Calculators Toolkit
Percentages, BMI, age, loans, tips and other everyday math, done right.
Percentage Calculator
Calculate percentages, percentage of a number, and percent change.
Open toolBMI Calculator
Calculate Body Mass Index from height and weight.
Open toolAge Calculator
Calculate exact age in years, months, and days.
Open toolDate Difference Calculator
Calculate the number of days between two dates.
Open toolTip Calculator
Calculate tip amount and split the bill between people.
Open toolDiscount Calculator
Calculate a sale price and how much you save.
Open toolLoan EMI Calculator
Calculate monthly loan payments from principal, rate, and term.
Open toolCompound Interest Calculator
Project investment growth with compound interest and contributions.
Open toolGPA Calculator
Calculate GPA from letter grades and credit hours.
Open toolHourly to Salary Calculator
Convert an hourly wage into weekly, monthly, and annual pay.
Open toolSimple Interest Calculator
Calculate interest earned on a principal at a fixed rate, no compounding.
Open toolSavings Goal Calculator
Calculate the monthly contribution needed to hit a savings goal.
Open toolBreak-Even Point Calculator
Calculate how many units you need to sell to break even.
Open toolFreelance Hourly Rate Calculator
Calculate the hourly rate you actually need to charge as a freelancer.
Open toolMarkup vs. Margin Calculator
Calculate markup and margin percentage from cost and selling price.
Open toolSales Tax Calculator
Add or remove sales tax from a price.
Open tool