Other Calculators

A collection of useful everyday calculators for age, dates, time, grades, networking, and more.

Calculate your exact age in years, months, and days from your date of birth.

Calculate the difference between two dates, or add/subtract days from a date.

Add or subtract times, and convert between different time units.

Calculate the number of hours and minutes between two times.

Calculate your GPA (Grade Point Average) for a semester or cumulative GPA.

Calculate the grade you need on a final exam to achieve your desired course grade.

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

Calculate subnet masks, network addresses, and broadcast addresses from CIDR notation.

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

Convert between different units of length, weight, temperature, volume, and more.

Calculate voltage, current, resistance, and power using Ohm's Law.

Calculate force, mass, or acceleration using Newton's Second Law of Motion.