You can measure the alcohol of your beer by measuring the specific gravity before and after fermentation. This calculator will take your gravity readings and convert them to alcohol by value.
Homebrewing is an art and a science. This is a collection of calculators to help you estimate how a particular recipe will turn out.
Hops add bitterness to balance the sweetness of the sugars in from the malt. This calculator with help you approximate bitterness in International Bittering Units (IBU) provided by your combination of hops.
The grains, extracts and fermentable sugars you use contribute sugars to the wort. These sugars are converted to alcohol by the yeast during fermentation. You can use this calculator to estimate the intial gravity, final gravity and the alcohol by volume of your beer.