# Mathematics 2023 - Use our 14 calculators

In the **Mathematics** category we offers helpful tools on many topics. Find the right calculator and information about mathematical problems from school, hobby and profession.

Symbol calculator

### Select a calculator from the section 'Mathematics'

## Learn about 14 calculators from the section 'Mathematics'

### Area Converter

Our area converter allows you to convert all common international area units. After entering the corresponding area, you can simply convert the corresponding value into any other unit. The most popular conversions are certainly hectare to square metre, square kilometre to square mile, square metre to square centimetre or square inch to square centimetre.### Calculate Margin

In this area of margin and trade margin, the**Margin Calculator**is used, among other things, to calculate absolute margin, relative mark-up margin and relative mark-down margin, as well as costs, revenues and other key figures.### Circle Calculator

Here everything revolves around the circle: definitions, formulas and calculations for the radius, the diameter, the circumference and the area of the circle with different size units and much more round off the topic. With the help of the circle calculation calculator, you can calculate the most important circle properties, i.e. radius, diameter, circumference and area of a circle.### Cylinder Calculator

How do you calculate the volume of a cylinder? What is the lateral surface area of a cylinder and how do you calculate it? What is the total surface area of a cylinder? We present everything you need to know about "cylinders" here. After entering any two values, the cylinder calculator calculates the values of all other cylinder properties. Numerous examples for calculating the cylinder height, volume, surface area and many more clearly derive the individual calculations.### Discount Calculator

In the**Discount**section, the**Discount Calculator**allows you to calculate the reduced price based on the original regular price. Conversely, the discount received can also be calculated as a percentage, i.e. the saving can be determined if the already reduced price is known. All combinations of discount calculation are thus possible. The diagrams in the result of the discount calculator illustrate the relationship between regular price, discount and reduced price.### Fraction Calculator

What is a fraction? What are numerator and denominator? Why are there real and improper fractions? What are mixed fractions? How do you add fractions? How do you multiply or divide fractions? You can find the answers to these questions and many examples of fractions in the fractions topic.### Online Calculator

The simple version of our calculator offers a simple online calculator. The scientific calculator offers all common calculation methods.### Percentage Calculator

Percentage calculator for all types of percentage calculation. Percentage calculation based on typical questions. In addition to the usual proportional percentage calculation, it is also possible to calculate the percentage increase or decrease of the basic value using the percentage value and percentage. In the info text of the percentage calculator, the calculation path to the result of the percentage calculation is derived in detail and the corresponding percentage formula is displayed.### Random Number Generator

Calculate random numbers within a desired number range with the random number generator. Negative and decimal numbers can be specified. Duplicate numbers can be excluded and the output can also be sorted in ascending or descending order.### Roman Date Calculator

The calculator 'Calculate Roman Date' converts any date into Roman numerals. The day, month and year of a date are translated step by step into individual Roman numerals and then reassembled into a date in Roman numerals.### Roman Numerals

In the section 'Roman Numerals' you will find all the information about Roman numerals. Above all, the rules for Roman numerals, as they are taught in mathematics lessons today, are comprehensively described here. Other historical rules and descriptions round off the section. With the help of the Roman numeral converter, you can convert any Roman numeral into a decimal number. You can also translate any decimal number into a Roman number the other way round.### Triangle Calculator

Everything about the triangle and its calculation: definitions, formulas and calculations for the area, side lengths, perimeter, angles and heights of the triangle. The triangle calculator calculates all these properties using just a few necessary specifications. All values of the calculated triangle and the triangle thus constructed are displayed in the result of the triangle calculator.### Volts Watts Amperes Converter

With the**Volt Watt Ampere Converter**you can convert the electrical voltage volts, the current amperes and the electrical power watts into the other two. The result is calculated using the formula for electrical power and the calculation is derived in detail. In addition to the basic units of volts, amperes or watts, the result also contains the corresponding multiples and fractions, such as microwatts, milliwatts, kilowatts and megawatts.### Volume Converter

Our volume converter allows you to convert common international volumes, i.e. room measurements. After entering the corresponding volume (room measure), you can convert this value into any other unit. The most popular conversions are certainly gallon to litre, barrel to cubic metre or also the conversion from pint to litre.