Calculators
Quick calculations for design, development and everyday work, done in your browser.
Math 9
Percentage Calculator
Percent of a number, percent change, increases and discounts.Scientific Calculator
Type or tap: trig, powers, roots, logs and factorials.Fraction Calculator
Add, subtract, multiply, divide and simplify fractions.Average Calculator
Mean, median, mode, range and sum of a list.Aspect Ratio Calculator
Find the ratio of any size and the matching size when you resize.Random Number Generator
Secure random numbers in any range, with or without repeats.Standard Deviation Calculator
Sample or population standard deviation, with steps.LCM and GCD Calculator
Least common multiple and greatest common divisor, with steps.Triangle Calculator
Solve a triangle from three sides and angles.
Money 9
Mortgage Calculator
Monthly payment with tax and insurance, and the schedule.Loan Calculator
Monthly payment or borrowing limit, with a full schedule.Compound Interest Calculator
Savings growth with monthly additions, year by year.Auto Loan Calculator
Car payment with trade-in, tax and fees, and total cost.Salary Converter
Hourly, weekly, monthly and yearly pay, from your own hours.Take-Home Pay (Malaysia)
Monthly pay after EPF, SOCSO, EIS and tax in Malaysia.Retirement Calculator
What your savings could grow to, and how long they’d last.Tip Calculator
Work out the tip, the total and each person’s share of a bill.Sales Tax Calculator
Add or remove sales tax, VAT or GST, or find the rate.
Health 6
BMI Calculator
Body mass index, its category and your healthy range.Calorie Calculator
Daily calories to keep, lose or gain weight, and your BMR.Body Fat Calculator
Body fat percentage by the US Navy tape method.Ideal Weight Calculator
Four classic ideal-weight formulas and the healthy range.Due Date Calculator
Pregnancy due date and how many weeks along.Pace Calculator
Running pace, finish time or distance, with splits.
School 3
Also useful
From other categories.
DPI Calculator
Print size, pixels and DPI: enter two and get the third.Video Bitrate Calculator
Video file size from bitrate, or the bitrate that fits a size limit.Age Calculator
Exact age in years, months and days, and the next birthday.Hours Calculator
Hours between two times, or a week’s timesheet, with pay.Subnet Calculator
Network, broadcast, host range and mask from CIDR, IPv4 and IPv6.