Other Useful calculators

Generate strong random passwords and see entropy strength in real time.

Generate one or many random integers within a custom range using a cryptographically secure RNG.

Compute your GPA on a 4.0 scale from course grades and credit hours.

Calculate your weighted course grade from individual assignment scores and weights.

Calculate sale price after a percentage discount, with optional sales tax.

Add sales tax to a subtotal and see the total cost.

Calculate miles per gallon from miles driven and gallons used, plus a trip cost estimator.