Accurate calculators for everyday math — from tip splitting to investment growth. All free, all instant.
Calculate percentages for various scenarios.
Calculate your exact age in years, months, and days.
Calculate the future value of your investment with compound interest.
Calculate tip amount and split the bill among multiple people.
Calculate your Grade Point Average on a 4.0 scale.
Calculate the number of days, weeks, and months between two dates.
Calculate monthly payments, total interest, and full amortization schedule for any loan.
Project your retirement savings with monthly contributions, returns, and inflation adjustment.
Our calculators cover the most common everyday calculations: percentages for shopping discounts, age calculations, compound interest for savings, tip splitting at restaurants, and GPA tracking for students. Each tool is designed to give instant, accurate results.
All calculations run entirely in your browser. No data is sent to any server, ensuring your privacy while you work with sensitive numbers.