Free tools
Free, private calculators.
The same plain, no-nonsense thinking behind our apps, in a set of small calculators you can use right now. Everything runs in your browser. Nothing is saved, nothing is sent, no account needed.
Investing
Calm, long-term money math for buy and hold investors.
Dividend Snowball Watch reinvested dividends compound over 5 to 40 years. Dividend FI Number How big a portfolio you need for dividends to cover your bills. Coast FIRE Find out if you can stop contributing and still retire on time. Asset Location Helper Which account should hold each fund, taxable, Roth, IRA, 401(k), HSA. Rebalance Calculator See your drift from target and the trades to fix it.
Subscriptions
See what those recurring charges really cost.
Work and pay
Plain-language pay math. General information, not legal advice.
Everyday
Small, useful calculators for the rest of life.