Smart Online Calculators – Finance, Fitness, Math & More
Access accurate and easy-to-use online calculators. From age and loan calculators to calories and tax — simplify everyday calculations in seconds.
Available Online Calculators
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your birth date.
Try this tool →Percentage Calculator
Calculate percentages, percentage increase, decrease, and find what percentage one number is of another.
Try this tool →Average Calculator
Calculate mean, median, mode, and range for any set of numbers quickly and accurately.
Try this tool →Confidence Interval Calculator
Calculate confidence intervals for statistical analysis and data interpretation.
Try this tool →Sales Tax Calculator
Calculate sales tax, total price including tax, or find the tax rate for any purchase.
Try this tool →Margin Calculator
Calculate profit margin, markup percentage, and pricing for your business products.
Try this tool →Probability Calculator
Calculate probability for various scenarios including combinations and permutations.
Try this tool →PayPal Fee Calculator
Calculate PayPal transaction fees and determine the amount you'll receive after fees.
Try this tool →Discount Calculator
Calculate discount amounts, final prices, and savings for sales and promotions.
Try this tool →CPM Calculator
Calculate cost per mille (CPM) for advertising campaigns and media planning.
Try this tool →Loan Calculator
Calculate monthly payments, total interest, and amortization schedules for loans.
Try this tool →GST Calculator
Calculate GST (Goods and Services Tax) amounts for inclusive and exclusive pricing.
Try this tool →Days Calculator
Calculate the number of days between two dates, add or subtract days from a date.
Try this tool →Hours Calculator
Calculate hours between times, add or subtract hours, and convert time formats.
Try this tool →Month Calculator
Calculate months between dates, add or subtract months from any date.
Try this tool →Stripe Fee Calculator
Calculate Stripe payment processing fees and determine net amounts after fees.
Try this tool →Calorie Calculator
Calculate daily calorie needs based on age, gender, weight, height, and activity level.
Try this tool →TDEE Calculator
Calculate Total Daily Energy Expenditure for weight management and fitness goals.
Try this tool →