You can only avoid using APR calculators if you have never taken a loan in your life or don't intend to in the foreseeable future. You are also exempted from using or even coming to close contact with it if you have hired your own personal accountant who does every calculation on your behalf. A consumer is entitled to know the APR for purposes of consumer credit convenience. The Annual Percentage Rate calculator is the perfect software that should feature amongst the other tools that you require to facilitate your loan payment process. You need to use this software in order to determine your current financial situation after taking a loan. This software will provide you with the ability to make wise financial decisions that might positively impact on your future. In general, you can only be able to have a hold on your financial life with such tools in place helping you find the APR.