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Other Calculators

Free calculators for age, date, GPA, unit conversion, and more.

10 calculators — all free, no sign-up

Calculate your exact age in years, months, days, hours, and minutes.

Date Calculator

Find the number of days between two dates or add/subtract days from a date.

Time Calculator

Add or subtract hours, minutes, and seconds from any time.

Hours Calculator

Calculate total work hours between start and end times with break deduction.

Calculate your weighted GPA by entering your courses, credits, and grades.

Grade Calculator

Calculate your final weighted grade from multiple assignments and exams.

Password Generator

Generate strong, random passwords with custom length and character sets.

Conversion Calculator

Convert between units of length, weight, temperature, area, volume, and speed.

Concrete Calculator

Calculate the volume of concrete needed for slabs, columns, and footings.

IP Subnet Calculator

Calculate network address, broadcast, host range, and usable IPs for any CIDR block.

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