Online calculators for quick calculations, an extensive collection of calculators on Math, Grade, Electric, Lightning, Financial, Date & Time, etc.

Try online Grade Calculators for computing weighted average grades and final grades, as well as grade needed for the remaining Exams, Tests, and Assignments.

A collection of online electrical calculators to calculate the calculations of electricity. Solve your complex equations and calculations quickly!

Try an extensive collection of free Financial calculators. The right financial calculator can help you with Mortgages, Loans, Investments, Debt, and more.

A collection of online lighting calculators is the best tools in lighting, and it has lots of calculations that can help you in your work.

An extensive collection of online Date and Time calculators to calculate all your Time and Date related calculations.

Try free math calculators that compute Statistics, Geometry, Triangle, Percentages, Fractions, Unit Conversions, and hundreds of other calculators.