Fertile day calculator
The fertile days calculator allows to check when the woman has the best chance of getting pregnant. All you need to do is give the average length of your cycle and the date of the first day of the cycle (the first day of your period).
Would you like to check how much alcohol has remained in your body after an evening...Blood group calculator
Can you predict the child's blood group knowing the blood group of the father and...BMI calculator
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If running is your passion, you will surely appreciate our running calculator. It...
Do you know what is the average daily caloric demand of your body? If not, you can...How many zeros
Are you wondering how many zeros are in a million, a billion, a billiard or a trillion?...Stopwatch
The stopwatch is most often used during workouts, it may also be useful in other...Currency calculator
The currency calculator allows you to convert currencies according to the latest NBP...