Verifiers

Verifier numbers Postnet

Calculator allows you to verify the number entered Postnet.

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74464

Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

61616

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.

51423

Verifiers

Verifier numbers EAN-13 preview

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

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Life

Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description

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Calculator floor panels

Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.

23980

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Centroid of the triangle

The calculator calculates the centroid of the triangle. Centroid is the point through which the median of the three triangle. It divides each median in the ratio of 2:1.

54568

Building

Amount of paint necessary to paint the room

Calculator to estimate the amount of paint needed to paint a room by painting a single and double.

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Insulation of wall

Jak policzyć izolację ścian?

Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.