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High-usefulness tools with the strongest decision payoff.
Take-Home Pay Calculator
Turn a salary offer into estimated monthly take-home.
Credit Card Payoff Calculator
Find your payoff date—and what extra payments save.
1099 vs W-2 Tax Calculator
Compare contractor vs employee net before you decide.
Salary to Hourly Calculator
Translate annual pay into an hourly rate for your schedule.
Compound Interest Calculator
See how contributions and time change future value.
Self-Employment Tax Calculator
Estimate SE tax from net profit for freelancers.