Other Calculators
Everyday tools: age, date and time maths, work hours, GPA and grades, concrete volume, IP subnets, secure passwords and unit conversions.
Age Calculator
Exact age in years, months and days, plus next birthday.
Date Calculator
Days between dates, or add/subtract days, weeks, months.
Time Calculator
Add or subtract days, hours, minutes and seconds.
Hours Calculator
Weekly timesheet: hours worked, breaks, overtime and pay.
GPA Calculator
Grade point average on a 4.0 scale with credits.
Grade Calculator
Weighted course grade and the final exam score you need.
Concrete Calculator
Concrete volume for slabs, footings and columns, plus bags.
Subnet Calculator
IPv4 network, broadcast, host range and mask from CIDR.
Password Generator
Strong, random passwords generated securely on your device.
Conversion Calculator
Convert length, weight, temperature, area, volume and more.