Online calculators are used in the same manner as hand-held calculators. Calculations can be formulated online or the calculator can be downloaded to your computer. The numbers that require calculation can be inputted from the computer keyboard. Enlarged versions are available for individuals with weak eyesight.
A variety of calculators are available. The basic four-function calculator performs the calculations of addition, subtraction, multiplication, and division. Percentages can also be easily calculated. It is also possible to calculate algorithms if you know the formula. If you do not know the formula, a quick search can help you identify the necessary steps. Interest rates, weights and measures and metric conversions can be calculated using special specific calculators, all of which are available for free use online.