Calculators
Dates, money, percentages and loans, with the formula shown next to every answer.
Age CalculatorWork out exact age in years, months and days, plus the days until the next birthday.In browserDate Addition CalculatorAdd or subtract days, weeks, months or years from a date, with an option to count business days.In browserDate Difference CalculatorCount the days, weeks, months and business days between two dates.In browserDiscount CalculatorFind the sale price and savings from a percentage or fixed discount, including stacked discounts.In browserLoan Repayment CalculatorEstimate regular loan payments, total interest and a full amortisation schedule.In browserMortgage Repayment CalculatorEstimate mortgage payments from price, deposit, rate and term.In browserPercentage CalculatorSolve every common percentage question: X% of Y, what percent, and percentage change.In browserProfit Margin CalculatorCalculate gross profit, margin and markup from cost and selling price.In browserMarkup CalculatorFind the selling price from cost and markup percentage, or the markup from two prices.In browserSimple Interest CalculatorCalculate simple interest and the total amount using I = P × r × t.In browserCompound Interest CalculatorSee how savings grow with compounding and regular contributions.In browser