Verifiers

Verifier NRB / BBAN

Calculator allows you to verify the correctness of the entered account number.

Long description

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39059

Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

32587

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.

28165

Verifiers

Verifier numbers EAN-13 preview

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

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30692

Life

Calculator - dosage of CO2 in the aquarium

Ile co2 w akwarium? Dawkowanie co2 w akwarium.

The online calculator by entering the pH and kH values to calculate the concentration of CO2 in the aquarium.

1020841

Life

Rainwater tank

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

2689263

Building

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.

43876

Math

Circumference of an ellipse

The calculator calculates the circumference of an ellipse for a given length of the axis passing through it.

1041050

Building

Number of wallpapers

Jak oszacować niezbędną ilość tapety?
Ile kupić tapety?
Jak obliczyć ilość tapety potrzebną do wytapetowania pokoju?

Calculator to estimate the necessary amount of wallpaper needed to wytapetowania room of the given dimensions.