Calculators
A growing set of free online calculators for daily life, school and work. Check your BMI and weight category, calculate your exact age, work out loan or mortgage payments, split a restaurant tip, apply a discount, solve percentages, project compound interest, and compute your GPA. Every calculation runs instantly and privately in your browser.
BMI Calculator
Calculate your Body Mass Index and weight category — instantly, in your browser.
Age Calculator
Calculate your exact age in years, months and days — instantly, in your browser.
Date Difference Calculator
Find the number of days, weeks, months or years between two dates — instantly.
Percentage Calculator
Work out percentages, "X% of Y" and percentage change — instantly, in your browser.
Loan Calculator
Estimate monthly loan or mortgage payments and total interest — instantly, in your browser.
Tip Calculator
Split a restaurant bill and calculate the tip per person — instantly, in your browser.
Discount Calculator
Calculate the final price after a discount and how much you save — instantly.
Compound Interest Calculator
Project how your savings or investment grows with compound interest — instantly.
Scientific Calculator
Evaluate math expressions with + − × ÷ and powers — right in your browser.
GPA Calculator
Calculate your Grade Point Average from course grades and credits — instantly.
Mortgage Calculator
Estimate your monthly mortgage payment, total interest and total cost — instantly, in your browser.
Sales Tax Calculator
Add sales tax to any amount in one tap — perfect for shopping and invoicing.
VAT Calculator
Add or reverse VAT on any net amount for invoicing and accounting.
Salary Calculator
Convert an hourly rate to annual, monthly and weekly salary.
ROI Calculator
Measure the return on any investment as a percentage and profit figure.
Break-Even Calculator
Find how many units you must sell to cover costs.
Savings Goal Calculator
See how much to save each month to hit a savings goal.
Retirement Calculator
Project your retirement savings from current age and contributions.
Inflation Calculator
See how inflation changes the future cost of money.
TDEE Calculator
Estimate your daily calorie needs (BMR and TDEE).
Calorie Calculator
Work out the calories to maintain, lose or gain weight.
Pregnancy Due Date Calculator
Estimate your due date from the first day of your last period.
Body Fat Calculator
Estimate body fat percentage with the U.S. Navy method.