Everyday Calculators

Grades, concrete, subnets and passwords: the handy calculators that do not fit anywhere else.

Education

  • GPA CalculatorCalculate your grade point average on the 4.0 scale from letter grades and credit hours.
  • Final Grade CalculatorFind the score you need on your final exam to reach the overall grade you want.
  • Uni Grade CalculatorWork out your weighted average mark across modules and the UK degree classification it points to.

Home & tech

  • Concrete CalculatorCalculate the cubic yards of concrete, or the number of bags, needed for a slab.
  • Subnet CalculatorCalculate the network address, broadcast address, subnet mask and usable host range for an IPv4 subnet.
  • Password GeneratorGenerate a strong random password in your browser, with your choice of length and character types.