51064
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.
Long description
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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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Life
Calculate how much you drink pure ethanol
On the basis of the data entered, the amount of drink and the percentage of alcohol content calculator calculates pure ethyl alcohol that we consume.
146084
Life
Battery charging time calculator
Calculator to the data calculates the estimated time of charging.
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Medical
Calculator index of renal failure (Renal Failure Index)
Calculator to the data: the amount of sodium in the urine, serum creatinine and urine of renal failure calculates the RFI.
24857
Employee
Calculator average revenue per employee in the company
Calculator on the basis of the specified amount paid salaries and number of employees, calculates the average annual and
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Math
Arabic numbers Converter - Roman
Calculator converts numbers to roman Arabic or Roman to Arabic vice versa. The maximum value that the calculator correctly parse the number 3999.
17186
Physical
Resistivity and conductivity
The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.
18459
Financial
Tax Interest Calculator in Poland
Interest Calculator allows you to calculate the tax arrears interest on tax arrears after the date on which the payment should be paid and the actual date of payment.