DeluxeCalc
Free, fast, accurate calculators for financial planning, health tracking, math, and everyday use.
- No account required
- Shareable result links
- PDF & CSV export
Compound interest, worked example
$302,370
$10,000 start, $500/mo at 7% for 20 years
- Contributed
- $130,000
- Interest earned
- $172,370
All 41 calculators
Financial Calculators
- Mortgage CalculatorEstimate monthly payments and see your full amortization schedule.
- Closing Cost CalculatorItemize home closing costs and see the total cash you need to close.
- Compound Interest CalculatorProject investment growth with regular contributions over time.
- Retirement CalculatorPlan your retirement savings and forecast your nest egg.
- Auto Loan CalculatorCalculate car loan payments including taxes and trade-in value.
- Salary / Paycheck CalculatorBreak down your paycheck with federal, state, and FICA taxes.
- Debt Payoff CalculatorWhich debt payoff strategy saves more?
- Emergency Fund CalculatorHow much savings do I actually need?
- Inflation Purchasing Power CalculatorWhat will today's money be worth later?
- Solar Payback CalculatorWhen will solar pay for itself?
Fitness & Health Calculators
- TDEE CalculatorCalculate your Total Daily Energy Expenditure and calorie targets for cutting, maintaining, or bulking.
- BMI CalculatorFind your Body Mass Index and see which weight category you fall into.
- Body Fat CalculatorEstimate your body fat percentage using the accurate US Navy tape measurement method.
- Macro CalculatorGet your daily protein, carb, and fat targets based on your TDEE and goal.
- Pregnancy Due DateCalculate your due date, current week, and trimester from your last menstrual period.
Math & Scientific Calculators
- Statistics CalculatorCalculate mean, median, mode, standard deviation, variance, and more from any dataset.
- Scientific CalculatorEvaluate expressions with sin, cos, tan, logs, powers, roots, and factorials in degrees or radians.
- Percentage CalculatorFind what percent X is of Y, calculate percentage change, or find X% of any number.
- Fractions CalculatorAdd, subtract, multiply, and divide fractions with fully simplified results and mixed numbers.
- Quadratic Equation SolverSolve ax² + bx + c = 0 instantly — get real roots, discriminant, and step-by-step display.
Comparison Calculators
- Pay Off Debt vs Invest CalculatorShould I invest or eliminate debt?
- Debt Consolidation CalculatorWill combining my debts save money?
- Balance Transfer vs Personal Loan CalculatorWhich debt restructuring option is cheaper?
- Minimum Payment vs Fixed Payment CalculatorHow much interest am I wasting?
- Personal Loan vs Credit Card CalculatorWhich borrowing option costs less?
- Fixed vs Variable Interest CalculatorWhich interest structure is better?
- Refinance vs Keep Existing LoanIs refinancing worthwhile?
- Pay Cash vs Use 0% FinancingIs interest-free financing really free?
- Monthly vs Biweekly PaymentsWhich payment frequency reduces interest?
- Mortgage Prepayment vs InvestingWhere should extra money go?
- Rent vs Buy CalculatorIs buying a house better than renting?
- Buy vs Continue Renting & InvestingCan renting and investing outperform ownership?
- House vs Condo CalculatorWhich property makes more financial sense?
- Buy vs Lease CarWhich costs less over 3–5 years?
- Electric vs Gas CarWhich vehicle is cheaper overall?
- 3-Year vs 5-Year Car LoanWhich loan term is cheaper?
- Lump Sum vs Monthly InvestingWhich investment contribution strategy wins?
- One Income vs Two Income HouseholdWhat happens if one partner stops working?
Every calculator works the same way
1. Enter your numbers
Results update as you type. With the mortgage defaults, the monthly principal and interest is $2,129.
2. Share the link
Every input is saved in the page address, so you can bookmark a result or send it to someone.
/financial/mortgage?price=400000&down=80000&term=30&rate=73. Export the result
Download a PDF to keep, or a CSV to open in your spreadsheet. Nothing needs an account.