Calculators
Money, health, dates and school maths worked out in one tap. 17 free tools, no signup.
Age Calculator
Your exact age in years, months and days — plus a countdown to your next birthday.
Car Loan Calculator
Real monthly payment on a car, including tax, trade-in and dealer fees.
Compound Interest Calculator
How savings grow over time with regular contributions and compounding.
Date Difference Calculator
How many days, weeks, months or working days lie between any two dates.
Discount Calculator
Final sale price and your saving, including stacked and double discounts.
Fuel Cost Calculator
Fuel cost for any journey, split between passengers if you like.
GPA Calculator
Work out your GPA from letter grades and credit hours.
Income Tax Calculator
Estimate take-home pay after income tax and national insurance or FICA.
Loan Calculator
Monthly repayment, total interest and full cost for any loan amount and rate.
Mortgage Calculator
Full monthly payment including tax, insurance and PMI — not just principal and interest.
Overtime Pay Calculator
Work out overtime pay at any rate and your total for the week.
Percentage Calculator
Find a percentage of a number, what percent one number is of another, or a percent change.
Pregnancy Due Date Calculator
Estimated due date, current week, and what each trimester covers.
Retirement Calculator
Projects your pot at retirement and how long it lasts in today’s money.
Salary Calculator
Convert between hourly, weekly, monthly and annual pay in one step.
Sales Tax Calculator
Add tax to a price, or work backwards to strip it out of a total.
Tip Calculator
Tip amount, total, and what each person owes when you split the bill.