Annual Percentage Cost Calculator
Annual percentage cost answers a plain question in one number: what does this credit cost me per year, as a percentage of what I borrowed? The annual percentage cost calculator below starts from the figure lenders already print on your statement, the total finance charges, and spreads it over the loan amount and the term. Borrow $10,000, pay $1,200 in total finance charges over 2 years, and the annual percentage cost is 6.00%.
That is deliberately not the same job as an APR calculator. APR is a regulated disclosure solved from the timing of every payment, and the sibling page in this wave that converts a yearly rate into a monthly one does rate conversion, not cost. This page is for the UK-style total cost question and for a second job APR pages ignore completely: what it costs, per year, to skip a supplier early payment discount like 2/10 net 30.
APC is a straight-line comparison figure. Before signing, compare it with the APR on the lender disclosure, which is calculated from the actual payment schedule under rules like the CFPB Regulation Z text.
Quick Answer
How the annual percentage cost is worked out
Divide the total finance charges by the loan amount, divide again by the term in years, and multiply by 100. Three inputs, no payment schedule, no note rate. That is the whole method, and its simplicity is both the strength and the limit of the measure.
Worked through on the pre-filled example: $1,200 / $10,000 is 0.12, so the credit costs 12% of the amount borrowed across its whole life. Spread over 2 years that is 6.00% per year, or about $600 of charges per year. Change only the term to 1 year and the same deal costs 12.00% per year. Nothing about the loan changed except how long you hold the money, which is exactly why yearly cost, not total charges, is the fair comparison. If the fees themselves are what you are checking, a loan fee calculator breaks a charge down piece by piece before you total it here.
APC, APR, and a monthly rate are three different numbers
Confusing these three is the most common reason borrowers compare the wrong offers. APC starts from charges and gives a straight-line yearly cost. APR is solved from payment timing and is the figure lenders must disclose. A monthly rate is just a yearly rate divided into months, with no charges in it at all.
| Measure | Starts from | What it tells you |
|---|---|---|
| Annual percentage cost (this page) | Total finance charges, amount, term | Average yearly cost as a percent of the amount borrowed |
| APR (lender disclosure) | Payment schedule, amount financed, regulated fees | The legal comparison rate on the loan documents |
| Monthly rate conversion | A yearly interest rate only | The same rate expressed per month, no fees counted |
For that third job, converting an annual rate to its monthly equivalent, use the apr per month calculator in this same batch. It converts rates, it does not cost a loan, and using it in place of a cost figure will understate any deal with fees. The UK consumer guide at MoneyHelper credit guides makes the same distinction for British borrowers, where the total charge for credit is the regulated concept behind the representative APR.
The trade credit tab: pricing a skipped discount
Suppliers who offer 2/10 net 30 are lending you money whether you notice or not. Pay on day 30 instead of day 10 and you have borrowed the discounted price for 20 extra days, at a price of 2 percent. Annualized, that is 36.73 percent, more expensive than almost any bank line.
The decision rule falls straight out of the bars: if you can borrow at less than 36.73%, borrow and take the discount. Businesses that routinely pay on day 30 are choosing the most expensive credit on their books by accident. The dedicated annualized cost of trade credit calculator goes deeper on supplier terms alone, while this page keeps the trade result next to the loan result so the two kinds of credit can be compared in one visit. For a loan you then take to a lender, a basic loan calculator turns the amount and term into the payment itself.
What competing calculators miss
The ranking field splits into exact APR engines and one-line percentage tools, and both leave a gap this page fills.
Winning move 1: start from the charges on the statement. Exact APR calculators need a note rate and a payment schedule before they can start. Borrowers comparing an offer letter often have only three numbers: amount, total charges, term. This tool is built for exactly those three numbers.
Winning move 2: the term is never optional. Several simple tools divide charges by amount and call the result annual. On a 2 year loan that doubles the apparent yearly cost, and on a 5 year loan it multiplies it by five. APC divides by term every time, and the worked example shows the 1 year versus 2 year difference explicitly.
Winning move 3: trade credit in the same tool. No APR page we reviewed prices a skipped early payment discount, even though at 36.73% it dwarfs most loan costs. Putting both modes behind tabs keeps the comparison one click apart.
