Calculators
Run the numbers before you move.
Five linked calculators for Oʻahu buyers, sellers and owners: payment, debt-to-income, seller net sheet, rental income and early payoff. Pick your situation once and it carries through.
What will the monthly payment be?
Pick your situation, then enter the price, down payment, and rate. You'll see the full monthly payment with taxes, insurance, and HOA, plus the payoff schedule.
✏️ Example numbers. Change any field.Your situation
Buying without a home to sell, like a first home or a move from a rental.
Mortgage information
Monthly costsoptional
Uses Honolulu's FY2027 rates on the price, after the home exemption for owner-occupants. Assessed values often run below the price, so check the actual bill on qPublic.
Estimated monthly payment
Compare your options
Same price, rate, and term| Per month | |||
|---|---|---|---|
| Down payment | $170,000 | $328,744 | $170,000 |
| Loan amount | $680,000 | $521,256 | $680,000 |
| New home payment | $4,636 | $3,633 | $4,636 |
| Current home | None | Sold | -$303 cash flow |
| Out of pocket | $4,636 | $3,633 | $4,939 |
| Sale cash left over | - | $0 | - |
| Back-end DTI | ✅ 34.7% | ✅ 28.5% | ⚠️ 36.9% |
New purchase and Rent out & buy use the down payment you entered. Sell & buy uses your sale proceeds. Tap an option to switch to it.
Balance over time
Loan balanceInterest paid to datePaid off in November 2056. Move across the chart to see any year.
Amortization schedule
| Year | Payments | Principal | Interest | Ending balance |
|---|---|---|---|---|
| 2026 | 1 | $615 | $3,683 | $679,385 |
| 2027 | 12 | $7,642 | $43,935 | $671,744 |
| 2028 | 12 | $8,153 | $43,423 | $663,590 |
| 2029 | 12 | $8,700 | $42,877 | $654,891 |
| 2030 | 12 | $9,282 | $42,295 | $645,608 |
| 2031 | 12 | $9,904 | $41,673 | $635,705 |
| 2032 | 12 | $10,567 | $41,010 | $625,138 |
| 2033 | 12 | $11,275 | $40,302 | $613,863 |
| 2034 | 12 | $12,030 | $39,547 | $601,833 |
| 2035 | 12 | $12,836 | $38,741 | $588,997 |
| 2036 | 12 | $13,695 | $37,882 | $575,302 |
| 2037 | 12 | $14,612 | $36,964 | $560,690 |
| 2038 | 12 | $15,591 | $35,986 | $545,099 |
| 2039 | 12 | $16,635 | $34,942 | $528,464 |
| 2040 | 12 | $17,749 | $33,828 | $510,715 |
| 2041 | 12 | $18,938 | $32,639 | $491,777 |
| 2042 | 12 | $20,206 | $31,371 | $471,570 |
| 2043 | 12 | $21,559 | $30,017 | $450,011 |
| 2044 | 12 | $23,003 | $28,573 | $427,008 |
| 2045 | 12 | $24,544 | $27,033 | $402,464 |
| 2046 | 12 | $26,188 | $25,389 | $376,276 |
| 2047 | 12 | $27,941 | $23,635 | $348,335 |
| 2048 | 12 | $29,813 | $21,764 | $318,522 |
| 2049 | 12 | $31,809 | $19,767 | $286,713 |
| 2050 | 12 | $33,940 | $17,637 | $252,773 |
| 2051 | 12 | $36,213 | $15,364 | $216,560 |
| 2052 | 12 | $38,638 | $12,939 | $177,922 |
| 2053 | 12 | $41,226 | $10,351 | $136,697 |
| 2054 | 12 | $43,987 | $7,590 | $92,710 |
| 2055 | 12 | $46,932 | $4,644 | $45,778 |
| 2056 | 11 | $45,778 | $1,501 | $0 |
Save this estimate
The PDF covers the calculator you're on, with your situation and the full breakdown.
General information only, not lending, tax, or legal advice. Estimates assume a fixed rate and on-time payments. Taxes, fees, insurance, and lender rules vary. Talk with a licensed lender, your escrow officer, or a tax professional for exact numbers.
Placyn Homes is affiliated with Daniel Ulu (RS-76778) and The Ulu Team, under the brokerage of Keller Williams Honolulu (RB-21303). Each Office Independently Owned & Operated.
What these numbers can and can't tell you
They're planning estimates with the assumptions shown next to each figure. A lender's Loan Estimate, an escrow settlement statement and your county tax bill replace them once you have them.
Want a second look at your numbers? Talk with Placyn Homes, or see the buyer cash-to-close calculator.
Sources
- Honolulu FY2027 real property tax rates
- Hawaiʻi Department of Taxation, HARPTA
- Mortgage News Daily rate index
- CFPB guide to buying a home
Seller escrow fees follow Title Guaranty Escrow's January 2026 schedule. Assumptions reviewed November 2, 2026.