Free online calculators.
Fast, accurate calculators for business, finance and everyday life.
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PercentageFind a percentage of any number, from small amounts to large totals.Profit MarginFind your gross profit and the share of revenue you keep.LoanEstimate monthly payments, total interest and borrowing costs.Compound InterestSee how interest and regular contributions grow over time.ROIMeasure your net gain as a percentage of your investment.DiscountFind the sale price and how much you save on a purchase.AgeCalculate age in years, months and days from a date of birth.Freelance RateSet an hourly rate around your income, expenses and billable time.
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BusinessUnderstand margins, pricing, growth and the numbers behind your business.5 toolsFreelancerSet sustainable rates, price projects and plan your billable time.4 toolsFinanceEstimate borrowing costs, savings growth and investment returns.5 toolsEverydayQuick answers for percentages, shopping discounts and splitting a bill.4 toolsDate & TimeFind your age or count the days between two calendar dates.2 tools