Day of the Week Calculator
What day any date falls on, past or future.
Calculators
Everyday maths, money and measurements, worked out for you.
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Auto Lease Calculator
Lease payment from cap cost, residual and money factor.
Average Return Calculator
CAGR against the arithmetic mean, and why they differ.
Retirement Calculator
Whether your savings will last, and what closes the gap.
Rental Property Calculator
Monthly cash flow, cap rate and cash-on-cash on a rental.
Area Calculator
Area of any common shape, plus conversion between area units.
Calorie Calculator
Daily calories to maintain, lose or gain weight at your own pace.
Compound Interest Calculator
Grow a balance with regular contributions and any compounding frequency.
Loan Calculator
Monthly repayment, total interest and a full amortisation schedule.
Tip Calculator
Work out the tip and split the bill between any number of people.
GST Calculator
Add or remove GST at any rate, with the net, tax and gross shown.
Period Calculator
Next period dates, cycle phases and a twelve-month calendar.
Horsepower Calculator
Horsepower from torque and RPM, or from work over time.
Debt Consolidation Calculator
Whether consolidating your debts actually costs you less.
House Affordability Calculator
How much house you can afford on your income and debts.
Army Body Fat Calculator
US Army AR 600-9 tape test, with the age and sex limits.
Dew Point Calculator
Dew point, humidity or temperature from the other two.
Shoe Size Conversion
Convert shoe sizes across US, UK, EU and Japan.
Age Calculator
Find exact age in years, months, days, hours and minutes.
College Cost Calculator
The full cost of a degree, and what to save each month.
Present Value Calculator
What a future amount or payment stream is worth today.
FHA Loan Calculator
FHA payment including upfront and annual mortgage insurance.
Statistics Calculator
Full descriptive statistics with quartiles, spread and outliers.
Electricity Cost Calculator
What an appliance costs to run per hour, day, month and year.
Fuel Cost Calculator
Work out what a trip costs in fuel and split it between passengers.
Anorexic BMI Calculator
BMI against the clinical underweight and severity thresholds.
Conception Calculator
When conception most likely happened, and the window around it.
Greatest Common Factor Calculator
GCF by prime factorisation and the Euclidean algorithm.
Z-score Calculator
Z-scores, percentiles and probabilities either way.
Right Triangle Calculator
Solve a right triangle from any two known values.
Wind Chill Calculator
How cold it feels, and frostbite risk at that temperature.
Mass Calculator
Mass from density and volume, force, or weight on any planet.
Quadratic Equation Calculator
Solve ax squared plus bx plus c with roots, discriminant and vertex.
Commission Calculator
Commission earned, flat rate or tiered, with splits.
Payback Period Calculator
How long an investment takes to repay itself.
Annuity Payout Calculator
The income a lump sum can pay, and for how long.
Boat Loan Calculator
Boat payment plus the running costs people forget to budget.
Auto Loan Calculator
Car payment with trade-in, sales tax and fees included.
Real Estate Calculator
Property returns: cap rate, cash-on-cash, equity and total profit.
Mortgage Payoff Calculator
See how much time and interest an extra payment removes.
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