Calculators
We offer 94 powerful online math calculators designed to help you solve basic math problems, from working with fractions through the triangle calculator to the statistical calculator. We continually improve our calculators based on feedback from our users. Therefore, if you feel that any calculator we offer can be improved, or add a brand new functionality, or want to report a bug, feel free to contact us. For example, while solving the tasks of the Mathematical Olympiad, we programmed a calculator that can solve cryptograms, such as STROMY = IDIOTIC - MYSTERY.- Fraction calculator
- Decimal calculator
- Fraction simplifying
- Numerical Expressions calculator
- Mixed fractions calculator
- Real number calculator
- Scientific notation calculator
- Ratio calculator
- Complex number calculator
- Percentage
- Permille
- Prime factorization of a number
- Least common multiple
- Greatest common divisor
- Greatest common factor
- Least common denominator
- Divisors
- Quotient and remainder calculator
- Rounding numbers
- Roman numerals calculator
Combinatorics
- Combinations and Permutations Calculator
- n choose k
- Variations
- Permutations
- Variations with repetition
- Combinations
- Combinations with repetition
Equations
- Quadratic equation
- Cubic equation
- Solving system of linear equations
- Linear equation calculator
- Integer Diophantine equations solver
- Linear diophantine equation
Geometry
- Line slope calculator
- Triangle calculator
- Sum of the two vectors
- Calculation of definite integral
- Angle calculator
- Straight lines by two points
Programming/IT
- json_encode converter online
- json_decode converter online
- Alphametic puzzles, cryptarithms, Algebrograms, cryptograms solver
- DateDiff dates difference
- Add weeks and days to a date
- Age
- Birthday reminder
- Margin calculator
- Loan - mortgage
Units
- Conversion of length units
- Conversion of area units
- Conversion of volume units
- Conversion of speed units
- Conversion of time units
- Conversion of mass units
- Conversion of density units
