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Mortgage Calculator

Finance & Investment

Monthly payment, rates and early-payoff comparison

Quick Answer

Mortgage Calculator: Monthly payment, rates and early-payoff comparison. Payment = P × i × (1+i)ⁿ ÷ [(1+i)ⁿ − 1].

Equal payment: M=P×r×(1+r)ⁿ÷[(1+r)ⁿ-1] | Equal principal: k-th month=P/n+(P-P×(k-1)/n)×r | LPR (2025): 1Y 3.10% / 5Y+ 3.45% | Housing fund: 2.85%

Property fee /mo

Heating /yr

Insurance /yr

Equal Payment Monthly Payment4,462.58CNY
Total Loan1,000,000CNY
Total Payment1,606,529.86CNY
Total Interest606,529.86CNY
Interest Share37.8%

Payment Breakdown

Principal1,000,000 (62.2%)Interest606,530 (37.8%)
AssessmentLow interest share — light burden
Reference rates (2025)LPR 1Y 3.10% / 5Y+ 3.45% | Fund 2.85%

Calculation steps

  1. 1Principal 1,000,000, 360 months, equal payment
  2. 2Monthly payment = P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1) = 4,462.58
  3. 3Total repaid = payment × n = 1,606,529.86
  4. 4Total interest = total − principal = 606,529.86 (37.8%)

5Y+ LPR history (year-end)

20204.65%
20214.65%
20224.30%
20234.20%
20243.60%
20253.45%
Equal payment keeps the monthly outlay constant (better for stable budgets); equal principal costs more early on but saves 10–20% total interest over 30 years. LPR repricing applies from your loan's repricing date — a rate cut does not lower your payment immediately.

💡 Switch to the "Prepayment" tab to compare 3 early-payoff plans

Remaining principal at month N896,198.16CNY
Actual prepayment200,000.00CNY
Remaining after prepayment696,198.16CNY

3 Prepayment Plans

Same payment, shorter term

New Payment
4,462.58CNY
Months Left
208 mo
Interest Saved
210,557.63CNY

Same term, lower payment

New Payment
3,466.69CNY
Months Left
300 mo
Interest Saved
98,767.60CNY

Payment↓ + Term↓

New Payment
3,866.23CNY
Months Left
254 mo
Interest Saved
156,753.65CNY

💡 Plan 1 saves the most interest (same payment); Plan 2 gives the lowest payment; Plan 3 is in between

剩余本金曲线

Remaining principal / Years

048121620242830¥99.8w¥0.0w

Principal balance falls as payments continue

Yearly Breakdown

Y1Y30
PrincipalInterestHover for yearly details

Amortization schedule (360 payments)

PeriodMonthly PaymentPrincipalInterestRemaining
14,462.581,587.582,875.00998,412.42
24,462.581,592.152,870.44996,820.27
34,462.581,596.722,865.86995,223.55
44,462.581,601.322,861.27993,622.23
54,462.581,605.922,856.66992,016.31
64,462.581,610.542,852.05990,405.77
74,462.581,615.172,847.42988,790.61
84,462.581,619.812,842.77987,170.80
94,462.581,624.472,838.12985,546.33
104,462.581,629.142,833.45983,917.19
114,462.581,633.822,828.76982,283.37
124,462.581,638.522,824.06980,644.86

当前仅显示前12期，点击"展开全部"查看完整明细

Mortgage rate reference table

¥1,000,000 loan · 30 years · equal payment · compounded monthly. For reference only — actual terms follow your bank offer.

Annual RateMonthly PaymentTotal InterestTotal paid
3.00%4,216.04517,7751,517,775
3.10%4,270.16537,2591,537,259
3.20%4,324.67556,8811,556,881
3.30%4,379.55576,6391,576,639
3.40%4,434.81596,5321,596,532
3.50%4,490.45616,5611,616,561
3.60%4,546.45636,7231,636,723
3.70%4,602.83657,0191,657,019
3.80%4,659.57677,4461,677,446
3.90%4,716.68698,0061,698,006
4.00%4,774.15718,6951,718,695
4.10%4,831.98739,5141,739,514
4.20%4,890.17760,4621,760,462

Tip: every 0.1% off the rate saves roughly ¥20,000 interest on a 30-year ¥1M loan.

Prepayment scenarios: pay ¥200,000 lump sum

¥1,000,000 loan · 30 years · 3.6% · equal payment. After N payments, prepaying ¥200,000 either shortens the term or lowers the payment.

