| Privacy policy

Online Calculators & Express Evaluation. Fast and convenient calculation on your smartphone, tablet, computer, laptop. Comfortable computing on any device

Privacy policy

Privacy Policy

Privacy Policy is aimed at the safe processing of user data on our Web site (the "Web site"). Acquaintance and consent of the user with the Privacy Policy is a prerequisite for using the Web site.

Internet infrastructure

To operate the Web site on the Internet, equipment, technologies and services provided by third parties are used, in particular, domain name resolution servers, data transfer to the Internet, website hosting, quality services, content display, operating systems, browsers and other elements are used Internet infrastructure.

Web analytics and marketing

Web analytics, marketing and other tools are used to develop the services and technologies of the Web site.

In any case, it is useful to study the privacy policy of web analytics and marketing services of Google and Yandex (in particular, Google.Analytics, Yandex.Metrica and Yandex.Direct), since these services are used or can be used on the site pages.

Links to third party sites

Within the information materials of the Web site (articles, notes, images, etc.) may contain links to sites and information sources of third parties.


Cookies can be used to store data on various aspects of the user's experience on the Web site. These files can be created by both site services and third-party services, for example, web analytics. An example of the use of cookies may be a region for which calculations are performed, which allows the use of formulas and coefficients for the selected region.

You can control and/or delete cookies as you wish. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.

User data

Processing of user data is performed on the Web site during a user session. Site user data can contain both personalized data elements and universal (non-personalized) data. At the end of the session, the hosting servers and Internet service providers can save technical information that registers requests to the Web site. Technical data may contain information about the device model, operating system, browser, screen size and color, time stamps and other information.

Web analytics and marketing tools collect and process the received information in accordance with their capabilities and applicable laws. At the end of the user's session, the Site Administration may have access to the technical data of the hosting servers and data processed by web analytics and marketing.

Modern legislation and technological tools allow safe processing of user data. During processing, the data is converted into the form of universal (non-personalized) profiles.

Purpose of processing user data

Providing the best site features for online calculations and related reference information is the primary goal of processing user data. The use of data collected and processed by third-party services (in particular, web analytics and marketing) is intended to study user preferences, statistics, geography of application and popularity of various calculations. As a rule, the privacy policy of third-party services is aimed at "depersonalization" of the information collected, thanks to which the collected data do not have identification purposes with specific people and are designed to work with impersonal user profiles.

Third Party Services and Sites

We do not control the processing of data on third-party sites and services. In this regard, we are not and cannot be held responsible for the actions of third parties. Since the operation of the Web site itself depends on the availability and functioning of the Internet infrastructure, the user independently determines his risks and relationships with third parties in the process of using websites on the Internet.

Privacy Policy Changes

Privacy Policy are subject to change without notice. The current version of the Privacy Policy is posted on this page at and users need to regularly check its content for possible changes and additions. Continued use of the Web site after the change of the Privacy Policy means the user's consent to the Privacy Policy in general and its updated provisions.

User consent

The use of the Web site by the user means the full consent of the user to this Privacy Policy and the Terms of Use of the Web site, posted on a separate page at

In case of disagreement with the Privacy Policy and the Terms of Use, the user must stop using the Web site.

To contact us please use our Contact information.