Other Calculators
Age, bill split, percentage, date, time, GPA, subnet, password, and everyday tools — instant and shareable. No signup.
20 calculators available
Basic & Scientific Calculator
One keypad for everyday arithmetic and scientific math — switch modes for trig, logs, powers, π, e, and DEG/RAD angles.
Calculate →Bill Split Calculator
Split group bills and shared expenses for up to 50 people. See who owes whom and settle with the fewest payments.
Calculate →Percentage Calculator
Find a percentage of a number, calculate percent increase or decrease, and measure percent change between two values.
Calculate →Tip Calculator
Tip & split a restaurant bill — pick a tip %, see total, and divide per person.
Calculate →Pet Age Calculator
Convert your dog or cat's age into equivalent human years based on size and species.
Calculate →Date Calculator
Find the difference between two dates or add and subtract days, weeks, months, and years.
Calculate →Time Calculator
Add or subtract hours and minutes from a start time of day.
Calculate →Hours Calculator
Calculate hours worked between start and end times with optional break deduction.
Calculate →GPA Calculator
Calculate semester or cumulative GPA from course grades and credit hours.
Calculate →Grade Calculator
Calculate your weighted final grade from assignment scores and their weights.
Calculate →Concrete Calculator
Calculate concrete volume for slabs, footings, and pads in cubic feet, yards, or metres.
Calculate →IP Subnet Calculator
Calculate network, broadcast, host range, and subnet mask from CIDR notation.
Calculate →Password Generator
Generate strong random passwords with custom length and character sets plus a strength meter.
Calculate →Dice Roller
Watch virtual dice tumble and land with classic pip (dot) faces — roll up to 12 dice, d4 to d20 or custom sides.
Calculate →Gas Mileage Calculator
Calculate fuel efficiency in L/100 km, km/L, and MPG from distance and fuel used.
Calculate →Age Calculator
Calculate your exact age in years, months, and days from your date of birth — plus total days lived, next birthday countdown, live seconds counter, and life milestones.
Calculate →Age Difference Calculator
Find the exact age difference between two people — years, months, days, and total days between their birth dates.
Calculate →BMI Calculator
Calculate your Body Mass Index (BMI) with metric or imperial units, see WHO category, healthy weight range, and personalised insights.
Calculate →BMR Calculator
Calculate your Basal Metabolic Rate (BMR) with Mifflin–St Jeor, then see TDEE by activity level — metric or imperial, with cut and surplus calorie bands.
Calculate →FLAMES Calculator
Play the classic FLAMES love game — enter two names to reveal Friends, Lovers, Affectionate, Marriage, Enemies, or Siblings.
Calculate →Need unit converters?
Convert length, weight, temperature, volume, and more — 13 dedicated converter tools.
Browse all converters →