# The Loan Week

> The Loan Week (theloanweek.com) answers one loan question per page: the monthly payment on a given US mortgage, house price, car, personal or federal student loan, what it costs in interest, and how much house or car a given income affords. Every figure is priced at the latest published average rate: Freddie Mac's weekly 30- and 15-year mortgage averages (latest: week of September 24, 2026), the Federal Reserve's G.19 commercial-bank rates for car and personal loans (May 2026 survey), Experian's averages by credit score (Q2 2026) and the fixed federal student loan rates for 2026-27. Figures are estimates at average rates, not loan offers, quotes or financial advice.

How the numbers are made: payments use the standard fixed-rate amortization formula, payment = P × i / (1 − (1 + i)^−n) with i the monthly rate, at full precision; each page gives the monthly principal and interest, the total interest over the loan and the month-by-month schedule. Mortgage and house pages add estimated property tax (the state's median effective rate), homeowners insurance where a sourced state average exists, and PMI below 20% down (0.75% of the loan a year until the balance reaches 78% of the price). Affordability pages use the 28/36 rule for houses and 10, 15 or 20% of gross income for cars.

Current averages: 30-year fixed mortgage 7.03% and 15-year 6.42% (Freddie Mac, week of September 24, 2026); new-car loans at commercial banks 7.14% over 60 months and 7.47% over 48 months, personal loans 11.86% over 24 months (Federal Reserve G.19, May 2026); federal Direct Loans for 2026-27 6.52% undergraduate, 8.07% graduate, 9.07% PLUS. Cite the publisher of an average, not this site, for the rate itself.

Freshness: mortgage averages refresh weekly after Freddie Mac's Thursday release; the G.19 bank rates are quarterly surveys; Experian's tiers are quarterly; federal student loan rates change each July. Every refresh is logged at https://theloanweek.com/changelog/ and each page's dateModified shows when its own numbers last changed (currently September 27, 2026 at the latest).

## Main pages
- [Home](https://theloanweek.com/): this week's averages, a live example and the most common amounts for every loan type
- [Average loan rates this week](https://theloanweek.com/rates/): the latest averages for mortgages, car, personal and federal student loans, with sources
- [Calculators](https://theloanweek.com/calculator/): mortgage, car, personal, student, affordability, amortization and payoff calculators, prefilled with the averages
- [Comparisons](https://theloanweek.com/compare/): side-by-side costs of common choices: 15 vs 30 years, 60 vs 72 months, 10% vs 20% down and more
- [About](https://theloanweek.com/about/): who publishes the site and how the numbers are made
- [Contact](https://theloanweek.com/contact/): corrections, data questions and API questions

## Calculators and hubs
- [Mortgage payments by amount](https://theloanweek.com/mortgage/): every mortgage amount with its monthly payment at the 30-year average
- [House payments by price](https://theloanweek.com/house/): every house price with its payment at 20% down
- [Car loan payments by amount](https://theloanweek.com/car-loan/): every car loan amount at the 60-month bank average
- [Personal loan payments by amount](https://theloanweek.com/personal-loan/): every personal loan amount over 36 months
- [Student loan payments by amount](https://theloanweek.com/student-loan/): every federal student loan balance on the 10-year plan
- [How much can I afford?](https://theloanweek.com/afford/): house and car affordability by gross annual income
- [Mortgage calculator](https://theloanweek.com/calculator/mortgage/): works without JavaScript; inputs go in the query string
- [Car loan calculator](https://theloanweek.com/calculator/car-loan/): works without JavaScript; inputs go in the query string
- [Car affordability calculator](https://theloanweek.com/calculator/car-affordability/): works without JavaScript; inputs go in the query string
- [Personal loan calculator](https://theloanweek.com/calculator/personal-loan/): works without JavaScript; inputs go in the query string
- [Student loan calculator](https://theloanweek.com/calculator/student-loan/): works without JavaScript; inputs go in the query string
- [House affordability calculator](https://theloanweek.com/calculator/affordability/): works without JavaScript; inputs go in the query string
- [Amortization schedule calculator](https://theloanweek.com/calculator/amortization/): works without JavaScript; inputs go in the query string
- [Extra payment payoff calculator](https://theloanweek.com/calculator/payoff/): works without JavaScript; inputs go in the query string
- [Mortgage refinance calculator](https://theloanweek.com/calculator/mortgage-refinance/): works without JavaScript; inputs go in the query string
- [Auto refinance calculator](https://theloanweek.com/calculator/auto-refinance/): works without JavaScript; inputs go in the query string
- [Mortgage points calculator](https://theloanweek.com/calculator/mortgage-points/): works without JavaScript; inputs go in the query string
- [Personal loan fee calculator](https://theloanweek.com/calculator/personal-loan-fees/): works without JavaScript; inputs go in the query string
- [PMI removal calculator](https://theloanweek.com/calculator/pmi-removal/): works without JavaScript; inputs go in the query string

