Financial calculators
Free calculators with clear formulas
Use instant calculators for saving, pay, inflation, income, and loan decisions. Each result includes the math and its limits.
Available calculators
Every calculator works in your browser. Your entries are not sent to a calculation server or saved in a site account.
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Showing all 21 calculators
Saving and investing
Plan long-term growth, future goals, down payments, and income from savings.
Compound interest calculator
Project investment growth with a starting balance, monthly deposits, and adjustable compounding.
Open Compound interest calculatorSavings goal calculator
Find the monthly savings needed by a target date, with and without investment growth.
Open Savings goal calculatorDown payment savings calculator
Estimate the time needed to reach a home down payment with savings and projected growth.
Open Down payment savings calculatorLive off interest calculator
Estimate the nest egg needed for a target annual income and compare 3%, 4%, and 5% rates.
Open Live off interest calculatorFuture inflation calculator
Estimate future purchasing power or calculate how much money you may need after inflation.
Open Future inflation calculatorIncome and work
Compare salary, hourly pay, raises, and simplified after-tax estimates.
Pay raise calculator
Convert a raise into annual and per-paycheck changes, with a rough take-home estimate.
Open Pay raise calculatorHourly to salary calculator
Convert hourly pay to annual, monthly, biweekly, and weekly gross income in either direction.
Open Hourly to salary calculatorSalary to hourly after taxes
Estimate gross and take-home hourly pay using simplified federal and payroll tax assumptions.
Open Salary to hourly after taxesLoans and debt
Compare payoff strategies, payment timing, and fixed-rate amortization.
Loan Early Payoff Calculator
See how extra monthly payments may change your payoff date and total interest.
Open Loan Early Payoff CalculatorAccelerated Loan Payoff Calculator
Estimate how a higher monthly payment may shorten a loan and reduce interest.
Open Accelerated Loan Payoff CalculatorExtra Payment Loan Calculator
Compare the effect of an extra monthly amount, a one-time payment, or both.
Open Extra Payment Loan CalculatorPersonal Loan Payoff Calculator
Estimate personal-loan payoff timing, total interest, and an optional faster plan.
Open Personal Loan Payoff CalculatorAuto Loan Payoff Calculator
Estimate payoff time and interest for an existing auto loan with optional extra payments.
Open Auto Loan Payoff CalculatorBiweekly Loan Payment Calculator
Compare a standard monthly schedule with estimated payments every two weeks.
Open Biweekly Loan Payment CalculatorLoan Amortization Calculator
Estimate a fixed-rate payment and review a compact principal-and-interest schedule.
Open Loan Amortization CalculatorEveryday money
Understand recurring costs, shared bills, rent, habits, and debt payoff.
Subscription cost calculator
Add recurring subscriptions and see monthly, annual, and hypothetical invested-alternative costs.
Open Subscription cost calculatorCost of habit calculator
Compare the long-term cost of a regular habit with a hypothetical invested alternative.
Open Cost of habit calculatorUneven and equal tip calculator
Calculate a tip, split a bill equally, or assign each person's items and divide the tip proportionally.
Open Uneven and equal tip calculatorProrated rent calculator
Calculate partial-month rent using exact calendar days or a standard 30-day method.
Open Prorated rent calculatorBusiness and general math
Answer common percentage and break-even questions with clear formulas.