APR Calculator
Enter every measurement APR Calculator asks for, then press Calculate. The result stays blank while you are still typing.
Press Calculate after the entries are in.
What APR is for
APR Calculator is the page to open when you need apr from measurements you already have. It belongs with the other financial calculators because that is the work this arithmetic supports. The monthly payment that pays the balance off is the amortizing payment. Type the entries first. The result stays hidden until you press Calculate, so a half-finished form never flashes a number you might mistake for the answer.
How to fill in this calculator
- Loan Amount. Enter the value this part of the job needs.
- Interest Rate. Enter the value this part of the job needs.
- Term. Enter the value this part of the job needs.
- Financed Fees. Enter the value this part of the job needs.
- Prepaid Fees. Enter the value this part of the job needs.
The formula in plain language
The APR result is the standard relationship for this job, applied to the numbers you type and the units on those fields. Loan and interest math here is the standard textbook formula. It is a planning figure, not a lender's offer. Fees, insurance, and a rate that changes will move the real payment. Compare two options with the same term and the same fees included. A lower payment that lasts many more months can cost more in interest.
A worked example
Suppose Loan Amount is 12 and Interest Rate is 8, in the units already selected on those fields. Press Calculate and write down the apr result. Change only Loan Amount to 24 and calculate again. If the result scales the way the formula says it should, the page is reading the form the way you intended. If it jumps by a factor of twelve, the unit on that field is still set to inches while you were thinking in feet, or the other way around.
Rate, term, and payment have to be the same loan. This APR result should agree with paying off a mortgage and APR converted to APY.
Mistakes that move the answer
- Leave the unit selector on the unit you actually measured.
- Press Calculate only after every required field is filled. An empty field is not a zero unless you typed zero.
- Round the result to the precision you can buy or build. Extra decimals do not make a tape measure more accurate.
How to check the result
After Calculate shows the apr result, redo the last operation with a pencil using the rounded figures on the screen. Matching that check means the inputs were read correctly. If you edit a label or a sentence in this HTML file, reload the page. The form and this article both live in the file, so the edit is what visitors will read.