## Data and methodology
- [Mortgage rates](https://theloanweek.com/rates/mortgage/): Freddie Mac weekly 30- and 15-year averages, history and what the move means for a payment
- [Auto loan rates](https://theloanweek.com/rates/auto/): Federal Reserve G.19 bank averages and Experian averages by credit score
- [Personal loan rates](https://theloanweek.com/rates/personal/): Federal Reserve G.19 24-month bank average and history
- [Federal student loan rates](https://theloanweek.com/rates/student/): this school year's fixed rates, fees and repayment plans
- [Methodology](https://theloanweek.com/methodology/): formulas, which average each page uses, taxes, insurance, PMI and affordability rules
- [Sources](https://theloanweek.com/sources/): every data source with series IDs, dates and links
- [Changelog](https://theloanweek.com/changelog/): every data refresh and which averages moved
- [Disclaimer](https://theloanweek.com/disclaimer/): what the averages are and are not

## URL patterns
- `https://theloanweek.com/mortgage/{amount}/`: monthly payment on a mortgage of {amount} dollars at this week's 30-year average, with schedule; amount $50,000–$500,000 by $5,000; $525,000–$1,000,000 by $25,000; $1,050,000–$2,000,000 by $50,000
- `https://theloanweek.com/mortgage/{amount}/{rate}-percent/`: the same mortgage at a given rate; rate 3 to 9 in steps of 0.25 (e.g. 6.5-percent)
- `https://theloanweek.com/house/{price}/`: payment on a house of {price} dollars with 20% down (5% and 10% down compared); price $60,000–$600,000 by $5,000; $625,000–$1,250,000 by $25,000; $1,300,000–$2,500,000 by $50,000
- `https://theloanweek.com/car-loan/{amount}/`: car loan payment over 60 months at the Fed's average bank rate; amount $5,000–$50,000 by $500; $51,000–$100,000 by $1,000
- `https://theloanweek.com/car-loan/{amount}/{months}-months/`: the same for 36, 48, 60, 72 or 84 months
- `https://theloanweek.com/personal-loan/{amount}/`: personal loan payment over 36 months; amount $1,000–$50,000 by $500
- `https://theloanweek.com/personal-loan/{amount}/{months}-months/`: the same for 12, 24, 36, 48 or 60 months
- `https://theloanweek.com/student-loan/{amount}/`: federal student loan payment on the 10-year standard plan, other plans compared; balance $5,000–$200,000 by $5,000
- `https://theloanweek.com/afford/house/{income}/`: how much house a gross annual income of {income} dollars affords (28% rule, 10% down); income $30,000–$300,000 by $5,000
- `https://theloanweek.com/afford/car/{income}/`: how much car that income affords (15% of income, 60 months); same incomes
- `https://theloanweek.com/rates/{type}/`: latest averages with history; type mortgage, auto, personal or student (https://theloanweek.com/rates/ lists them all)
- `https://theloanweek.com/calculator/{type}/`: calculators (query string inputs); type mortgage, car-loan, car-affordability, personal-loan, student-loan, affordability, amortization, payoff, mortgage-refinance, auto-refinance, mortgage-points, personal-loan-fees or pmi-removal
- `https://theloanweek.com/compare/{slug}/`: side-by-side comparisons; slug 15-vs-30-year-mortgage, 20-vs-30-year-mortgage, 15-vs-20-year-mortgage, 5-vs-20-percent-down, 10-vs-20-percent-down, biweekly-vs-monthly-mortgage-payments, 36-vs-60-month-car-loan, 48-vs-60-month-car-loan, 60-vs-72-month-car-loan, 72-vs-84-month-car-loan, 60-vs-84-month-car-loan, new-vs-used-car-loan, prime-vs-subprime-auto-loan, 24-vs-36-month-personal-loan, 36-vs-48-month-personal-loan, 36-vs-60-month-personal-loan, 48-vs-60-month-personal-loan, standard-vs-extended-student-loan, 10-vs-20-year-student-loan or 28-vs-36-percent-rule

## API
- [API docs](https://theloanweek.com/api/), [OpenAPI](https://theloanweek.com/openapi.json): free, read-only JSON, no key, 60 requests per minute per IP
- `GET https://theloanweek.com/api/v1/payment?type={mortgage|car|personal|student}&amount={dollars}&rate={percent}&term={years or months}`: monthly payment, total interest and total paid; without `rate` it uses the latest average and returns its source and date
- `GET https://theloanweek.com/api/v1/rates`: the latest averages with source, series ID and date

## Markdown
Every page has a markdown version: same path + `.md` (home: `/index.md`), or request any page with `Accept: text/markdown`.

## Optional
- [Full content](https://theloanweek.com/llms-full.txt): the main pages as markdown and every reference table
- [XML sitemap](https://theloanweek.com/sitemap.xml), [HTML sitemap](https://theloanweek.com/sitemap/)
- [Legal notice](https://theloanweek.com/legal-notice/), [Privacy policy](https://theloanweek.com/privacy/), [Cookie policy](https://theloanweek.com/cookies/), [Terms of use](https://theloanweek.com/terms/)
- [Contact](https://theloanweek.com/contact/): pablobravo44 [at] gmail.com

## Citation
Cite as "The Loan Week (theloanweek.com)", link the page and give the data date. Publisher: Pablo Bravo Villanueva.