Best graphing calculators for school If a basic function or a scientific calculator can't work well, the graphing calculator is probably the solution. It's the most sophisticated type of tool used in financial, statistical, calculus and many other areas. But, it usually comes with a significantly higher cost. With the right features it could cost as little as $40 and up to $100 or more for one. However, as the expression is true, you'll get what you get for your money. If you're not able to match the purchase with a sale It's highly likely that a good graphing calculator will cost you approximately $100. Texas Instruments TI-84 Plus CE An graphing calculator with a high-definition colour display Amazon If you require a calculator that can perform well and give you a clear image, the TI-84 CE is a good choice. It's priced at $150, though you could often see it on Amazon for just $105 or less. The TI-84 Plus CE has a high-res, full-color ba