Browse tools

Calculators, AI research tools and ready-made answer tables. All free, all running in your browser.

Compound InterestCalculator

Watch a starting balance plus monthly contributions grow, year by year.

Dividend IncomeCalculator

Project passive income with DRIP, dividend growth and taxes.

FIRE / Early RetirementCalculator

Find your FIRE number and the age you could reach it.

CAGR / Stock ReturnCalculator

The true annualized return of any investment, dividends included.

Position SizeCalculator

How many shares to buy for a fixed risk per trade.

Inflation-Adjusted ReturnCalculator

What your future balance is worth in today’s dollars.

AI Research PromptsAI tool

Analyst-grade stock research prompts for ChatGPT, Claude and Perplexity.

Using AI for Stock ResearchGuide

A five-step workflow that gets the speed without the hallucinations.

Best AI Investing ToolsGuide

What each AI investing tool is actually good for.

$100/mo in dividendsDividend target

Portfolio needed for $100 a month at 2–8% yields, and how long it takes.

$500/mo in dividendsDividend target

Portfolio needed for $500 a month at 2–8% yields, and how long it takes.

$1,000/mo in dividendsDividend target

Portfolio needed for $1,000 a month at 2–8% yields, and how long it takes.

$2,000/mo in dividendsDividend target

Portfolio needed for $2,000 a month at 2–8% yields, and how long it takes.

$3,000/mo in dividendsDividend target

Portfolio needed for $3,000 a month at 2–8% yields, and how long it takes.

$5,000/mo in dividendsDividend target

Portfolio needed for $5,000 a month at 2–8% yields, and how long it takes.

$10,000/mo in dividendsDividend target

Portfolio needed for $10,000 a month at 2–8% yields, and how long it takes.

Invest $100 a monthGrowth table

What $100/month becomes over 5–40 years at 6%, 8% and 10%.

Invest $200 a monthGrowth table

What $200/month becomes over 5–40 years at 6%, 8% and 10%.

Invest $300 a monthGrowth table

What $300/month becomes over 5–40 years at 6%, 8% and 10%.

Invest $500 a monthGrowth table

What $500/month becomes over 5–40 years at 6%, 8% and 10%.

Invest $1,000 a monthGrowth table

What $1,000/month becomes over 5–40 years at 6%, 8% and 10%.

Invest $2,000 a monthGrowth table

What $2,000/month becomes over 5–40 years at 6%, 8% and 10%.