Mortgage Calculator
Calculate accurate loan payments, amortisation schedules, and total cost of borrowing instantly.
Last updated: August 2026
⚠️ Results are estimates for informational purposes only. See Disclaimer
Per sale net cashflow
Gross margin ratio
Cost & Profit Breakdown
Visual AllocationCalculator Inputs
Instant RecalculationCore Details
Optional & Advanced
Per sale net cashflow
Gross margin ratio
Cost & Profit Breakdown
Visual AllocationCalculator Inputs
Live RecalculationCore Details
Optional & Advanced
$200,000.00
$255,088.977
6.500%
Aug 2056
Remaining Balance Over Time
Principal vs Interest Per Year
What-If Scenarios
Compare Alternatives7.50% Interest Rate (+1%)
5.50% Interest Rate (-1%)
Shorter Term (348 months)
Pay Extra $100/mo
Amortization Schedule
Detailed breakdown of every payment.
Pmt # | Date | Beg. Balance | Payment | Principal | Interest | Extra | End Balance |
|---|---|---|---|---|---|---|---|
| 1 | Sep 2026 | $200,000.00 | $1,614.14 | $180.80 | $1,083.33 | $0.00 | $199,819.20 |
| 2 | Oct 2026 | $199,819.20 | $1,614.14 | $181.78 | $1,082.35 | $0.00 | $199,637.42 |
| 3 | Nov 2026 | $199,637.42 | $1,614.14 | $182.77 | $1,081.37 | $0.00 | $199,454.65 |
| 4 | Dec 2026 | $199,454.65 | $1,614.14 | $183.76 | $1,080.38 | $0.00 | $199,270.89 |
| 5 | Jan 2027 | $199,270.89 | $1,614.14 | $184.75 | $1,079.38 | $0.00 | $199,086.14 |
| 6 | Feb 2027 | $199,086.14 | $1,614.14 | $185.75 | $1,078.38 | $0.00 | $198,900.39 |
| 7 | Mar 2027 | $198,900.39 | $1,614.14 | $186.76 | $1,077.38 | $0.00 | $198,713.63 |
| 8 | Apr 2027 | $198,713.63 | $1,614.14 | $187.77 | $1,076.37 | $0.00 | $198,525.86 |
| 9 | May 2027 | $198,525.86 | $1,614.14 | $188.79 | $1,075.35 | $0.00 | $198,337.07 |
| 10 | Jun 2027 | $198,337.07 | $1,614.14 | $189.81 | $1,074.33 | $0.00 | $198,147.26 |
| 11 | Jul 2027 | $198,147.26 | $1,614.14 | $190.84 | $1,073.30 | $0.00 | $197,956.42 |
| 12 | Aug 2027 | $197,956.42 | $1,614.14 | $191.87 | $1,072.26 | $0.00 | $197,764.55 |
| 13 | Sep 2027 | $197,764.55 | $1,614.14 | $192.91 | $1,071.22 | $0.00 | $197,571.64 |
| 14 | Oct 2027 | $197,571.64 | $1,614.14 | $193.96 | $1,070.18 | $0.00 | $197,377.68 |
| 15 | Nov 2027 | $197,377.68 | $1,614.14 | $195.01 | $1,069.13 | $0.00 | $197,182.67 |
| 16 | Dec 2027 | $197,182.67 | $1,614.14 | $196.06 | $1,068.07 | $0.00 | $196,986.61 |
| 17 | Jan 2028 | $196,986.61 | $1,614.14 | $197.13 | $1,067.01 | $0.00 | $196,789.49 |
| 18 | Feb 2028 | $196,789.49 | $1,614.14 | $198.19 | $1,065.94 | $0.00 | $196,591.29 |
| 19 | Mar 2028 | $196,591.29 | $1,614.14 | $199.27 | $1,064.87 | $0.00 | $196,392.03 |
| 20 | Apr 2028 | $196,392.03 | $1,614.14 | $200.35 | $1,063.79 | $0.00 | $196,191.68 |
| 21 | May 2028 | $196,191.68 | $1,614.14 | $201.43 | $1,062.70 | $0.00 | $195,990.25 |
| 22 | Jun 2028 | $195,990.25 | $1,614.14 | $202.52 | $1,061.61 | $0.00 | $195,787.73 |
| 23 | Jul 2028 | $195,787.73 | $1,614.14 | $203.62 | $1,060.52 | $0.00 | $195,584.11 |
| 24 | Aug 2028 | $195,584.11 | $1,614.14 | $204.72 | $1,059.41 | $0.00 | $195,379.39 |
How Loan Amortisation Works: Complete Guide
A loan calculator helps you determine your monthly payment, total interest paid, and the full amortisation schedule for any type of loan — mortgage, personal loan, auto loan, student loan, or business loan. All calculations use industry-standard financial mathematics.
The Loan Payment Formula
The standard monthly payment formula is: PMT = P × [r(1+r)ⁿ] ÷ [(1+r)ⁿ − 1], where P is the principal loan amount, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments (years × 12). This formula produces a fixed payment that pays off exactly the loan balance over the term.
How Loan Amortisation Works
An amortised loan requires fixed, periodic payments. Early in the loan term, the majority of your payment goes toward paying interest on the outstanding balance. As the balance decreases over time, a progressively larger portion of each payment is applied to the principal. This is why paying even a small extra amount toward principal early in the loan can save a disproportionately large amount of total interest.
For example: On a $250,000 loan at 6.5% for 30 years, the first payment breaks down as approximately $1,085 interest and $495 principal. By payment 200, the split is closer to $800 interest and $780 principal.
Extra Payments — The Most Powerful Strategy
Making additional principal payments is the single most effective way to reduce total interest costs. Because interest is calculated on the remaining balance, paying extra principal directly reduces every future interest charge. Use the Extra Payment field to instantly see how much interest you can save.
Common strategies: (1) Round up your payment — if your payment is $1,247, pay $1,300. (2) Make one extra payment per year. (3) Switch to biweekly payments — you'll make 26 half-payments (equivalent to 13 monthly payments) per year.
Understanding APR vs Interest Rate
The Annual Percentage Rate (APR) is always higher than the nominal interest rate because it incorporates fees spread over the loan's life (origination fees, closing costs, discount points). When comparing loan offers, always compare APRs — not just interest rates — to understand the true cost of borrowing.
Loan Types Explained
Mortgage: Secured by real estate; typically 15–30 year terms at the lowest rates. Auto Loan: Secured by the vehicle; 3–7 year terms. Personal Loan: Unsecured; 1–7 years, higher rates reflecting greater lender risk. Student Loan: Federally or privately issued; may have income-based repayment options. Business Loan: Terms and rates vary by lender, collateral, and business creditworthiness.
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⚠️ Calculations are estimates for educational purposes only. Always verify with your lender before making financial decisions. See full disclaimer.
Frequently Asked Questions
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