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Find the right online calculator for your needs. Perform mathematical calculations, explore sums and series, derivatives, integrals and number theory, or estimate interest, investment returns, salary, mortgage payments, VAT and unit conversions. Search our calculators or browse by category to find the tool you need.

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Free Online Calculators

Explore calculators for mathematics, personal finance, salary, housing, tax, transport, unit conversions and health. Search by keyword or choose a category to find the calculation you need.

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Tax Calculator

A general-purpose tool for indicative tax calculations.

Tax and VAT

Length Converter

Convert metres, kilometres, centimetres, miles and other units.

Unit Converters

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Calcolatrice.net: Online Calculators for Mathematics and Everyday Life

Calcolatrice.net brings together free calculation tools for students, teachers, professionals and anyone who wants to solve mathematical problems or obtain numerical estimates quickly. The collection includes scientific calculators, percentage and fraction tools, statistics, interest, investments, salary, Italian TFR severance pay, mortgages, VAT, unit conversions and other everyday calculation tools.

Advanced Mathematics: Sums, Series and Number Theory

The mathematics collection also covers more advanced topics. Explore tetration, hyperoperations and pentation, or use calculators for sigma notation, series sums, factorial sums, powers, squares, cubes, even and odd numbers, and the Fibonacci sequence.

For calculus, the collection includes tools for partial derivatives, higher-order derivatives, indefinite integrals, integration by parts and supported improper integrals. Other tools explore integer partitions, triangular numbers, digital roots, sums of divisors and sums of prime numbers.

Personal Finance, Salary and Housing

Financial calculators help estimate interest, returns, capital growth and the results of regular investments. Salary-related tools cover take-home pay estimates, gross annual salary, Italian TFR severance pay, additional salary payments and social security contributions. Housing calculators help estimate mortgage repayments, personal loan costs, amortisation schedules and rental property yields.

How to Find the Right Calculator

Enter a keyword in the search box or select a category. Search by calculator name, mathematical topic or related term. The results update instantly without reloading the page.

Results relating to investments, employment, tax and health are provided for general informational purposes. Estimates depend on the assumptions and information entered and do not replace advice from a qualified professional. Some salary and tax tools are based on Italian concepts and may not apply to other countries.

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