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Area of ​​a rectangle

The calculator can calculate the area of a ​​rectangle.


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Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.              
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Conversion between number bases

Converter allows you to convert numbers between number bases - binary (binary), trójkowym, czwórkowym, Friday, szóstkowym, siódemkowym, octal (octal), dziewiątkowym, decimal (decymalnym) jedenastkowym, dwunastkowym, trzynastkowym, czternastkowym, piętnastkowym, hexadecimal (hex). Typed characters that are not numbers and the letters A, B, C, D, E, F are ignored.      
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Trigonometric functions calculator

Calculator by entering an angle in degrees or radians calculated values ​​of the basic trigonometric functions.
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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.            
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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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Calculator selection taxation (global or general rules)

Calculator makes it easier to decide on one of the forms of taxation (lump sum - General)                        
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Converter phone number

The converter accepts input alphanumeric phone number and converts it to a numeric format.    
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Calculator burning fuel, LPG​​, gasoline for your car

Calculator based on the length of stay and average fuel cost of fuel (gasoline or gas) will calculate how much you pay for fuel.