FREE ONLINE TOOLS
Quick answers for everyday numbers.
Calculators, converters and handy utilities that work right in your browser. No sign-up, no downloads, no waiting.
Popular:
Works in your browser
No account needed
Free to use
START ANYWHERE
Every tool you need, sorted and simple
Percentages, discounts, fractions and all the everyday maths you’d rather not do by hand.
EVERYDAY
Percentage Calculator
% of · % change · % increase
Input20% of 150
Result30
SHOPPING
Discount Calculator
Sale price · you save · stacked offers
Input249 − 30%
Result174.30
MATH
Fraction Calculator
Add · subtract · simplify
Input3/4 + 2/3
Result17/12
Length, weight, temperature, speed and more. Results update as you type.
See all converters
Loans, savings and interest, worked out in seconds.
Loan amount250,000
Rate · term4.5% · 5 years
Total interest29,645
Principal 89%Interest 11%
Exact ages, countdowns, working days and time zones.
34 yrs, 4 mo, 21 days
Age · born 14 Jun 1992
Invoices, VAT, profit margins and break-even. The numbers behind a small business, done properly.
Open Invoice Generator
BMI, calories and water intake, with the healthy ranges explained.
EMI CalculatorWork out the monthly payment, total interest and total cost of any loan…Mortgage CalculatorMonthly home loan payment from the property price, down payment, rate and…End of Service Calculator (Saudi)Saudi end-of-service gratuity calculator based on Labor Law Articles 84…Zakat CalculatorCalculate zakat on cash, gold, silver, investments and business goods at…SIP CalculatorSIP calculator: see how a monthly investment grows with compounding, with…Percentage CalculatorFind X% of a number, what percent one number is of another, and the…Age CalculatorCalculate your exact age in years, months and days, the total days you…BMI CalculatorCalculate your body mass index (BMI) from weight and height, see the…
PRIVATE BY DESIGN
Your numbers never leave your device.
Every calculation runs in your browser. Nothing you type is sent to a server or saved anywhere.
No account, no email, no tracking of your inputs
Results as you type
The formula shown under every answer