After payment #Balance beforeShorten term toInterest saved (term)Payment drops toInterest saved (payment)
12981,133242 mo281,9243,619.68122,518
24961,576233 mo268,2853,600.83117,730
36941,303224 mo254,6453,580.46112,981
60898,504206 mo227,3673,534.45103,602

Reading the table: the earlier you prepay, the more interest you kill — after only 12 payments a ¥200,000 lump sum saves the most, because early payments are mostly interest under equal-payment amortization. Choosing "shorten term" always saves more interest than "lower payment" for the same lump sum; "lower payment" wins when monthly cash flow is tight.

Rule of thumb: if your investment return is consistently below your mortgage rate, prepaying is a risk-free "return" at the mortgage rate; if you can beat the rate after tax and fees, keep the cash liquid.

Down payment & term scenarios (3.6%)

Down paymentDown (¥1.5M home)LoanMonthly (30y)
15%225,0001,275,0005,796.73
20%300,0001,200,0005,455.74
30%450,0001,050,0004,773.78
40%600,000900,0004,091.81
Term (¥1M loan)MonthlyTotal interestInterest vs 30y
20 yr5,851.11404,268+232,456
25 yr5,060.03518,008+118,715
30 yr4,546.45636,723—

Down payment: a larger down payment means a smaller loan and less interest, but keep 6–12 months of emergency funds after closing — renovation, furnishing and property fees arrive fast. Since 2024 the minimum down payment for first homes in most Chinese cities has been lowered to 15%, so the 15% row is realistic.

Term: 30 years minimizes the monthly payment (easier approval under income-to-debt rules) but maximizes total interest; 20 years cuts interest by roughly one third at a higher monthly. A common compromise: take 30 years for flexibility and prepay voluntarily when cash allows — you keep the option value.

Rate repricing: most commercial mortgages reprice on January 1 or the loan anniversary against the latest 5-year LPR. When LPR falls, your rate follows at the next repricing date without any action; housing-fund loans at 2.85% are usually the cheapest money you will ever borrow — use the fund loan quota first before commercial loans.

Equal payment vs equal principal — 1M at 3.6% over 30y

MethodMonthlyTotal interestNotes
Equal payment4,546.45636,723Fixed every month; easiest budgeting
Equal principal5,777.78 → 2,786.11541,500Front-heavy, tapering down

Same principal, same rate, same term: equal principal saves 95,223 in total interest — but the saving is earned with cash flow, not for free. Its first monthly runs 1,231 higher than the equal-payment line and only drops below it around month 148 (roughly 12 years in). If your early income can carry the front-load, equal principal is mathematically cheaper; if not, take 30 years of equal payment and prepay voluntarily — you keep the option value and land most of the same interest saving.

Combined loan vs pure commercial — 1M over 30y

PlanMonthlyTotal interestComparison
Pure commercial 3.45%4,462.58606,530Baseline
Combined: 700K commercial + 300K fund 2.85%4,364.48571,213Saves 35,317

Only 30% of the principal moves from 3.45% commercial to a 2.85% housing-fund loan, yet the 30-year interest saving reaches 35,317 — the fund loan is a rate subsidy you apply for. Check your city's fund loan caps and your contribution base first; if the quota covers even half of the principal, the combined route is nearly always worth the extra paperwork.

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How to Use

  1. Enter amounts and terms: fill principal, rate and period in the Mortgage Calculator (defaults work for a quick try).
  2. Instant results: key figures and cost breakdown update live as you type.
  3. Compare scenarios: tweak any parameter to compare costs and returns across plans.
  4. Copy key numbers: one-click copy for records or sharing with your advisor.

Key Points

  • Mortgage Calculator is a free online finance tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Monthly payment, rates and early-payoff comparison.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Equal monthly payment (annuity)

Payment = P × i × (1+i)ⁿ ÷ [(1+i)ⁿ − 1]
P = principal, i = annual rate ÷ 12, n = months
Total interest = payment × n − P

FAQ

How do I use the Mortgage Calculator?
Open the page and fill in the input fields — results update automatically. Monthly payment, rates and early-payoff comparison.
Are the results accurate?
Yes. Standard financial formulas and published rate data are used. For official figures, consult your financial institution.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Can I use the results for financial decisions?
Results are for reference. Consult a licensed financial advisor before major decisions.
Does it work on mobile?
Yes. Fully responsive on phones, tablets and desktops.

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Source & Updates

Based on published rate tables and standard financial formulas. Last updated: 2025-07

Authoritative sources:

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Mortgage Calculator[EB/OL]. https://www.yijiansuan.com/en/c/finance/mortgage

Results provided by this tool are for reference only and do not constitute professional advice.