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Cost of Debt Calculator to Calculate Opportunity Costs

Calculator Preferences
Cost of Debt Calculator Sign
Cost of Debt Calculator

This calculator will calculate the cost of a debt in terms of the interest you could be earning on the interest charges you are paying. The results also include the opportunity costs of the purchase that created the debt in the first place, as well as a payment-by-payment interest paying versus earning comparison chart. The Learn tab includes:

  • What are Opportunity Costs?
  • Tangible opportunity costs of buying on credit.
  • Intangible opportunity costs of buying on credit.
Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Balance:Balance owed:Current balance owed:Current balance owed:

Current balance owed:

Enter the amount you still owe on the debt, but without the dollar sign or any commas. Due to compounding interest, the amount you owe cannot be arrived at by simply multiplying your payment amount by the number of payments remaining. You may need to call your lender to find out the exact amount you owe.

Rate:Interest rate:Annual interest rate:Annual interest rate:

Annual interest rate:

Enter the annual interest rate percentage you are being charged for the debt, but without the percent sign (for .18 or 18%, enter 18).

Minimum pmt:Minimum payment:Current minimum payment amount:Current monthly minimum payment amount:

Current monthly minimum payment amount:

Enter the amount of your current monthly payment. Enter as a dollar amount but without the dollar sign and any commas.

Pmt type:Payment type:Fixed or declining minimum payments:Fixed or declining minimum payments:

Fixed or declining minimum payments:

Choose whether your monthly payment is a Fixed amount, or a Declining minimum payment amount.

ROI:Invest rate:Return on investments:Percent return on investments:

Return on investments:

Enter the rate of return you expect to earn on your investments. Enter as a percentage, but without the percent sign (for .04 or 4%, enter 4).

Months:Payoff months:Months to pay off debt:Months to pay off debt:

Months to pay off debt:

Based on your entries, this is the number of payments you will need to make in order to pay off this debt.

Interest Cost:Interest cost:Total interest cost:Total interest cost:

Total interest cost:

Based on your entries, this is the total interest charges you will pay between now and when you pay off this debt.

Lost interest:Lost earnings:Foregone interest earnings:Foregone interest earnings:

Foregone interest earnings:

If you would have paid cash for what this debt was used to purchase, and invested the avoided interest charges, this is what your investment would be worth for the same time period you would have been making payments on your debt.

Difference:Difference:Difference between borrowing and saving:Difference between borrowing and saving:

Difference between borrowing and saving:

This is the difference between what you will pay in interest charges on this debt, and what you could have earned with the interest savings if you had not created this debt in the first place.

If you would like to save the current entries to the secure database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

Feedback AppreciatedFeedback Greatly AppreciatedYour Feedback Would Be Greatly AppreciatedYour Feedback Is Greatly Appreciated
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Tip

Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.

 

Favorites

Add or remove this page to/from my favorites.

Adjust Calculator Width:

Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.