EAR Calculator
Enter every measurement EAR Calculator asks for, then press Calculate. The result stays blank while you are still typing.
Press Calculate after the entries are in.
What EAR is for
EAR Calculator is the page to open when you need ear 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
- Annual Rate. Enter the value this part of the job needs.
- Compounding. Enter the value this part of the job needs. The choices include daily, weekly, semimonthly, monthly, quarterly, semiannually.
The formula in plain language
The EAR 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
Type 10 in Annual Rate, press Calculate, and note the ear figure. Then type 20 and calculate again. A quantity that should double will double. A rate or a ratio may move by a different amount, and that difference is the thing to check against the formula above.
Rate, term, and payment have to be the same loan. This EAR result should agree with compound interest and future value calculator.
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 ear 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.