All 15 free calculators
Pick a calculator below. Every one of them is free, runs right in your browser, and shows you the plain-English math behind the number: not just a black box. Looking for an article instead? Visit the blog.
No signup required
Works on your phone
2026 tax numbers
Home & big purchases
HM
Mortgage Payment CalculatorPrice, down payment, rate, term, taxes, insurance, PMI, HOA
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LN
Loan Payment CalculatorAny fixed-rate loan: payment, interest, amortization table
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CAR
Car Loan CalculatorPrice, down payment, trade-in, sales tax, APR, term
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RVB
Rent vs. Buy CalculatorNet cost of renting vs. buying over the years you plan to stay
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HOW
How Much House Can I Afford?Max price using the 28% housing / 36% total debt rules
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Debt & payoff
CC
Credit Card Payoff CalculatorMinimum payment trap vs. paying more: months and interest
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SL
Student Loan Payoff CalculatorMonths and interest at your payment, plus 5/10-year plans
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DSA
Debt Snowball vs. Avalanche CalculatorUp to 5 debts: payoff order, months, and total interest for each strategy
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Saving & investing
SV
Savings Plan CalculatorTurn any goal into a weekly or monthly number, plus a printable tracker
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CI
Compound Interest CalculatorHow much to save monthly to hit a target by a certain age
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401K
401(k) Growth CalculatorContribution %, employer match, raises, returns, and the +1% effect
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EF
Emergency Fund Calculator3 and 6-month targets from your real monthly expenses
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Paycheck & career
PC
Paycheck Take-Home Calculator (2026)Salary to real take-home: federal tax, FICA, 401(k), state tax
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H2S
Hourly to Salary CalculatorHourly ↔ yearly/monthly/biweekly/weekly, paid weeks included
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JOB
Job Offer Compare CalculatorTwo offers' real yearly value: 401(k) match, health cost, commute, bonus
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