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United States · your money, counted up

Money math, solved.

Paycheck, mortgage, taxes, retirement. Accurate US calculators — plus the viral ones you'll want to share.

See S&P 500 returns or run the numbers →
S&P 500 · $1,000 since 2010VIRAL

The power of compounding

$4,600
$1,000 in the S&P 500 in 2010, with dividends reinvested.
S&P 500Cash under the mattress
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The ones that go viral

Comparisons people love to share

See the result, screenshot it, send it. Returns, inflation, where you rank.

S&P 500 returns

What your money would be worth today.

since 1990

Bitcoin returns

The classic FOMO machine, in dollars.

FOMO

Crypto returns

ETH, SOL, XRP, DOGE and more — pick a coin.

7 coins

Income percentile

See where your income ranks in the US.

percentile

Inflation

How much your dollars lost to inflation.

since 1970

Cost of a habit

What a daily habit really costs you.

ouch
And the essentials

The ones you actually need

The boring-but-important stuff: paycheck, mortgage, taxes, retirement. Fast and clear.

Paycheck
Your take-home pay after federal tax and FICA
TOP
Mortgage
Monthly payment, interest and amortization
TOP
Income tax
Estimate your 2026 federal income tax
TOP
Compound interest
Watch your savings grow over time
401(k)
Project your retirement balance
Loan
Monthly payment for any fixed-rate loan