Hourly to Annual Salary Calculator
Hourly rate × hours per week × 52 (simple, no tax).
Use CalculatorTip Calculator
Bill amount, tip percent, and party size—tip, total with tip, and per person.
Use CalculatorTrip Fuel Cost Calculator
Miles, MPG, and price per gallon—gallons used and trip fuel cost (US units).
Use CalculatorMortgage Payment Calculator
Loan amount, annual rate, and years—estimated monthly principal & interest (excludes tax/insurance).
Use CalculatorCompound Interest Calculator
Principal, annual rate, years, and compounding periods per year—future value.
Use CalculatorPercentage Change Calculator
Old value vs new value—absolute change and relative percent change.
Use CalculatorMarkup & Margin Calculator
Cost plus markup % on cost—selling price and margin % of selling price.
Use CalculatorSimple Interest Calculator
Principal, annual rate %, and years—interest and total repayment.
Use CalculatorBreak-Even Calculator
Fixed costs, variable cost per unit, and price—units needed to break even.
Use CalculatorRent Affordability Calculator
Monthly income and max rent % of income—rule-of-thumb rent cap.
Use CalculatorDecimal Odds to Implied Probability
Enter decimal odds (e.g. 2.50)—naïve implied win % (no vig removed).
Use CalculatorCredit Card Payoff Estimator
Balance, APR, and fixed monthly payment—months to payoff and total interest (simplified).
Use CalculatorCAGR Calculator
Starting value, ending value, and years—compound annual growth rate %.
Use CalculatorRetirement Savings Calculator
Monthly contribution, nominal annual return %, and years—future value and total contributed.
Use CalculatorInflation Calculator
Present value, annual inflation %, and years—future nominal value and multiplier.
Use CalculatorCar Loan Calculator
Principal, APR %, and term in months—monthly payment and total interest (amortizing).
Use CalculatorMax Loan from Payment
Affordable monthly payment, APR %, and years—estimate maximum loan principal.
Use CalculatorUnit Price Calculator
Total price and quantity—cost per unit; optional second product comparison.
Use CalculatorProfit Margin Calculator
Revenue and cost—gross profit dollars and profit margin % on revenue.
Use CalculatorSavings Goal (Months)
Target balance, monthly deposit, and nominal annual rate—months to reach goal (simplified).
Use CalculatorPayback Period Calculator
Upfront cost and constant yearly benefit—simple payback time in years.
Use CalculatorHourly to Monthly Pay
Hourly rate × hours per week × (52÷12)—rough gross monthly (before tax).
Use CalculatorStacked Discounts
Two successive percent-off steps—final price and equivalent single discount.
Use CalculatorInterest-Only Loan Payment
Principal and APR—monthly interest-only payment (no amortization).
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