Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

Long description

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66868

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.

57097

Verifiers

Verifier numbers EAN-13 preview

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

44054

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.

27419

Building

Air conditioning calculator

Calculator helps you calculate the estimated power consumption for room air conditioner with the specified size and the number of people working in the space.

16418

Medical

Peak expiratory flow in Asthma

Calculator based on the difference between the maximum and minimum peak expiratory flow (PEF) provides diagnostic information on the state of the patient's asthma.

26457

Health

Daily caloric needs. How many calories do I need?

Ile kalorii potrzebuję?

Calculator to the data calculates your daily calorie requirement.

354127

Financial

ROCE - an indicator of the efficiency of investment

The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.