The honest limit deserves repeating: APC is an average. On an amortizing loan the balance shrinks, so the true economic cost per year on the money actually owed is higher than the straight-line figure, which is part of why a disclosed APR usually sits above the APC for the same deal. Use APC to rank offers quickly, then confirm the winner against its APR disclosure, as the CFPB guide to rate versus APR recommends.
Frequently asked questions
Annual percentage cost spreads the total finance charges on a loan over its term and expresses them as a yearly percentage of the amount borrowed. A $10,000 loan with $1,200 of finance charges over 2 years has an APC of 6.00 percent: 1,200 divided by 10,000, divided by 2, times 100.
No, although they answer a similar question. APR is a regulated figure solved from the timing of every payment, the amount actually financed, and the fees a lender must include, which is why lenders disclose it on loan documents. APC is a simpler straight-line measure that starts from the total finance charges you already know and divides by amount and years. Use APC for a fast comparison, APR for the legal disclosure figure.
Interest over the full term plus the fees charged because you borrowed: origination fees, arrangement fees, and similar lender charges rolled into the deal. It does not include costs you would pay in cash anyway, such as insurance you chose separately, and it does not include the principal, which is repaid, not a cost.
The same $1,200 of charges costs 12.00 percent a year on a 1 year loan and 6.00 percent a year on a 2 year loan, because the cost is spread over more years. Term is the input people most often leave out, and it is why a single total-cost percentage without a term, which some calculators publish, overstates the yearly cost of any loan longer than a year.
It is the annual cost of skipping an early payment discount. Terms of 2/10 net 30 mean 2 percent off if you pay in 10 days, full price at 30 days. Skipping the discount means paying 2.04 percent extra for 20 extra days, which annualizes to 36.73 percent. The Trade credit tab in the calculator runs this version.
On the math, usually yes when the annualized cost beats your borrowing cost. Skipping a 2/10 net 30 discount costs 36.73 percent a year. If a business line of credit costs 8 percent, borrowing to pay on day 10 is far cheaper than paying full price on day 30. Cash flow can still force a different choice, but it should be a forced choice, not a habit.
No. APC spreads charges evenly over the term, a straight-line average. It does not model a shrinking balance or the timing of payments inside the year. That simplicity is the point for quick comparisons, and the reason a regulated APR on an amortizing loan will usually differ from the APC on the same deal.
Judge it against the alternatives for the same borrower and term, not against an absolute scale. A secured car loan and an unsecured short term loan live in different ranges. The useful test is side by side: put both deals through the same APC inputs and the cheaper yearly percentage wins, then check the APR disclosure before signing.
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References
- Consumer Financial Protection Bureau, "What is the difference between a loan interest rate and the APR?" - the CFPB explanation of rate versus APR and what fees APR includes. CFPB: Interest Rate vs APR. Accessed October 2026.
- Consumer Financial Protection Bureau, Regulation Z (Truth in Lending), 12 CFR Part 1026 - the rule that defines finance charges and APR disclosure in the United States. CFPB: Regulation Z, Truth in Lending. Accessed October 2026.
- MoneyHelper, "What is APR?" - the UK consumer guide to annual percentage rates and the total cost of credit. MoneyHelper: What is APR?. Accessed October 2026.
- Financial Conduct Authority, "Consumer Credit sourcebook (CONC)" - UK rules on the total charge for credit and representative APR in agreements. FCA Handbook: Consumer Credit sourcebook. Accessed October 2026.
- Board of Governors of the Federal Reserve System, "Consumer Credit (G.19)" - the official US consumer credit release used for market rate context. Federal Reserve: Consumer Credit G.19. Accessed October 2026.
- Consumer Financial Protection Bureau, "What is a finance charge?" - CFPB definition of the finance charge as the cost of credit as a dollar amount. CFPB: What is a Finance Charge?. Accessed October 2026.
- Vanquis, "What is an APR?" - UK lender guide to representative and personal APR and how fees change the rate you actually pay. Vanquis: What is an APR?. Accessed October 2026.
- Board of Governors of the Federal Reserve System, "Report on the Economic Well-Being of U.S. Households" - household credit context and borrowing behaviour data. Federal Reserve: Economic Well-Being of US Households. Accessed October 2026.
- Consumer Financial Protection Bureau, "Payday loan disclosure and cost" resources - CFPB material on expressing very short term credit costs as annual percentages. CFPB: Payday Loans Consumer Tools. Accessed October 2026.