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Calendar
Calculator seniority in Poland
Calculator to calculate the total length of service after the date of employment or dismissal.
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Calendar
Date calculator
Calculator allows you to calculate the date, which will be after a specified number of days, months and years from a certain date.
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Calendar
Perpetual calendar
jak obliczyć dzień tygodnia na podstawie daty?
Calculator gives what day of the week for the date specified by the user.
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Building
Single-layer wall insulation
Calculator allows you to calculate izolacyjość single-layer wall.
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Life
Combustion Calculator - L/100km <-> MPG (U.S.)
Calculator allows the conversion of fuel combustion km / h on U.S. MPG (Miles per Gallon) and vice versa.
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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.
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Verifiers
NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
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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.