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Keystone field

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Conversion between number bases

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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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Fractions change form

The calculator converts a fraction to a decimal or vice versa.
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Date calculator

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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.
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Daily caloric needs. How many calories do I need?

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Calculator to the data calculates your daily calorie requirement.                
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Ideal gas equation

Calculator based on the ideal gas law gives the value of the variable you want to calculate on the basis of these other variables.