Verifiers

Verifier numbers EAN-13 preview

Verifier numbers EAN-13 Calculator allows you to verify the number entered EAN-13.

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73375

Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

60689

Verifiers

Verification of the social security number in Poland

It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.

38401

Verifiers

Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?

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Math

Calculation fields of plane figures

Jak obliczyć pole figury płaskiej?
Jak obliczyć pole kwadratu?
Jak obliczyć pole prostokąta?
Jak obliczyć pole trójkąta?
Jak obliczyć pole trapezu?
Jak obliczyć pole koła?

Calculator helps you calculate the area of the selected shape.

306723

Medical

Unit Converter glucose (blood sugar)

converter converts the blood sugar level in milligrams per deciliter (mg / dL) in millimoles per liter (mmol / L) and vice versa. http://pl.wikipedia.org/wiki/Glikemia

55562

Financial

Net return on sales (ROS)

Calculator based on the values entered and net profit calculated return on sales ROS. ROS announces net income (after tax), attributable to every penny of products, goods and services.

12768

Legal

Legal calculator

Calculates the effective date of the act, published in the official journal.

13643

Medical

Acute respiratory acidosis - the level of carbonic acid

The calculator calculates the change in the amount of carbonic acid in the body caused by impaired ability to excrete carbon dioxide through the respiratory system - an illness called acute respiratory acidosis.