step-by-step guide to setting up a Bitcoin DCA strategy. Pick a frequency, pick an amount, automate it, and stop worrying.

Read post
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