Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Real Estate & Housing
How to Calculate Monthly Mortgage Payment
See payment instantly
Knowing your monthly mortgage payment is essential before making an offer. This calculator isolates principal and interest so you can compare homes and loan structures with clarity.
Interactive workspace
Monthly mortgage payment studio
Core inputs unchanged — add optional PITI, explore extra or bi-weekly payoffs, and compare how interest vs principal shifts over time.
Principal & interest
—
P&I only — toggle PITI below for taxes & insurance
Loan amount
—
P&I payment
—
Total interest
—
Payoff
—
Mortgage inputs
500003000000
01000000
115
1040
05000
Bi-weekly payments (26 half-payments per year) can finish about 70 months sooner and save $98,890.46 vs standard monthly — similar to one extra payment per year.
Open full bi-weekly mortgage calculator →Remaining loan balance
360 months · $340,000.00 → $0.00
High $340,000.00
Low $0.00
Amortization snapshot
Compare how much of each payment goes to interest vs principal at the start vs near payoff.
First 12 months — interest vs principal
Interest $21,988.11 (85%)Principal $3,800.27 (15%)
| Mo | Payment | Interest | Principal | Balance |
|---|---|---|---|---|
| 1 | $2,149.03 | $1,841.67 | $307.36 | $339,692.64 |
| 2 | $2,149.03 | $1,840.00 | $309.03 | $339,383.61 |
| 3 | $2,149.03 | $1,838.33 | $310.70 | $339,072.90 |
| 4 | $2,149.03 | $1,836.64 | $312.39 | $338,760.52 |
| 5 | $2,149.03 | $1,834.95 | $314.08 | $338,446.44 |
| 6 | $2,149.03 | $1,833.25 | $315.78 | $338,130.66 |
| 7 | $2,149.03 | $1,831.54 | $317.49 | $337,813.17 |
| 8 | $2,149.03 | $1,829.82 | $319.21 | $337,493.96 |
| 9 | $2,149.03 | $1,828.09 | $320.94 | $337,173.02 |
| 10 | $2,149.03 | $1,826.35 | $322.68 | $336,850.34 |
| 11 | $2,149.03 | $1,824.61 | $324.43 | $336,525.92 |
| 12 | $2,149.03 | $1,822.85 | $326.18 | $336,199.73 |
Pro strategic insights
Smart analysis
Recommendations
Tailored to your live inputs and result—guidance only, not professional advice.
- Tip
Try an extra $100/mo
Open “Pay off faster” below to see how small extra payments shorten a 30-year mortgage.
Continue with these numbers
Opens the next calculator with what you just entered. Planning estimates — not a lender or tax filing.
What if I pay bi-weekly instead?
Carrying $340,000
Carries the remaining balance, rate, and term into the bi-weekly comparison.
Open with my numbers →
Is renting still cheaper over 10 years?
Carrying $425,000
Same home price and rate. Down payment becomes a percent.
Open with my numbers →
How many months of cash cover this payment?
Carrying $2,149/mo
Puts the mortgage P&I into essential monthly spend.
P&I only unless you turned on taxes and insurance.
Open with my numbers →
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Home Price
Purchase price of the home.
Down Payment
Cash paid upfront; reduces the amount financed.
Interest Rate (%)
APR — the yearly interest rate. We convert it to a monthly rate (APR ÷ 12) inside the math.
Loan Term (years)
Loan length in years (we convert to months for the schedule).
- P&I
Principal & interest
The loan payment covering principal and interest only.
- PITI
Full monthly housing payment
P&I plus monthly escrow for property tax and homeowners insurance.
- P
Loan amount
Home price minus down payment.
- r
Monthly rate
Annual APR ÷ 12 ÷ 100.
- n
Term (months)
Number of scheduled payments.
When to use this Monthly Mortgage Payment
Common use cases
- Estimate principal and interest before pre-approval
- See how rate changes move the monthly payment
- Budget a purchase price against a target payment
Localized examples
- US conforming mortgage payment examples
- Canadian fixed-rate mortgage planning
What you get
- Loan amount, rate, and term drive live payment math
- Useful for offer and refinance comparisons
- No sign up — instant browser results
How to Calculate Monthly Mortgage Payment Step-by-Step
- 1Enter the purchase price of the home.
- 2Input your planned down payment amount.
- 3Set the expected mortgage interest rate and loan term.
- 4Review the estimated monthly principal and interest payment.
Governing formula
PITI = P&I + (tax/12) + (insurance/12); P&I = P · r(1+r)^n / ((1+r)^n − 1)
Fixed-rate mortgage payment with optional PITI breakdown (taxes & insurance), extra-payment what-ifs, and first vs last-year amortization ratios.
Example: set Home Price ($) = 425,000, Down Payment ($) = 85,000, Interest Rate (%) = 6.5, then read the result.
Variable definitions
- P&I
Principal & interest
The loan payment covering principal and interest only.
- PITI
Full monthly housing payment
P&I plus monthly escrow for property tax and homeowners insurance.
- P
Loan amount
Home price minus down payment.
- r
Monthly rate
Annual APR ÷ 12 ÷ 100.
- n
Term (months)
Number of scheduled payments.
- Toggle PITI to budget taxes and insurance alongside P&I.
- Extra payments reduce payoff time and total interest.
Practical guide
Using the Monthly Mortgage Payment Calculator well
Who this is for
Shoppers converting price, down payment, rate, and term into principal & interest before adding tax/insurance.
Worked example
A $425,000 price with $85,000 down at 6.5% for 30 years produces a P&I payment you can stress-test at +1% rate before making an offer strategy.
Payment is the starting line
Use this tool for P&I clarity, then layer taxes, insurance, and HOA from local data before you call the payment “affordable.”
Common pitfalls
- Comparing P&I alone across properties with very different tax rates
- Ignoring PMI when down payment is under 20% (where applicable)
Deeper read: open the full guide.
Frequently Asked Questions
Toggle “Include taxes & insurance (PITI)” to add estimated property tax and homeowners insurance to your monthly total. By default the headline shows principal and interest only.
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Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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